[ci] Capture Vercel runtime logs when e2e Vercel Prod lanes fail by VaguelySerious · Pull Request #2356 · vercel/workflow

VaguelySerious · 2026-06-11T10:22:14Z

Summary

When an E2E Vercel Prod Tests lane fails, CI now fetches the runtime request logs of the deployment under test and uploads them as part of the existing e2e-results-vercel-prod-* artifact, with the most relevant rows echoed into the job log.

Runtime logs are the missing piece when triaging these flakes: the harness already captures workflow run state and event timelines, but not what the deployed functions actually logged (crashes, unhandled rejections, cold-start failures). Today that information is simply lost.

How it works

A new .github/scripts/fetch-e2e-runtime-logs.mjs runs with if: failure() after the test step, using the same request-logs API as vercel logs.
The deployment is shared with concurrent CI runs and a test window can span tens of thousands of request rows, so instead of a bulk dump the script makes targeted queries:
1. an error/fatal-level sweep of the test window (server-side level filter), and
2. a per-failed-run query for each workflow run ID found in the e2e-failures-*.json sidecar (each request row carries a workflowRunId).
Rows are deduped by request ID and written to e2e-runtime-logs-{app}-vercel.json; the aggregation script excludes the new sidecar from vitest-result globbing.
The script never fails the job (exit 0 on any error) and no-ops gracefully when env/sidecars are missing.

Validation

Ran the script locally against the deployment from a real failed lane (E2E Vercel Prod (nitro), run 27291235666, 2026-06-10). It captured 23 targeted rows including the failed test's run — and immediately surfaced the kind of evidence this exists for:

[error] Unhandled Rejection: TypeError: fetch failed
[fatal] Node.js process exited with exit status: 128.

i.e. the deployed function process crashed mid-test — the failure mode addressed by #2336, invisible until now from the CI side.

Empty changeset: CI tooling only, no published packages touched.

🤖 Generated with Claude Code

When the e2e test step fails, fetch the deployment's runtime request logs via the same request-logs API the vercel CLI uses — an error/fatal-level sweep of the test window plus per-failed-run queries keyed by the workflow run IDs from the failures sidecar — and upload them as a job artifact. Runtime logs were the missing diagnostic: the harness records run state and event timelines, but not what the deployed functions logged (crashes, unhandled rejections, cold-start failures). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

vercel · 2026-06-11T10:22:17Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-nextjs-workflow-webpack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-astro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-express-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-fastify-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-hono-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nitro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nuxt-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-sveltekit-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-tanstack-start-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-vite-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-docs	Ready	Preview, Comment, Open in v0	Jun 11, 2026 10:25am
workflow-swc-playground	Ready	Preview, Comment	Jun 11, 2026 10:25am
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workflow-web	Ready	Preview, Comment	Jun 11, 2026 10:25am

changeset-bot · 2026-06-11T10:22:20Z

🦋 Changeset detected

Latest commit: 0a43289

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

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github-actions · 2026-06-11T10:22:30Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.041s (-3.3%)	1.006s (~)	0.965s	10	1.00x
💻 Local	Express	0.048s (+10.2% 🔺)	1.007s (~)	0.960s	10	1.15x
🐘 Postgres	Nitro	0.056s (-11.9% 🟢)	1.012s (~)	0.957s	10	1.35x
🐘 Postgres	Express	0.059s (-10.4% 🟢)	1.012s (~)	0.953s	10	1.43x
💻 Local	Next.js (Turbopack)	0.060s (+9.6% 🔺)	1.006s (~)	0.946s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.062s (-11.7% 🟢)	1.011s (~)	0.949s	10	1.49x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.267s (+2.0%)	2.346s (-3.7%)	2.079s	10	1.00x
▲ Vercel	Next.js (Turbopack)	0.282s (-14.3% 🟢)	2.592s (+10.7% 🔺)	2.310s	10	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.094s (~)	2.006s (~)	0.913s	10	1.00x
💻 Local	Express	1.097s (~)	2.007s (~)	0.909s	10	1.00x
🐘 Postgres	Express	1.103s (+1.0%)	2.010s (~)	0.907s	10	1.01x
🐘 Postgres	Nitro	1.107s (-0.6%)	2.009s (~)	0.903s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.125s (-1.4%)	2.010s (~)	0.884s	10	1.03x
💻 Local	Next.js (Turbopack)	1.130s (+1.9%)	2.006s (~)	0.876s	10	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.695s (+8.2% 🔺)	3.520s (~)	1.825s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.772s (+6.4% 🔺)	3.766s (-7.6% 🟢)	1.994s	10	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.520s (~)	11.023s (~)	0.503s	3	1.00x
🐘 Postgres	Nitro	10.541s (~)	11.019s (~)	0.478s	3	1.00x
🐘 Postgres	Express	10.563s (-1.4%)	11.015s (-3.0%)	0.452s	3	1.00x
💻 Local	Express	10.586s (~)	11.024s (~)	0.438s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.660s (-1.5%)	11.022s (~)	0.362s	3	1.01x
💻 Local	Next.js (Turbopack)	10.771s (+1.6%)	11.024s (~)	0.253s	3	1.02x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	14.355s (+7.8% 🔺)	15.964s (+2.4%)	1.609s	2	1.00x
▲ Vercel	Next.js (Turbopack)	15.120s (+12.0% 🔺)	16.716s (+3.8%)	1.596s	2	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	13.755s (-1.1%)	14.028s (-1.4%)	0.272s	5	1.00x
🐘 Postgres	Nitro	13.800s (~)	14.017s (~)	0.218s	5	1.00x
💻 Local	Nitro	13.804s (+0.6%)	14.026s (~)	0.222s	5	1.00x
🐘 Postgres	Express	13.914s (+0.6%)	14.019s (-1.5%)	0.105s	5	1.01x
🐘 Postgres	Next.js (Turbopack)	14.024s (-3.9%)	14.821s (-1.3%)	0.797s	5	1.02x
💻 Local	Next.js (Turbopack)	14.304s (+2.0%)	15.029s (+2.8%)	0.725s	4	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	22.983s (-9.9% 🟢)	24.662s (-10.7% 🟢)	1.679s	3	1.00x
▲ Vercel	Next.js (Turbopack)	23.428s (-8.2% 🟢)	25.672s (-5.6% 🟢)	2.244s	3	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.350s (-3.0%)	13.016s (-2.2%)	0.665s	7	1.00x
🐘 Postgres	Nitro	12.422s (-2.5%)	13.019s (~)	0.596s	7	1.01x
💻 Local	Nitro	12.439s (~)	13.026s (~)	0.586s	7	1.01x
💻 Local	Express	12.472s (-1.0%)	13.027s (~)	0.554s	7	1.01x
🐘 Postgres	Next.js (Turbopack)	13.101s (-4.8%)	13.730s (-2.1%)	0.629s	7	1.06x
💻 Local	Next.js (Turbopack)	13.657s (+5.5% 🔺)	14.027s (+5.4% 🔺)	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	32.711s (+12.6% 🔺)	34.708s (+10.6% 🔺)	1.997s	3	1.00x
▲ Vercel	Next.js (Turbopack)	33.765s (+14.0% 🔺)	36.258s (+13.8% 🔺)	2.493s	3	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.180s (-1.7%)	2.007s (-0.7%)	0.828s	15	1.00x
💻 Local	Nitro	1.180s (-2.7%)	2.006s (~)	0.826s	15	1.00x
🐘 Postgres	Nitro	1.195s (~)	2.008s (~)	0.813s	15	1.01x
💻 Local	Express	1.264s (~)	2.006s (~)	0.742s	15	1.07x
🐘 Postgres	Next.js (Turbopack)	1.280s (+2.3%)	2.074s (+3.3%)	0.795s	15	1.08x
💻 Local	Next.js (Turbopack)	1.307s (+6.8% 🔺)	2.006s (~)	0.700s	15	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.615s (-5.6% 🟢)	4.027s (-7.2% 🟢)	1.412s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.199s (+19.0% 🔺)	4.592s (+8.8% 🔺)	1.392s	7	1.22x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.245s (-1.1%)	2.007s (~)	0.762s	15	1.00x
🐘 Postgres	Express	1.272s (-4.1%)	2.007s (~)	0.735s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.349s (-4.3%)	2.007s (~)	0.658s	15	1.08x
💻 Local	Nitro	1.715s (+0.6%)	2.006s (-3.2%)	0.291s	15	1.38x
💻 Local	Express	1.748s (-7.1% 🟢)	2.006s (-9.7% 🟢)	0.258s	15	1.40x
💻 Local	Next.js (Turbopack)	1.836s (+6.4% 🔺)	2.074s (+3.4%)	0.238s	15	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.676s (-9.7% 🟢)	5.193s (-16.4% 🟢)	1.517s	6	1.00x
▲ Vercel	Next.js (Turbopack)	4.162s (+1.4%)	5.659s (-7.8% 🟢)	1.496s	6	1.13x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-1.6%)	2.008s (~)	0.625s	15	1.00x
🐘 Postgres	Express	1.402s (+0.6%)	2.007s (~)	0.605s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.596s (-9.3% 🟢)	2.143s (-6.6% 🟢)	0.547s	15	1.15x
💻 Local	Nitro	4.620s (-2.1%)	5.012s (~)	0.391s	6	3.34x
💻 Local	Express	4.638s (-12.5% 🟢)	5.345s (-11.1% 🟢)	0.707s	6	3.35x
💻 Local	Next.js (Turbopack)	5.511s (+25.4% 🔺)	6.013s (+20.0% 🔺)	0.501s	5	3.98x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.462s (-18.9% 🟢)	7.360s (-15.5% 🟢)	1.898s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.898s (+17.5% 🔺)	8.815s (+13.3% 🔺)	1.917s	4	1.26x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.187s (-1.1%)	2.008s (~)	0.821s	15	1.00x
🐘 Postgres	Express	1.188s (-1.2%)	2.008s (~)	0.820s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.200s (-5.2% 🟢)	2.009s (~)	0.808s	15	1.01x
💻 Local	Next.js (Turbopack)	1.340s (+2.6%)	2.007s (~)	0.667s	15	1.13x
💻 Local	Nitro	1.485s (-3.8%)	2.006s (~)	0.521s	15	1.25x
💻 Local	Express	1.507s (-9.0% 🟢)	2.007s (-3.2%)	0.500s	15	1.27x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.456s (-8.1% 🟢)	3.852s (-11.1% 🟢)	1.396s	8	1.00x
▲ Vercel	Next.js (Turbopack)	2.655s (-39.3% 🟢)	4.323s (-31.3% 🟢)	1.668s	7	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.235s (-3.1%)	2.008s (~)	0.772s	15	1.00x
🐘 Postgres	Express	1.250s (+0.5%)	2.009s (~)	0.759s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.316s (-5.8% 🟢)	2.007s (~)	0.690s	15	1.07x
💻 Local	Next.js (Turbopack)	2.020s (~)	2.592s (+3.4%)	0.572s	12	1.63x
💻 Local	Nitro	2.031s (+15.6% 🔺)	2.591s (+25.0% 🔺)	0.560s	12	1.64x
💻 Local	Express	2.040s (-4.0%)	2.470s (-4.6%)	0.430s	13	1.65x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	3.367s (-25.5% 🟢)	4.908s (-20.4% 🟢)	1.541s	7	1.00x
▲ Vercel	Nitro	3.602s (-12.0% 🟢)	5.404s (-10.0% 🟢)	1.802s	6	1.07x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.378s (-5.7% 🟢)	2.007s (~)	0.629s	15	1.00x
🐘 Postgres	Express	1.400s (-6.7% 🟢)	2.008s (-16.2% 🟢)	0.608s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.616s (-2.4%)	2.151s (+3.7%)	0.535s	14	1.17x
💻 Local	Express	5.184s (-11.6% 🟢)	5.848s (-5.9% 🟢)	0.664s	6	3.76x
💻 Local	Nitro	5.367s (+13.2% 🔺)	6.015s (+12.6% 🔺)	0.648s	6	3.89x
💻 Local	Next.js (Turbopack)	5.729s (+11.0% 🔺)	6.414s (+6.6% 🔺)	0.685s	5	4.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.785s (+17.3% 🔺)	7.247s (+7.6% 🔺)	1.462s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.222s (+7.4% 🔺)	8.268s (+9.1% 🔺)	2.046s	4	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.566s (-7.0% 🟢)	1.023s (+1.6%)	0.457s	59	1.00x
🐘 Postgres	Express	0.569s (-14.6% 🟢)	1.041s (-0.6%)	0.472s	58	1.01x
💻 Local	Nitro	0.583s (-27.6% 🟢)	1.005s (-16.6% 🟢)	0.422s	60	1.03x
💻 Local	Express	0.598s (-8.8% 🟢)	1.005s (-3.3%)	0.407s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.664s (-18.3% 🟢)	1.023s (+1.7%)	0.360s	59	1.17x
💻 Local	Next.js (Turbopack)	0.850s (+22.1% 🔺)	1.005s (~)	0.155s	60	1.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.519s (-26.0% 🟢)	6.990s (-26.6% 🟢)	1.471s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.864s (+16.2% 🔺)	7.891s (+15.2% 🔺)	2.027s	8	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.315s (-7.2% 🟢)	2.008s (~)	0.693s	45	1.00x
🐘 Postgres	Express	1.382s (-10.0% 🟢)	2.029s (-5.7% 🟢)	0.647s	45	1.05x
💻 Local	Nitro	1.516s (+3.6%)	2.006s (~)	0.490s	45	1.15x
💻 Local	Express	1.542s (-3.1%)	2.007s (-1.1%)	0.465s	45	1.17x
🐘 Postgres	Next.js (Turbopack)	1.576s (-18.9% 🟢)	2.007s (-7.7% 🟢)	0.431s	45	1.20x
💻 Local	Next.js (Turbopack)	2.054s (+18.8% 🔺)	3.008s (+48.3% 🔺)	0.954s	30	1.56x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	13.967s (+5.7% 🔺)	15.727s (+1.6%)	1.760s	6	1.00x
▲ Vercel	Next.js (Turbopack)	15.435s (+4.5%)	17.236s (+1.8%)	1.801s	6	1.11x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.584s (-11.3% 🟢)	3.034s (-7.5% 🟢)	0.449s	40	1.00x
🐘 Postgres	Express	2.692s (-7.5% 🟢)	3.136s (-11.4% 🟢)	0.444s	39	1.04x
🐘 Postgres	Next.js (Turbopack)	3.127s (-19.0% 🟢)	4.009s (-1.7%)	0.882s	30	1.21x
💻 Local	Nitro	3.272s (+2.1%)	3.978s (-0.8%)	0.705s	31	1.27x
💻 Local	Express	3.337s (-2.4%)	4.010s (~)	0.673s	30	1.29x
💻 Local	Next.js (Turbopack)	4.322s (+15.9% 🔺)	5.010s (+21.9% 🔺)	0.688s	24	1.67x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	26.486s (-11.1% 🟢)	28.519s (-10.8% 🟢)	2.033s	5	1.00x
▲ Vercel	Next.js (Turbopack)	29.701s (+10.1% 🔺)	32.280s (+10.3% 🔺)	2.579s	4	1.12x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.215s (-8.5% 🟢)	1.006s (~)	0.791s	60	1.00x
🐘 Postgres	Express	0.221s (-12.3% 🟢)	1.006s (~)	0.785s	60	1.03x
🐘 Postgres	Next.js (Turbopack)	0.240s (-15.0% 🟢)	1.006s (~)	0.766s	60	1.11x
💻 Local	Nitro	0.466s (+9.8% 🔺)	1.022s (+1.8%)	0.556s	59	2.16x
💻 Local	Express	0.469s (+1.0%)	1.005s (~)	0.535s	60	2.18x
💻 Local	Next.js (Turbopack)	0.581s (-4.9%)	1.005s (-3.3%)	0.424s	60	2.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	2.282s (+3.7%)	3.811s (-9.7% 🟢)	1.530s	16	1.00x
▲ Vercel	Nitro	2.283s (-2.6%)	3.784s (-12.7% 🟢)	1.501s	16	1.00x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.337s (-9.1% 🟢)	1.007s (~)	0.669s	90	1.00x
🐘 Postgres	Express	0.346s (+2.2%)	1.007s (~)	0.660s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.419s (-13.1% 🟢)	1.006s (~)	0.587s	90	1.24x
💻 Local	Nitro	2.112s (+2.3%)	2.580s (-2.2%)	0.469s	35	6.26x
💻 Local	Express	2.217s (+1.2%)	2.797s (-0.9%)	0.580s	33	6.58x
💻 Local	Next.js (Turbopack)	2.325s (-5.1% 🟢)	3.009s (-3.2%)	0.684s	30	6.90x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.265s (-88.0% 🟢)	6.802s (-85.2% 🟢)	1.536s	14	1.00x
▲ Vercel	Next.js (Turbopack)	5.662s (-9.7% 🟢)	7.304s (-14.0% 🟢)	1.641s	13	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.662s (-6.4% 🟢)	1.007s (~)	0.345s	120	1.00x
🐘 Postgres	Express	0.666s (+6.4% 🔺)	1.006s (-4.6%)	0.341s	120	1.01x
🐘 Postgres	Next.js (Turbopack)	0.817s (-16.6% 🟢)	1.006s (-37.4% 🟢)	0.189s	120	1.23x
💻 Local	Nitro	9.727s (+11.7% 🔺)	10.194s (+9.2% 🔺)	0.467s	12	14.69x
💻 Local	Express	9.905s (-4.0%)	10.446s (-3.9%)	0.540s	12	14.96x
💻 Local	Next.js (Turbopack)	10.259s (-0.5%)	10.936s (-3.2%)	0.677s	11	15.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	15.846s (-94.9% 🟢)	17.641s (-94.4% 🟢)	1.795s	8	1.00x
▲ Vercel	Next.js (Turbopack)	18.329s (-88.5% 🟢)	20.381s (-87.4% 🟢)	2.052s	6	1.16x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.157s (-3.1%)	2.001s (~)	0.001s (-97.7% 🟢)	2.011s (-1.6%)	0.854s	10	1.00x
💻 Local	Express	1.162s (-0.5%)	2.005s (~)	0.011s (-18.0% 🟢)	2.018s (~)	0.856s	10	1.00x
💻 Local	Nitro	1.164s (+1.2%)	2.005s (~)	0.011s (+5.0%)	2.018s (~)	0.853s	10	1.01x
🐘 Postgres	Nitro	1.169s (-1.0%)	1.997s (~)	0.001s (-21.4% 🟢)	2.010s (~)	0.840s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.202s (-2.6%)	2.000s (~)	0.001s (-13.3% 🟢)	2.010s (~)	0.807s	10	1.04x
💻 Local	Next.js (Turbopack)	1.208s (+3.4%)	2.004s (~)	0.012s (+18.8% 🔺)	2.020s (~)	0.812s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.560s (+18.3% 🔺)	3.481s (+1.9%)	1.422s (+175.7% 🔺)	5.458s (+22.1% 🔺)	2.898s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.635s (+17.5% 🔺)	3.564s (~)	1.068s (-91.4% 🟢)	5.102s (-69.1% 🟢)	2.467s	10	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.571s (-9.6% 🟢)	2.002s (-6.6% 🟢)	0.005s (+75.1% 🔺)	2.027s (-6.2% 🟢)	0.456s	30	1.00x
🐘 Postgres	Nitro	1.572s (-5.5% 🟢)	2.003s (~)	0.005s (+34.2% 🔺)	2.028s (~)	0.456s	30	1.00x
💻 Local	Nitro	1.581s (-9.3% 🟢)	2.010s (~)	0.013s (+42.7% 🔺)	2.026s (-7.9% 🟢)	0.445s	30	1.01x
💻 Local	Express	1.600s (-2.2%)	2.011s (~)	0.014s (+26.9% 🔺)	2.027s (~)	0.427s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.648s (-6.5% 🟢)	2.009s (~)	0.004s (+8.3% 🔺)	2.025s (~)	0.376s	30	1.05x
💻 Local	Next.js (Turbopack)	1.717s (+4.6%)	2.009s (~)	0.013s (+29.4% 🔺)	2.025s (~)	0.308s	30	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.716s (-0.5%)	6.856s (-9.8% 🟢)	0.237s (-29.9% 🟢)	7.551s (-11.0% 🟢)	1.835s	8	1.00x
▲ Vercel	Next.js (Turbopack)	5.946s (-6.7% 🟢)	7.117s (-10.3% 🟢)	0.202s (-44.2% 🟢)	7.771s (-12.3% 🟢)	1.825s	8	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.663s (-8.2% 🟢)	1.011s (-1.9%)	0.000s (-67.2% 🟢)	1.024s (-2.2%)	0.361s	59	1.00x
🐘 Postgres	Express	0.692s (-29.2% 🟢)	1.012s (-29.1% 🟢)	0.000s (-52.5% 🟢)	1.033s (-28.7% 🟢)	0.340s	59	1.04x
🐘 Postgres	Next.js (Turbopack)	0.818s (-1.8%)	1.071s (~)	0.000s (-1.8%)	1.078s (~)	0.260s	57	1.23x
💻 Local	Nitro	1.408s (+4.1%)	2.013s (~)	0.000s (-33.3% 🟢)	2.016s (~)	0.607s	30	2.12x
💻 Local	Next.js (Turbopack)	1.448s (~)	2.013s (~)	0.000s (-37.5% 🟢)	2.016s (~)	0.568s	30	2.18x
💻 Local	Express	1.450s (-2.2%)	2.014s (~)	0.000s (-6.7% 🟢)	2.017s (~)	0.567s	30	2.19x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.079s (-14.5% 🟢)	4.197s (-17.2% 🟢)	0.000s (NaN%)	4.623s (-17.9% 🟢)	1.544s	13	1.00x
▲ Vercel	Next.js (Turbopack)	3.151s (-4.8%)	4.387s (-10.4% 🟢)	0.000s (NaN%)	4.831s (-11.5% 🟢)	1.680s	13	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.289s (-8.6% 🟢)	2.034s (+1.9%)	0.000s (NaN%)	2.052s (+2.0%)	0.763s	30	1.00x
🐘 Postgres	Express	1.468s (-9.1% 🟢)	2.140s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.169s (-4.8%)	0.701s	28	1.14x
🐘 Postgres	Next.js (Turbopack)	1.603s (-7.2% 🟢)	2.225s (-1.6%)	0.000s (NaN%)	2.247s (-1.0%)	0.644s	27	1.24x
💻 Local	Next.js (Turbopack)	2.746s (-14.6% 🟢)	3.287s (-15.7% 🟢)	0.000s (+34.7% 🔺)	3.290s (-15.6% 🟢)	0.545s	19	2.13x
💻 Local	Nitro	3.180s (+2.1%)	3.901s (~)	0.000s (+75.0% 🔺)	3.904s (~)	0.724s	16	2.47x
💻 Local	Express	3.309s (-0.7%)	3.966s (+3.3%)	0.001s (+66.7% 🔺)	3.969s (+3.3%)	0.660s	16	2.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	4.830s (-31.4% 🟢)	6.389s (-25.5% 🟢)	0.000s (NaN%)	6.814s (-25.0% 🟢)	1.983s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.038s (-2.5%)	6.197s (-7.2% 🟢)	0.000s (-100.0% 🟢)	6.657s (-7.6% 🟢)	1.620s	10	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	15/21
🐘 Postgres	Nitro	16/21
▲ Vercel	Nitro	19/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	20/21
Nitro	🐘 Postgres	16/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-11T10:22:34Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	1264	2	219	1485
✅ 💻 Local Development	1671	0	219	1890
✅ 📦 Local Production	1671	0	219	1890
✅ 🐘 Local Postgres	1671	0	219	1890
✅ 🪟 Windows	135	0	0	135
✅ 📋 Other	769	0	176	945
Total	7181	2	1052	8235

❌ Failed Tests

▲ Vercel Production (2 failed)

astro (1 failed):

outputStreamWorkflow positive startIndex (skips first chunk)

express (1 failed):

fibonacciWorkflow - recursive workflow composition via start() | wrun_01KTV3RAK0WZJ5E3J6CG2TAGHH | 🔍 observability

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro	108	1	26
✅ example	109	0	26
❌ express	108	1	26
✅ fastify	109	0	26
✅ hono	109	0	26
✅ nextjs-turbopack	133	0	2
✅ nextjs-webpack	133	0	2
✅ nitro	109	0	26
✅ nuxt	109	0	26
✅ sveltekit	128	0	7
✅ vite	109	0	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts

…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)

…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx

* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)

VaguelySerious · 2026-06-11T10:22:14Z

Summary

When an E2E Vercel Prod Tests lane fails, CI now fetches the runtime request logs of the deployment under test and uploads them as part of the existing e2e-results-vercel-prod-* artifact, with the most relevant rows echoed into the job log.

Runtime logs are the missing piece when triaging these flakes: the harness already captures workflow run state and event timelines, but not what the deployed functions actually logged (crashes, unhandled rejections, cold-start failures). Today that information is simply lost.

How it works

A new .github/scripts/fetch-e2e-runtime-logs.mjs runs with if: failure() after the test step, using the same request-logs API as vercel logs.
The deployment is shared with concurrent CI runs and a test window can span tens of thousands of request rows, so instead of a bulk dump the script makes targeted queries:
1. an error/fatal-level sweep of the test window (server-side level filter), and
2. a per-failed-run query for each workflow run ID found in the e2e-failures-*.json sidecar (each request row carries a workflowRunId).
Rows are deduped by request ID and written to e2e-runtime-logs-{app}-vercel.json; the aggregation script excludes the new sidecar from vitest-result globbing.
The script never fails the job (exit 0 on any error) and no-ops gracefully when env/sidecars are missing.

Validation

Ran the script locally against the deployment from a real failed lane (E2E Vercel Prod (nitro), run 27291235666, 2026-06-10). It captured 23 targeted rows including the failed test's run — and immediately surfaced the kind of evidence this exists for:

[error] Unhandled Rejection: TypeError: fetch failed
[fatal] Node.js process exited with exit status: 128.

i.e. the deployed function process crashed mid-test — the failure mode addressed by #2336, invisible until now from the CI side.

Empty changeset: CI tooling only, no published packages touched.

🤖 Generated with Claude Code

When the e2e test step fails, fetch the deployment's runtime request logs via the same request-logs API the vercel CLI uses — an error/fatal-level sweep of the test window plus per-failed-run queries keyed by the workflow run IDs from the failures sidecar — and upload them as a job artifact. Runtime logs were the missing diagnostic: the harness records run state and event timelines, but not what the deployed functions logged (crashes, unhandled rejections, cold-start failures). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

vercel · 2026-06-11T10:22:17Z

The latest updates on your projects. Learn more about Vercel for GitHub.

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changeset-bot · 2026-06-11T10:22:20Z

🦋 Changeset detected

Latest commit: 0a43289

The changes in this PR will be included in the next version bump.

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github-actions · 2026-06-11T10:22:30Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.041s (-3.3%)	1.006s (~)	0.965s	10	1.00x
💻 Local	Express	0.048s (+10.2% 🔺)	1.007s (~)	0.960s	10	1.15x
🐘 Postgres	Nitro	0.056s (-11.9% 🟢)	1.012s (~)	0.957s	10	1.35x
🐘 Postgres	Express	0.059s (-10.4% 🟢)	1.012s (~)	0.953s	10	1.43x
💻 Local	Next.js (Turbopack)	0.060s (+9.6% 🔺)	1.006s (~)	0.946s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.062s (-11.7% 🟢)	1.011s (~)	0.949s	10	1.49x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.267s (+2.0%)	2.346s (-3.7%)	2.079s	10	1.00x
▲ Vercel	Next.js (Turbopack)	0.282s (-14.3% 🟢)	2.592s (+10.7% 🔺)	2.310s	10	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.094s (~)	2.006s (~)	0.913s	10	1.00x
💻 Local	Express	1.097s (~)	2.007s (~)	0.909s	10	1.00x
🐘 Postgres	Express	1.103s (+1.0%)	2.010s (~)	0.907s	10	1.01x
🐘 Postgres	Nitro	1.107s (-0.6%)	2.009s (~)	0.903s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.125s (-1.4%)	2.010s (~)	0.884s	10	1.03x
💻 Local	Next.js (Turbopack)	1.130s (+1.9%)	2.006s (~)	0.876s	10	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.695s (+8.2% 🔺)	3.520s (~)	1.825s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.772s (+6.4% 🔺)	3.766s (-7.6% 🟢)	1.994s	10	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.520s (~)	11.023s (~)	0.503s	3	1.00x
🐘 Postgres	Nitro	10.541s (~)	11.019s (~)	0.478s	3	1.00x
🐘 Postgres	Express	10.563s (-1.4%)	11.015s (-3.0%)	0.452s	3	1.00x
💻 Local	Express	10.586s (~)	11.024s (~)	0.438s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.660s (-1.5%)	11.022s (~)	0.362s	3	1.01x
💻 Local	Next.js (Turbopack)	10.771s (+1.6%)	11.024s (~)	0.253s	3	1.02x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	14.355s (+7.8% 🔺)	15.964s (+2.4%)	1.609s	2	1.00x
▲ Vercel	Next.js (Turbopack)	15.120s (+12.0% 🔺)	16.716s (+3.8%)	1.596s	2	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	13.755s (-1.1%)	14.028s (-1.4%)	0.272s	5	1.00x
🐘 Postgres	Nitro	13.800s (~)	14.017s (~)	0.218s	5	1.00x
💻 Local	Nitro	13.804s (+0.6%)	14.026s (~)	0.222s	5	1.00x
🐘 Postgres	Express	13.914s (+0.6%)	14.019s (-1.5%)	0.105s	5	1.01x
🐘 Postgres	Next.js (Turbopack)	14.024s (-3.9%)	14.821s (-1.3%)	0.797s	5	1.02x
💻 Local	Next.js (Turbopack)	14.304s (+2.0%)	15.029s (+2.8%)	0.725s	4	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	22.983s (-9.9% 🟢)	24.662s (-10.7% 🟢)	1.679s	3	1.00x
▲ Vercel	Next.js (Turbopack)	23.428s (-8.2% 🟢)	25.672s (-5.6% 🟢)	2.244s	3	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.350s (-3.0%)	13.016s (-2.2%)	0.665s	7	1.00x
🐘 Postgres	Nitro	12.422s (-2.5%)	13.019s (~)	0.596s	7	1.01x
💻 Local	Nitro	12.439s (~)	13.026s (~)	0.586s	7	1.01x
💻 Local	Express	12.472s (-1.0%)	13.027s (~)	0.554s	7	1.01x
🐘 Postgres	Next.js (Turbopack)	13.101s (-4.8%)	13.730s (-2.1%)	0.629s	7	1.06x
💻 Local	Next.js (Turbopack)	13.657s (+5.5% 🔺)	14.027s (+5.4% 🔺)	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	32.711s (+12.6% 🔺)	34.708s (+10.6% 🔺)	1.997s	3	1.00x
▲ Vercel	Next.js (Turbopack)	33.765s (+14.0% 🔺)	36.258s (+13.8% 🔺)	2.493s	3	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.180s (-1.7%)	2.007s (-0.7%)	0.828s	15	1.00x
💻 Local	Nitro	1.180s (-2.7%)	2.006s (~)	0.826s	15	1.00x
🐘 Postgres	Nitro	1.195s (~)	2.008s (~)	0.813s	15	1.01x
💻 Local	Express	1.264s (~)	2.006s (~)	0.742s	15	1.07x
🐘 Postgres	Next.js (Turbopack)	1.280s (+2.3%)	2.074s (+3.3%)	0.795s	15	1.08x
💻 Local	Next.js (Turbopack)	1.307s (+6.8% 🔺)	2.006s (~)	0.700s	15	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.615s (-5.6% 🟢)	4.027s (-7.2% 🟢)	1.412s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.199s (+19.0% 🔺)	4.592s (+8.8% 🔺)	1.392s	7	1.22x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.245s (-1.1%)	2.007s (~)	0.762s	15	1.00x
🐘 Postgres	Express	1.272s (-4.1%)	2.007s (~)	0.735s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.349s (-4.3%)	2.007s (~)	0.658s	15	1.08x
💻 Local	Nitro	1.715s (+0.6%)	2.006s (-3.2%)	0.291s	15	1.38x
💻 Local	Express	1.748s (-7.1% 🟢)	2.006s (-9.7% 🟢)	0.258s	15	1.40x
💻 Local	Next.js (Turbopack)	1.836s (+6.4% 🔺)	2.074s (+3.4%)	0.238s	15	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.676s (-9.7% 🟢)	5.193s (-16.4% 🟢)	1.517s	6	1.00x
▲ Vercel	Next.js (Turbopack)	4.162s (+1.4%)	5.659s (-7.8% 🟢)	1.496s	6	1.13x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-1.6%)	2.008s (~)	0.625s	15	1.00x
🐘 Postgres	Express	1.402s (+0.6%)	2.007s (~)	0.605s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.596s (-9.3% 🟢)	2.143s (-6.6% 🟢)	0.547s	15	1.15x
💻 Local	Nitro	4.620s (-2.1%)	5.012s (~)	0.391s	6	3.34x
💻 Local	Express	4.638s (-12.5% 🟢)	5.345s (-11.1% 🟢)	0.707s	6	3.35x
💻 Local	Next.js (Turbopack)	5.511s (+25.4% 🔺)	6.013s (+20.0% 🔺)	0.501s	5	3.98x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.462s (-18.9% 🟢)	7.360s (-15.5% 🟢)	1.898s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.898s (+17.5% 🔺)	8.815s (+13.3% 🔺)	1.917s	4	1.26x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.187s (-1.1%)	2.008s (~)	0.821s	15	1.00x
🐘 Postgres	Express	1.188s (-1.2%)	2.008s (~)	0.820s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.200s (-5.2% 🟢)	2.009s (~)	0.808s	15	1.01x
💻 Local	Next.js (Turbopack)	1.340s (+2.6%)	2.007s (~)	0.667s	15	1.13x
💻 Local	Nitro	1.485s (-3.8%)	2.006s (~)	0.521s	15	1.25x
💻 Local	Express	1.507s (-9.0% 🟢)	2.007s (-3.2%)	0.500s	15	1.27x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.456s (-8.1% 🟢)	3.852s (-11.1% 🟢)	1.396s	8	1.00x
▲ Vercel	Next.js (Turbopack)	2.655s (-39.3% 🟢)	4.323s (-31.3% 🟢)	1.668s	7	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.235s (-3.1%)	2.008s (~)	0.772s	15	1.00x
🐘 Postgres	Express	1.250s (+0.5%)	2.009s (~)	0.759s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.316s (-5.8% 🟢)	2.007s (~)	0.690s	15	1.07x
💻 Local	Next.js (Turbopack)	2.020s (~)	2.592s (+3.4%)	0.572s	12	1.63x
💻 Local	Nitro	2.031s (+15.6% 🔺)	2.591s (+25.0% 🔺)	0.560s	12	1.64x
💻 Local	Express	2.040s (-4.0%)	2.470s (-4.6%)	0.430s	13	1.65x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	3.367s (-25.5% 🟢)	4.908s (-20.4% 🟢)	1.541s	7	1.00x
▲ Vercel	Nitro	3.602s (-12.0% 🟢)	5.404s (-10.0% 🟢)	1.802s	6	1.07x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.378s (-5.7% 🟢)	2.007s (~)	0.629s	15	1.00x
🐘 Postgres	Express	1.400s (-6.7% 🟢)	2.008s (-16.2% 🟢)	0.608s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.616s (-2.4%)	2.151s (+3.7%)	0.535s	14	1.17x
💻 Local	Express	5.184s (-11.6% 🟢)	5.848s (-5.9% 🟢)	0.664s	6	3.76x
💻 Local	Nitro	5.367s (+13.2% 🔺)	6.015s (+12.6% 🔺)	0.648s	6	3.89x
💻 Local	Next.js (Turbopack)	5.729s (+11.0% 🔺)	6.414s (+6.6% 🔺)	0.685s	5	4.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.785s (+17.3% 🔺)	7.247s (+7.6% 🔺)	1.462s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.222s (+7.4% 🔺)	8.268s (+9.1% 🔺)	2.046s	4	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.566s (-7.0% 🟢)	1.023s (+1.6%)	0.457s	59	1.00x
🐘 Postgres	Express	0.569s (-14.6% 🟢)	1.041s (-0.6%)	0.472s	58	1.01x
💻 Local	Nitro	0.583s (-27.6% 🟢)	1.005s (-16.6% 🟢)	0.422s	60	1.03x
💻 Local	Express	0.598s (-8.8% 🟢)	1.005s (-3.3%)	0.407s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.664s (-18.3% 🟢)	1.023s (+1.7%)	0.360s	59	1.17x
💻 Local	Next.js (Turbopack)	0.850s (+22.1% 🔺)	1.005s (~)	0.155s	60	1.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.519s (-26.0% 🟢)	6.990s (-26.6% 🟢)	1.471s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.864s (+16.2% 🔺)	7.891s (+15.2% 🔺)	2.027s	8	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.315s (-7.2% 🟢)	2.008s (~)	0.693s	45	1.00x
🐘 Postgres	Express	1.382s (-10.0% 🟢)	2.029s (-5.7% 🟢)	0.647s	45	1.05x
💻 Local	Nitro	1.516s (+3.6%)	2.006s (~)	0.490s	45	1.15x
💻 Local	Express	1.542s (-3.1%)	2.007s (-1.1%)	0.465s	45	1.17x
🐘 Postgres	Next.js (Turbopack)	1.576s (-18.9% 🟢)	2.007s (-7.7% 🟢)	0.431s	45	1.20x
💻 Local	Next.js (Turbopack)	2.054s (+18.8% 🔺)	3.008s (+48.3% 🔺)	0.954s	30	1.56x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	13.967s (+5.7% 🔺)	15.727s (+1.6%)	1.760s	6	1.00x
▲ Vercel	Next.js (Turbopack)	15.435s (+4.5%)	17.236s (+1.8%)	1.801s	6	1.11x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.584s (-11.3% 🟢)	3.034s (-7.5% 🟢)	0.449s	40	1.00x
🐘 Postgres	Express	2.692s (-7.5% 🟢)	3.136s (-11.4% 🟢)	0.444s	39	1.04x
🐘 Postgres	Next.js (Turbopack)	3.127s (-19.0% 🟢)	4.009s (-1.7%)	0.882s	30	1.21x
💻 Local	Nitro	3.272s (+2.1%)	3.978s (-0.8%)	0.705s	31	1.27x
💻 Local	Express	3.337s (-2.4%)	4.010s (~)	0.673s	30	1.29x
💻 Local	Next.js (Turbopack)	4.322s (+15.9% 🔺)	5.010s (+21.9% 🔺)	0.688s	24	1.67x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	26.486s (-11.1% 🟢)	28.519s (-10.8% 🟢)	2.033s	5	1.00x
▲ Vercel	Next.js (Turbopack)	29.701s (+10.1% 🔺)	32.280s (+10.3% 🔺)	2.579s	4	1.12x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.215s (-8.5% 🟢)	1.006s (~)	0.791s	60	1.00x
🐘 Postgres	Express	0.221s (-12.3% 🟢)	1.006s (~)	0.785s	60	1.03x
🐘 Postgres	Next.js (Turbopack)	0.240s (-15.0% 🟢)	1.006s (~)	0.766s	60	1.11x
💻 Local	Nitro	0.466s (+9.8% 🔺)	1.022s (+1.8%)	0.556s	59	2.16x
💻 Local	Express	0.469s (+1.0%)	1.005s (~)	0.535s	60	2.18x
💻 Local	Next.js (Turbopack)	0.581s (-4.9%)	1.005s (-3.3%)	0.424s	60	2.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	2.282s (+3.7%)	3.811s (-9.7% 🟢)	1.530s	16	1.00x
▲ Vercel	Nitro	2.283s (-2.6%)	3.784s (-12.7% 🟢)	1.501s	16	1.00x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.337s (-9.1% 🟢)	1.007s (~)	0.669s	90	1.00x
🐘 Postgres	Express	0.346s (+2.2%)	1.007s (~)	0.660s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.419s (-13.1% 🟢)	1.006s (~)	0.587s	90	1.24x
💻 Local	Nitro	2.112s (+2.3%)	2.580s (-2.2%)	0.469s	35	6.26x
💻 Local	Express	2.217s (+1.2%)	2.797s (-0.9%)	0.580s	33	6.58x
💻 Local	Next.js (Turbopack)	2.325s (-5.1% 🟢)	3.009s (-3.2%)	0.684s	30	6.90x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.265s (-88.0% 🟢)	6.802s (-85.2% 🟢)	1.536s	14	1.00x
▲ Vercel	Next.js (Turbopack)	5.662s (-9.7% 🟢)	7.304s (-14.0% 🟢)	1.641s	13	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.662s (-6.4% 🟢)	1.007s (~)	0.345s	120	1.00x
🐘 Postgres	Express	0.666s (+6.4% 🔺)	1.006s (-4.6%)	0.341s	120	1.01x
🐘 Postgres	Next.js (Turbopack)	0.817s (-16.6% 🟢)	1.006s (-37.4% 🟢)	0.189s	120	1.23x
💻 Local	Nitro	9.727s (+11.7% 🔺)	10.194s (+9.2% 🔺)	0.467s	12	14.69x
💻 Local	Express	9.905s (-4.0%)	10.446s (-3.9%)	0.540s	12	14.96x
💻 Local	Next.js (Turbopack)	10.259s (-0.5%)	10.936s (-3.2%)	0.677s	11	15.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	15.846s (-94.9% 🟢)	17.641s (-94.4% 🟢)	1.795s	8	1.00x
▲ Vercel	Next.js (Turbopack)	18.329s (-88.5% 🟢)	20.381s (-87.4% 🟢)	2.052s	6	1.16x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.157s (-3.1%)	2.001s (~)	0.001s (-97.7% 🟢)	2.011s (-1.6%)	0.854s	10	1.00x
💻 Local	Express	1.162s (-0.5%)	2.005s (~)	0.011s (-18.0% 🟢)	2.018s (~)	0.856s	10	1.00x
💻 Local	Nitro	1.164s (+1.2%)	2.005s (~)	0.011s (+5.0%)	2.018s (~)	0.853s	10	1.01x
🐘 Postgres	Nitro	1.169s (-1.0%)	1.997s (~)	0.001s (-21.4% 🟢)	2.010s (~)	0.840s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.202s (-2.6%)	2.000s (~)	0.001s (-13.3% 🟢)	2.010s (~)	0.807s	10	1.04x
💻 Local	Next.js (Turbopack)	1.208s (+3.4%)	2.004s (~)	0.012s (+18.8% 🔺)	2.020s (~)	0.812s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.560s (+18.3% 🔺)	3.481s (+1.9%)	1.422s (+175.7% 🔺)	5.458s (+22.1% 🔺)	2.898s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.635s (+17.5% 🔺)	3.564s (~)	1.068s (-91.4% 🟢)	5.102s (-69.1% 🟢)	2.467s	10	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.571s (-9.6% 🟢)	2.002s (-6.6% 🟢)	0.005s (+75.1% 🔺)	2.027s (-6.2% 🟢)	0.456s	30	1.00x
🐘 Postgres	Nitro	1.572s (-5.5% 🟢)	2.003s (~)	0.005s (+34.2% 🔺)	2.028s (~)	0.456s	30	1.00x
💻 Local	Nitro	1.581s (-9.3% 🟢)	2.010s (~)	0.013s (+42.7% 🔺)	2.026s (-7.9% 🟢)	0.445s	30	1.01x
💻 Local	Express	1.600s (-2.2%)	2.011s (~)	0.014s (+26.9% 🔺)	2.027s (~)	0.427s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.648s (-6.5% 🟢)	2.009s (~)	0.004s (+8.3% 🔺)	2.025s (~)	0.376s	30	1.05x
💻 Local	Next.js (Turbopack)	1.717s (+4.6%)	2.009s (~)	0.013s (+29.4% 🔺)	2.025s (~)	0.308s	30	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.716s (-0.5%)	6.856s (-9.8% 🟢)	0.237s (-29.9% 🟢)	7.551s (-11.0% 🟢)	1.835s	8	1.00x
▲ Vercel	Next.js (Turbopack)	5.946s (-6.7% 🟢)	7.117s (-10.3% 🟢)	0.202s (-44.2% 🟢)	7.771s (-12.3% 🟢)	1.825s	8	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.663s (-8.2% 🟢)	1.011s (-1.9%)	0.000s (-67.2% 🟢)	1.024s (-2.2%)	0.361s	59	1.00x
🐘 Postgres	Express	0.692s (-29.2% 🟢)	1.012s (-29.1% 🟢)	0.000s (-52.5% 🟢)	1.033s (-28.7% 🟢)	0.340s	59	1.04x
🐘 Postgres	Next.js (Turbopack)	0.818s (-1.8%)	1.071s (~)	0.000s (-1.8%)	1.078s (~)	0.260s	57	1.23x
💻 Local	Nitro	1.408s (+4.1%)	2.013s (~)	0.000s (-33.3% 🟢)	2.016s (~)	0.607s	30	2.12x
💻 Local	Next.js (Turbopack)	1.448s (~)	2.013s (~)	0.000s (-37.5% 🟢)	2.016s (~)	0.568s	30	2.18x
💻 Local	Express	1.450s (-2.2%)	2.014s (~)	0.000s (-6.7% 🟢)	2.017s (~)	0.567s	30	2.19x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.079s (-14.5% 🟢)	4.197s (-17.2% 🟢)	0.000s (NaN%)	4.623s (-17.9% 🟢)	1.544s	13	1.00x
▲ Vercel	Next.js (Turbopack)	3.151s (-4.8%)	4.387s (-10.4% 🟢)	0.000s (NaN%)	4.831s (-11.5% 🟢)	1.680s	13	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.289s (-8.6% 🟢)	2.034s (+1.9%)	0.000s (NaN%)	2.052s (+2.0%)	0.763s	30	1.00x
🐘 Postgres	Express	1.468s (-9.1% 🟢)	2.140s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.169s (-4.8%)	0.701s	28	1.14x
🐘 Postgres	Next.js (Turbopack)	1.603s (-7.2% 🟢)	2.225s (-1.6%)	0.000s (NaN%)	2.247s (-1.0%)	0.644s	27	1.24x
💻 Local	Next.js (Turbopack)	2.746s (-14.6% 🟢)	3.287s (-15.7% 🟢)	0.000s (+34.7% 🔺)	3.290s (-15.6% 🟢)	0.545s	19	2.13x
💻 Local	Nitro	3.180s (+2.1%)	3.901s (~)	0.000s (+75.0% 🔺)	3.904s (~)	0.724s	16	2.47x
💻 Local	Express	3.309s (-0.7%)	3.966s (+3.3%)	0.001s (+66.7% 🔺)	3.969s (+3.3%)	0.660s	16	2.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	4.830s (-31.4% 🟢)	6.389s (-25.5% 🟢)	0.000s (NaN%)	6.814s (-25.0% 🟢)	1.983s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.038s (-2.5%)	6.197s (-7.2% 🟢)	0.000s (-100.0% 🟢)	6.657s (-7.6% 🟢)	1.620s	10	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	15/21
🐘 Postgres	Nitro	16/21
▲ Vercel	Nitro	19/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	20/21
Nitro	🐘 Postgres	16/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-11T10:22:34Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	1264	2	219	1485
✅ 💻 Local Development	1671	0	219	1890
✅ 📦 Local Production	1671	0	219	1890
✅ 🐘 Local Postgres	1671	0	219	1890
✅ 🪟 Windows	135	0	0	135
✅ 📋 Other	769	0	176	945
Total	7181	2	1052	8235

❌ Failed Tests

▲ Vercel Production (2 failed)

astro (1 failed):

outputStreamWorkflow positive startIndex (skips first chunk)

express (1 failed):

fibonacciWorkflow - recursive workflow composition via start() | wrun_01KTV3RAK0WZJ5E3J6CG2TAGHH | 🔍 observability

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro	108	1	26
✅ example	109	0	26
❌ express	108	1	26
✅ fastify	109	0	26
✅ hono	109	0	26
✅ nextjs-turbopack	133	0	2
✅ nextjs-webpack	133	0	2
✅ nitro	109	0	26
✅ nuxt	109	0	26
✅ sveltekit	128	0	7
✅ vite	109	0	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts

…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)

…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx

* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)

VaguelySerious · 2026-06-11T10:22:14Z

Summary

When an E2E Vercel Prod Tests lane fails, CI now fetches the runtime request logs of the deployment under test and uploads them as part of the existing e2e-results-vercel-prod-* artifact, with the most relevant rows echoed into the job log.

Runtime logs are the missing piece when triaging these flakes: the harness already captures workflow run state and event timelines, but not what the deployed functions actually logged (crashes, unhandled rejections, cold-start failures). Today that information is simply lost.

How it works

A new .github/scripts/fetch-e2e-runtime-logs.mjs runs with if: failure() after the test step, using the same request-logs API as vercel logs.
The deployment is shared with concurrent CI runs and a test window can span tens of thousands of request rows, so instead of a bulk dump the script makes targeted queries:
1. an error/fatal-level sweep of the test window (server-side level filter), and
2. a per-failed-run query for each workflow run ID found in the e2e-failures-*.json sidecar (each request row carries a workflowRunId).
Rows are deduped by request ID and written to e2e-runtime-logs-{app}-vercel.json; the aggregation script excludes the new sidecar from vitest-result globbing.
The script never fails the job (exit 0 on any error) and no-ops gracefully when env/sidecars are missing.

Validation

Ran the script locally against the deployment from a real failed lane (E2E Vercel Prod (nitro), run 27291235666, 2026-06-10). It captured 23 targeted rows including the failed test's run — and immediately surfaced the kind of evidence this exists for:

[error] Unhandled Rejection: TypeError: fetch failed
[fatal] Node.js process exited with exit status: 128.

i.e. the deployed function process crashed mid-test — the failure mode addressed by #2336, invisible until now from the CI side.

Empty changeset: CI tooling only, no published packages touched.

🤖 Generated with Claude Code

When the e2e test step fails, fetch the deployment's runtime request logs via the same request-logs API the vercel CLI uses — an error/fatal-level sweep of the test window plus per-failed-run queries keyed by the workflow run IDs from the failures sidecar — and upload them as a job artifact. Runtime logs were the missing diagnostic: the harness records run state and event timelines, but not what the deployed functions logged (crashes, unhandled rejections, cold-start failures). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

vercel · 2026-06-11T10:22:17Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-nextjs-workflow-webpack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-astro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-express-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-fastify-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-hono-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nitro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nuxt-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-sveltekit-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-tanstack-start-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-vite-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-docs	Ready	Preview, Comment, Open in v0	Jun 11, 2026 10:25am
workflow-swc-playground	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-tarballs	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-web	Ready	Preview, Comment	Jun 11, 2026 10:25am

changeset-bot · 2026-06-11T10:22:20Z

🦋 Changeset detected

Latest commit: 0a43289

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

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github-actions · 2026-06-11T10:22:30Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.041s (-3.3%)	1.006s (~)	0.965s	10	1.00x
💻 Local	Express	0.048s (+10.2% 🔺)	1.007s (~)	0.960s	10	1.15x
🐘 Postgres	Nitro	0.056s (-11.9% 🟢)	1.012s (~)	0.957s	10	1.35x
🐘 Postgres	Express	0.059s (-10.4% 🟢)	1.012s (~)	0.953s	10	1.43x
💻 Local	Next.js (Turbopack)	0.060s (+9.6% 🔺)	1.006s (~)	0.946s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.062s (-11.7% 🟢)	1.011s (~)	0.949s	10	1.49x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.267s (+2.0%)	2.346s (-3.7%)	2.079s	10	1.00x
▲ Vercel	Next.js (Turbopack)	0.282s (-14.3% 🟢)	2.592s (+10.7% 🔺)	2.310s	10	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.094s (~)	2.006s (~)	0.913s	10	1.00x
💻 Local	Express	1.097s (~)	2.007s (~)	0.909s	10	1.00x
🐘 Postgres	Express	1.103s (+1.0%)	2.010s (~)	0.907s	10	1.01x
🐘 Postgres	Nitro	1.107s (-0.6%)	2.009s (~)	0.903s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.125s (-1.4%)	2.010s (~)	0.884s	10	1.03x
💻 Local	Next.js (Turbopack)	1.130s (+1.9%)	2.006s (~)	0.876s	10	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.695s (+8.2% 🔺)	3.520s (~)	1.825s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.772s (+6.4% 🔺)	3.766s (-7.6% 🟢)	1.994s	10	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.520s (~)	11.023s (~)	0.503s	3	1.00x
🐘 Postgres	Nitro	10.541s (~)	11.019s (~)	0.478s	3	1.00x
🐘 Postgres	Express	10.563s (-1.4%)	11.015s (-3.0%)	0.452s	3	1.00x
💻 Local	Express	10.586s (~)	11.024s (~)	0.438s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.660s (-1.5%)	11.022s (~)	0.362s	3	1.01x
💻 Local	Next.js (Turbopack)	10.771s (+1.6%)	11.024s (~)	0.253s	3	1.02x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	14.355s (+7.8% 🔺)	15.964s (+2.4%)	1.609s	2	1.00x
▲ Vercel	Next.js (Turbopack)	15.120s (+12.0% 🔺)	16.716s (+3.8%)	1.596s	2	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	13.755s (-1.1%)	14.028s (-1.4%)	0.272s	5	1.00x
🐘 Postgres	Nitro	13.800s (~)	14.017s (~)	0.218s	5	1.00x
💻 Local	Nitro	13.804s (+0.6%)	14.026s (~)	0.222s	5	1.00x
🐘 Postgres	Express	13.914s (+0.6%)	14.019s (-1.5%)	0.105s	5	1.01x
🐘 Postgres	Next.js (Turbopack)	14.024s (-3.9%)	14.821s (-1.3%)	0.797s	5	1.02x
💻 Local	Next.js (Turbopack)	14.304s (+2.0%)	15.029s (+2.8%)	0.725s	4	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	22.983s (-9.9% 🟢)	24.662s (-10.7% 🟢)	1.679s	3	1.00x
▲ Vercel	Next.js (Turbopack)	23.428s (-8.2% 🟢)	25.672s (-5.6% 🟢)	2.244s	3	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.350s (-3.0%)	13.016s (-2.2%)	0.665s	7	1.00x
🐘 Postgres	Nitro	12.422s (-2.5%)	13.019s (~)	0.596s	7	1.01x
💻 Local	Nitro	12.439s (~)	13.026s (~)	0.586s	7	1.01x
💻 Local	Express	12.472s (-1.0%)	13.027s (~)	0.554s	7	1.01x
🐘 Postgres	Next.js (Turbopack)	13.101s (-4.8%)	13.730s (-2.1%)	0.629s	7	1.06x
💻 Local	Next.js (Turbopack)	13.657s (+5.5% 🔺)	14.027s (+5.4% 🔺)	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	32.711s (+12.6% 🔺)	34.708s (+10.6% 🔺)	1.997s	3	1.00x
▲ Vercel	Next.js (Turbopack)	33.765s (+14.0% 🔺)	36.258s (+13.8% 🔺)	2.493s	3	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.180s (-1.7%)	2.007s (-0.7%)	0.828s	15	1.00x
💻 Local	Nitro	1.180s (-2.7%)	2.006s (~)	0.826s	15	1.00x
🐘 Postgres	Nitro	1.195s (~)	2.008s (~)	0.813s	15	1.01x
💻 Local	Express	1.264s (~)	2.006s (~)	0.742s	15	1.07x
🐘 Postgres	Next.js (Turbopack)	1.280s (+2.3%)	2.074s (+3.3%)	0.795s	15	1.08x
💻 Local	Next.js (Turbopack)	1.307s (+6.8% 🔺)	2.006s (~)	0.700s	15	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.615s (-5.6% 🟢)	4.027s (-7.2% 🟢)	1.412s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.199s (+19.0% 🔺)	4.592s (+8.8% 🔺)	1.392s	7	1.22x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.245s (-1.1%)	2.007s (~)	0.762s	15	1.00x
🐘 Postgres	Express	1.272s (-4.1%)	2.007s (~)	0.735s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.349s (-4.3%)	2.007s (~)	0.658s	15	1.08x
💻 Local	Nitro	1.715s (+0.6%)	2.006s (-3.2%)	0.291s	15	1.38x
💻 Local	Express	1.748s (-7.1% 🟢)	2.006s (-9.7% 🟢)	0.258s	15	1.40x
💻 Local	Next.js (Turbopack)	1.836s (+6.4% 🔺)	2.074s (+3.4%)	0.238s	15	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.676s (-9.7% 🟢)	5.193s (-16.4% 🟢)	1.517s	6	1.00x
▲ Vercel	Next.js (Turbopack)	4.162s (+1.4%)	5.659s (-7.8% 🟢)	1.496s	6	1.13x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-1.6%)	2.008s (~)	0.625s	15	1.00x
🐘 Postgres	Express	1.402s (+0.6%)	2.007s (~)	0.605s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.596s (-9.3% 🟢)	2.143s (-6.6% 🟢)	0.547s	15	1.15x
💻 Local	Nitro	4.620s (-2.1%)	5.012s (~)	0.391s	6	3.34x
💻 Local	Express	4.638s (-12.5% 🟢)	5.345s (-11.1% 🟢)	0.707s	6	3.35x
💻 Local	Next.js (Turbopack)	5.511s (+25.4% 🔺)	6.013s (+20.0% 🔺)	0.501s	5	3.98x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.462s (-18.9% 🟢)	7.360s (-15.5% 🟢)	1.898s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.898s (+17.5% 🔺)	8.815s (+13.3% 🔺)	1.917s	4	1.26x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.187s (-1.1%)	2.008s (~)	0.821s	15	1.00x
🐘 Postgres	Express	1.188s (-1.2%)	2.008s (~)	0.820s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.200s (-5.2% 🟢)	2.009s (~)	0.808s	15	1.01x
💻 Local	Next.js (Turbopack)	1.340s (+2.6%)	2.007s (~)	0.667s	15	1.13x
💻 Local	Nitro	1.485s (-3.8%)	2.006s (~)	0.521s	15	1.25x
💻 Local	Express	1.507s (-9.0% 🟢)	2.007s (-3.2%)	0.500s	15	1.27x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.456s (-8.1% 🟢)	3.852s (-11.1% 🟢)	1.396s	8	1.00x
▲ Vercel	Next.js (Turbopack)	2.655s (-39.3% 🟢)	4.323s (-31.3% 🟢)	1.668s	7	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.235s (-3.1%)	2.008s (~)	0.772s	15	1.00x
🐘 Postgres	Express	1.250s (+0.5%)	2.009s (~)	0.759s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.316s (-5.8% 🟢)	2.007s (~)	0.690s	15	1.07x
💻 Local	Next.js (Turbopack)	2.020s (~)	2.592s (+3.4%)	0.572s	12	1.63x
💻 Local	Nitro	2.031s (+15.6% 🔺)	2.591s (+25.0% 🔺)	0.560s	12	1.64x
💻 Local	Express	2.040s (-4.0%)	2.470s (-4.6%)	0.430s	13	1.65x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	3.367s (-25.5% 🟢)	4.908s (-20.4% 🟢)	1.541s	7	1.00x
▲ Vercel	Nitro	3.602s (-12.0% 🟢)	5.404s (-10.0% 🟢)	1.802s	6	1.07x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.378s (-5.7% 🟢)	2.007s (~)	0.629s	15	1.00x
🐘 Postgres	Express	1.400s (-6.7% 🟢)	2.008s (-16.2% 🟢)	0.608s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.616s (-2.4%)	2.151s (+3.7%)	0.535s	14	1.17x
💻 Local	Express	5.184s (-11.6% 🟢)	5.848s (-5.9% 🟢)	0.664s	6	3.76x
💻 Local	Nitro	5.367s (+13.2% 🔺)	6.015s (+12.6% 🔺)	0.648s	6	3.89x
💻 Local	Next.js (Turbopack)	5.729s (+11.0% 🔺)	6.414s (+6.6% 🔺)	0.685s	5	4.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.785s (+17.3% 🔺)	7.247s (+7.6% 🔺)	1.462s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.222s (+7.4% 🔺)	8.268s (+9.1% 🔺)	2.046s	4	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.566s (-7.0% 🟢)	1.023s (+1.6%)	0.457s	59	1.00x
🐘 Postgres	Express	0.569s (-14.6% 🟢)	1.041s (-0.6%)	0.472s	58	1.01x
💻 Local	Nitro	0.583s (-27.6% 🟢)	1.005s (-16.6% 🟢)	0.422s	60	1.03x
💻 Local	Express	0.598s (-8.8% 🟢)	1.005s (-3.3%)	0.407s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.664s (-18.3% 🟢)	1.023s (+1.7%)	0.360s	59	1.17x
💻 Local	Next.js (Turbopack)	0.850s (+22.1% 🔺)	1.005s (~)	0.155s	60	1.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.519s (-26.0% 🟢)	6.990s (-26.6% 🟢)	1.471s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.864s (+16.2% 🔺)	7.891s (+15.2% 🔺)	2.027s	8	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.315s (-7.2% 🟢)	2.008s (~)	0.693s	45	1.00x
🐘 Postgres	Express	1.382s (-10.0% 🟢)	2.029s (-5.7% 🟢)	0.647s	45	1.05x
💻 Local	Nitro	1.516s (+3.6%)	2.006s (~)	0.490s	45	1.15x
💻 Local	Express	1.542s (-3.1%)	2.007s (-1.1%)	0.465s	45	1.17x
🐘 Postgres	Next.js (Turbopack)	1.576s (-18.9% 🟢)	2.007s (-7.7% 🟢)	0.431s	45	1.20x
💻 Local	Next.js (Turbopack)	2.054s (+18.8% 🔺)	3.008s (+48.3% 🔺)	0.954s	30	1.56x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	13.967s (+5.7% 🔺)	15.727s (+1.6%)	1.760s	6	1.00x
▲ Vercel	Next.js (Turbopack)	15.435s (+4.5%)	17.236s (+1.8%)	1.801s	6	1.11x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.584s (-11.3% 🟢)	3.034s (-7.5% 🟢)	0.449s	40	1.00x
🐘 Postgres	Express	2.692s (-7.5% 🟢)	3.136s (-11.4% 🟢)	0.444s	39	1.04x
🐘 Postgres	Next.js (Turbopack)	3.127s (-19.0% 🟢)	4.009s (-1.7%)	0.882s	30	1.21x
💻 Local	Nitro	3.272s (+2.1%)	3.978s (-0.8%)	0.705s	31	1.27x
💻 Local	Express	3.337s (-2.4%)	4.010s (~)	0.673s	30	1.29x
💻 Local	Next.js (Turbopack)	4.322s (+15.9% 🔺)	5.010s (+21.9% 🔺)	0.688s	24	1.67x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	26.486s (-11.1% 🟢)	28.519s (-10.8% 🟢)	2.033s	5	1.00x
▲ Vercel	Next.js (Turbopack)	29.701s (+10.1% 🔺)	32.280s (+10.3% 🔺)	2.579s	4	1.12x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.215s (-8.5% 🟢)	1.006s (~)	0.791s	60	1.00x
🐘 Postgres	Express	0.221s (-12.3% 🟢)	1.006s (~)	0.785s	60	1.03x
🐘 Postgres	Next.js (Turbopack)	0.240s (-15.0% 🟢)	1.006s (~)	0.766s	60	1.11x
💻 Local	Nitro	0.466s (+9.8% 🔺)	1.022s (+1.8%)	0.556s	59	2.16x
💻 Local	Express	0.469s (+1.0%)	1.005s (~)	0.535s	60	2.18x
💻 Local	Next.js (Turbopack)	0.581s (-4.9%)	1.005s (-3.3%)	0.424s	60	2.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	2.282s (+3.7%)	3.811s (-9.7% 🟢)	1.530s	16	1.00x
▲ Vercel	Nitro	2.283s (-2.6%)	3.784s (-12.7% 🟢)	1.501s	16	1.00x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.337s (-9.1% 🟢)	1.007s (~)	0.669s	90	1.00x
🐘 Postgres	Express	0.346s (+2.2%)	1.007s (~)	0.660s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.419s (-13.1% 🟢)	1.006s (~)	0.587s	90	1.24x
💻 Local	Nitro	2.112s (+2.3%)	2.580s (-2.2%)	0.469s	35	6.26x
💻 Local	Express	2.217s (+1.2%)	2.797s (-0.9%)	0.580s	33	6.58x
💻 Local	Next.js (Turbopack)	2.325s (-5.1% 🟢)	3.009s (-3.2%)	0.684s	30	6.90x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.265s (-88.0% 🟢)	6.802s (-85.2% 🟢)	1.536s	14	1.00x
▲ Vercel	Next.js (Turbopack)	5.662s (-9.7% 🟢)	7.304s (-14.0% 🟢)	1.641s	13	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.662s (-6.4% 🟢)	1.007s (~)	0.345s	120	1.00x
🐘 Postgres	Express	0.666s (+6.4% 🔺)	1.006s (-4.6%)	0.341s	120	1.01x
🐘 Postgres	Next.js (Turbopack)	0.817s (-16.6% 🟢)	1.006s (-37.4% 🟢)	0.189s	120	1.23x
💻 Local	Nitro	9.727s (+11.7% 🔺)	10.194s (+9.2% 🔺)	0.467s	12	14.69x
💻 Local	Express	9.905s (-4.0%)	10.446s (-3.9%)	0.540s	12	14.96x
💻 Local	Next.js (Turbopack)	10.259s (-0.5%)	10.936s (-3.2%)	0.677s	11	15.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	15.846s (-94.9% 🟢)	17.641s (-94.4% 🟢)	1.795s	8	1.00x
▲ Vercel	Next.js (Turbopack)	18.329s (-88.5% 🟢)	20.381s (-87.4% 🟢)	2.052s	6	1.16x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.157s (-3.1%)	2.001s (~)	0.001s (-97.7% 🟢)	2.011s (-1.6%)	0.854s	10	1.00x
💻 Local	Express	1.162s (-0.5%)	2.005s (~)	0.011s (-18.0% 🟢)	2.018s (~)	0.856s	10	1.00x
💻 Local	Nitro	1.164s (+1.2%)	2.005s (~)	0.011s (+5.0%)	2.018s (~)	0.853s	10	1.01x
🐘 Postgres	Nitro	1.169s (-1.0%)	1.997s (~)	0.001s (-21.4% 🟢)	2.010s (~)	0.840s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.202s (-2.6%)	2.000s (~)	0.001s (-13.3% 🟢)	2.010s (~)	0.807s	10	1.04x
💻 Local	Next.js (Turbopack)	1.208s (+3.4%)	2.004s (~)	0.012s (+18.8% 🔺)	2.020s (~)	0.812s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.560s (+18.3% 🔺)	3.481s (+1.9%)	1.422s (+175.7% 🔺)	5.458s (+22.1% 🔺)	2.898s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.635s (+17.5% 🔺)	3.564s (~)	1.068s (-91.4% 🟢)	5.102s (-69.1% 🟢)	2.467s	10	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.571s (-9.6% 🟢)	2.002s (-6.6% 🟢)	0.005s (+75.1% 🔺)	2.027s (-6.2% 🟢)	0.456s	30	1.00x
🐘 Postgres	Nitro	1.572s (-5.5% 🟢)	2.003s (~)	0.005s (+34.2% 🔺)	2.028s (~)	0.456s	30	1.00x
💻 Local	Nitro	1.581s (-9.3% 🟢)	2.010s (~)	0.013s (+42.7% 🔺)	2.026s (-7.9% 🟢)	0.445s	30	1.01x
💻 Local	Express	1.600s (-2.2%)	2.011s (~)	0.014s (+26.9% 🔺)	2.027s (~)	0.427s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.648s (-6.5% 🟢)	2.009s (~)	0.004s (+8.3% 🔺)	2.025s (~)	0.376s	30	1.05x
💻 Local	Next.js (Turbopack)	1.717s (+4.6%)	2.009s (~)	0.013s (+29.4% 🔺)	2.025s (~)	0.308s	30	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.716s (-0.5%)	6.856s (-9.8% 🟢)	0.237s (-29.9% 🟢)	7.551s (-11.0% 🟢)	1.835s	8	1.00x
▲ Vercel	Next.js (Turbopack)	5.946s (-6.7% 🟢)	7.117s (-10.3% 🟢)	0.202s (-44.2% 🟢)	7.771s (-12.3% 🟢)	1.825s	8	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.663s (-8.2% 🟢)	1.011s (-1.9%)	0.000s (-67.2% 🟢)	1.024s (-2.2%)	0.361s	59	1.00x
🐘 Postgres	Express	0.692s (-29.2% 🟢)	1.012s (-29.1% 🟢)	0.000s (-52.5% 🟢)	1.033s (-28.7% 🟢)	0.340s	59	1.04x
🐘 Postgres	Next.js (Turbopack)	0.818s (-1.8%)	1.071s (~)	0.000s (-1.8%)	1.078s (~)	0.260s	57	1.23x
💻 Local	Nitro	1.408s (+4.1%)	2.013s (~)	0.000s (-33.3% 🟢)	2.016s (~)	0.607s	30	2.12x
💻 Local	Next.js (Turbopack)	1.448s (~)	2.013s (~)	0.000s (-37.5% 🟢)	2.016s (~)	0.568s	30	2.18x
💻 Local	Express	1.450s (-2.2%)	2.014s (~)	0.000s (-6.7% 🟢)	2.017s (~)	0.567s	30	2.19x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.079s (-14.5% 🟢)	4.197s (-17.2% 🟢)	0.000s (NaN%)	4.623s (-17.9% 🟢)	1.544s	13	1.00x
▲ Vercel	Next.js (Turbopack)	3.151s (-4.8%)	4.387s (-10.4% 🟢)	0.000s (NaN%)	4.831s (-11.5% 🟢)	1.680s	13	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.289s (-8.6% 🟢)	2.034s (+1.9%)	0.000s (NaN%)	2.052s (+2.0%)	0.763s	30	1.00x
🐘 Postgres	Express	1.468s (-9.1% 🟢)	2.140s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.169s (-4.8%)	0.701s	28	1.14x
🐘 Postgres	Next.js (Turbopack)	1.603s (-7.2% 🟢)	2.225s (-1.6%)	0.000s (NaN%)	2.247s (-1.0%)	0.644s	27	1.24x
💻 Local	Next.js (Turbopack)	2.746s (-14.6% 🟢)	3.287s (-15.7% 🟢)	0.000s (+34.7% 🔺)	3.290s (-15.6% 🟢)	0.545s	19	2.13x
💻 Local	Nitro	3.180s (+2.1%)	3.901s (~)	0.000s (+75.0% 🔺)	3.904s (~)	0.724s	16	2.47x
💻 Local	Express	3.309s (-0.7%)	3.966s (+3.3%)	0.001s (+66.7% 🔺)	3.969s (+3.3%)	0.660s	16	2.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	4.830s (-31.4% 🟢)	6.389s (-25.5% 🟢)	0.000s (NaN%)	6.814s (-25.0% 🟢)	1.983s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.038s (-2.5%)	6.197s (-7.2% 🟢)	0.000s (-100.0% 🟢)	6.657s (-7.6% 🟢)	1.620s	10	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	15/21
🐘 Postgres	Nitro	16/21
▲ Vercel	Nitro	19/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	20/21
Nitro	🐘 Postgres	16/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-11T10:22:34Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	1264	2	219	1485
✅ 💻 Local Development	1671	0	219	1890
✅ 📦 Local Production	1671	0	219	1890
✅ 🐘 Local Postgres	1671	0	219	1890
✅ 🪟 Windows	135	0	0	135
✅ 📋 Other	769	0	176	945
Total	7181	2	1052	8235

❌ Failed Tests

▲ Vercel Production (2 failed)

astro (1 failed):

outputStreamWorkflow positive startIndex (skips first chunk)

express (1 failed):

fibonacciWorkflow - recursive workflow composition via start() | wrun_01KTV3RAK0WZJ5E3J6CG2TAGHH | 🔍 observability

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro	108	1	26
✅ example	109	0	26
❌ express	108	1	26
✅ fastify	109	0	26
✅ hono	109	0	26
✅ nextjs-turbopack	133	0	2
✅ nextjs-webpack	133	0	2
✅ nitro	109	0	26
✅ nuxt	109	0	26
✅ sveltekit	128	0	7
✅ vite	109	0	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts

…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)

…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx

* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)

VaguelySerious · 2026-06-11T10:22:14Z

Summary

When an E2E Vercel Prod Tests lane fails, CI now fetches the runtime request logs of the deployment under test and uploads them as part of the existing e2e-results-vercel-prod-* artifact, with the most relevant rows echoed into the job log.

Runtime logs are the missing piece when triaging these flakes: the harness already captures workflow run state and event timelines, but not what the deployed functions actually logged (crashes, unhandled rejections, cold-start failures). Today that information is simply lost.

How it works

A new .github/scripts/fetch-e2e-runtime-logs.mjs runs with if: failure() after the test step, using the same request-logs API as vercel logs.
The deployment is shared with concurrent CI runs and a test window can span tens of thousands of request rows, so instead of a bulk dump the script makes targeted queries:
1. an error/fatal-level sweep of the test window (server-side level filter), and
2. a per-failed-run query for each workflow run ID found in the e2e-failures-*.json sidecar (each request row carries a workflowRunId).
Rows are deduped by request ID and written to e2e-runtime-logs-{app}-vercel.json; the aggregation script excludes the new sidecar from vitest-result globbing.
The script never fails the job (exit 0 on any error) and no-ops gracefully when env/sidecars are missing.

Validation

Ran the script locally against the deployment from a real failed lane (E2E Vercel Prod (nitro), run 27291235666, 2026-06-10). It captured 23 targeted rows including the failed test's run — and immediately surfaced the kind of evidence this exists for:

[error] Unhandled Rejection: TypeError: fetch failed
[fatal] Node.js process exited with exit status: 128.

i.e. the deployed function process crashed mid-test — the failure mode addressed by #2336, invisible until now from the CI side.

Empty changeset: CI tooling only, no published packages touched.

🤖 Generated with Claude Code

When the e2e test step fails, fetch the deployment's runtime request logs via the same request-logs API the vercel CLI uses — an error/fatal-level sweep of the test window plus per-failed-run queries keyed by the workflow run IDs from the failures sidecar — and upload them as a job artifact. Runtime logs were the missing diagnostic: the harness records run state and event timelines, but not what the deployed functions logged (crashes, unhandled rejections, cold-start failures). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

vercel · 2026-06-11T10:22:17Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-nextjs-workflow-webpack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-astro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-express-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-fastify-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-hono-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nitro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nuxt-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-sveltekit-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-tanstack-start-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-vite-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-docs	Ready	Preview, Comment, Open in v0	Jun 11, 2026 10:25am
workflow-swc-playground	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-tarballs	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-web	Ready	Preview, Comment	Jun 11, 2026 10:25am

changeset-bot · 2026-06-11T10:22:20Z

🦋 Changeset detected

Latest commit: 0a43289

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-06-11T10:22:30Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.041s (-3.3%)	1.006s (~)	0.965s	10	1.00x
💻 Local	Express	0.048s (+10.2% 🔺)	1.007s (~)	0.960s	10	1.15x
🐘 Postgres	Nitro	0.056s (-11.9% 🟢)	1.012s (~)	0.957s	10	1.35x
🐘 Postgres	Express	0.059s (-10.4% 🟢)	1.012s (~)	0.953s	10	1.43x
💻 Local	Next.js (Turbopack)	0.060s (+9.6% 🔺)	1.006s (~)	0.946s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.062s (-11.7% 🟢)	1.011s (~)	0.949s	10	1.49x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.267s (+2.0%)	2.346s (-3.7%)	2.079s	10	1.00x
▲ Vercel	Next.js (Turbopack)	0.282s (-14.3% 🟢)	2.592s (+10.7% 🔺)	2.310s	10	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.094s (~)	2.006s (~)	0.913s	10	1.00x
💻 Local	Express	1.097s (~)	2.007s (~)	0.909s	10	1.00x
🐘 Postgres	Express	1.103s (+1.0%)	2.010s (~)	0.907s	10	1.01x
🐘 Postgres	Nitro	1.107s (-0.6%)	2.009s (~)	0.903s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.125s (-1.4%)	2.010s (~)	0.884s	10	1.03x
💻 Local	Next.js (Turbopack)	1.130s (+1.9%)	2.006s (~)	0.876s	10	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.695s (+8.2% 🔺)	3.520s (~)	1.825s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.772s (+6.4% 🔺)	3.766s (-7.6% 🟢)	1.994s	10	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.520s (~)	11.023s (~)	0.503s	3	1.00x
🐘 Postgres	Nitro	10.541s (~)	11.019s (~)	0.478s	3	1.00x
🐘 Postgres	Express	10.563s (-1.4%)	11.015s (-3.0%)	0.452s	3	1.00x
💻 Local	Express	10.586s (~)	11.024s (~)	0.438s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.660s (-1.5%)	11.022s (~)	0.362s	3	1.01x
💻 Local	Next.js (Turbopack)	10.771s (+1.6%)	11.024s (~)	0.253s	3	1.02x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	14.355s (+7.8% 🔺)	15.964s (+2.4%)	1.609s	2	1.00x
▲ Vercel	Next.js (Turbopack)	15.120s (+12.0% 🔺)	16.716s (+3.8%)	1.596s	2	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	13.755s (-1.1%)	14.028s (-1.4%)	0.272s	5	1.00x
🐘 Postgres	Nitro	13.800s (~)	14.017s (~)	0.218s	5	1.00x
💻 Local	Nitro	13.804s (+0.6%)	14.026s (~)	0.222s	5	1.00x
🐘 Postgres	Express	13.914s (+0.6%)	14.019s (-1.5%)	0.105s	5	1.01x
🐘 Postgres	Next.js (Turbopack)	14.024s (-3.9%)	14.821s (-1.3%)	0.797s	5	1.02x
💻 Local	Next.js (Turbopack)	14.304s (+2.0%)	15.029s (+2.8%)	0.725s	4	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	22.983s (-9.9% 🟢)	24.662s (-10.7% 🟢)	1.679s	3	1.00x
▲ Vercel	Next.js (Turbopack)	23.428s (-8.2% 🟢)	25.672s (-5.6% 🟢)	2.244s	3	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.350s (-3.0%)	13.016s (-2.2%)	0.665s	7	1.00x
🐘 Postgres	Nitro	12.422s (-2.5%)	13.019s (~)	0.596s	7	1.01x
💻 Local	Nitro	12.439s (~)	13.026s (~)	0.586s	7	1.01x
💻 Local	Express	12.472s (-1.0%)	13.027s (~)	0.554s	7	1.01x
🐘 Postgres	Next.js (Turbopack)	13.101s (-4.8%)	13.730s (-2.1%)	0.629s	7	1.06x
💻 Local	Next.js (Turbopack)	13.657s (+5.5% 🔺)	14.027s (+5.4% 🔺)	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	32.711s (+12.6% 🔺)	34.708s (+10.6% 🔺)	1.997s	3	1.00x
▲ Vercel	Next.js (Turbopack)	33.765s (+14.0% 🔺)	36.258s (+13.8% 🔺)	2.493s	3	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.180s (-1.7%)	2.007s (-0.7%)	0.828s	15	1.00x
💻 Local	Nitro	1.180s (-2.7%)	2.006s (~)	0.826s	15	1.00x
🐘 Postgres	Nitro	1.195s (~)	2.008s (~)	0.813s	15	1.01x
💻 Local	Express	1.264s (~)	2.006s (~)	0.742s	15	1.07x
🐘 Postgres	Next.js (Turbopack)	1.280s (+2.3%)	2.074s (+3.3%)	0.795s	15	1.08x
💻 Local	Next.js (Turbopack)	1.307s (+6.8% 🔺)	2.006s (~)	0.700s	15	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.615s (-5.6% 🟢)	4.027s (-7.2% 🟢)	1.412s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.199s (+19.0% 🔺)	4.592s (+8.8% 🔺)	1.392s	7	1.22x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.245s (-1.1%)	2.007s (~)	0.762s	15	1.00x
🐘 Postgres	Express	1.272s (-4.1%)	2.007s (~)	0.735s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.349s (-4.3%)	2.007s (~)	0.658s	15	1.08x
💻 Local	Nitro	1.715s (+0.6%)	2.006s (-3.2%)	0.291s	15	1.38x
💻 Local	Express	1.748s (-7.1% 🟢)	2.006s (-9.7% 🟢)	0.258s	15	1.40x
💻 Local	Next.js (Turbopack)	1.836s (+6.4% 🔺)	2.074s (+3.4%)	0.238s	15	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.676s (-9.7% 🟢)	5.193s (-16.4% 🟢)	1.517s	6	1.00x
▲ Vercel	Next.js (Turbopack)	4.162s (+1.4%)	5.659s (-7.8% 🟢)	1.496s	6	1.13x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-1.6%)	2.008s (~)	0.625s	15	1.00x
🐘 Postgres	Express	1.402s (+0.6%)	2.007s (~)	0.605s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.596s (-9.3% 🟢)	2.143s (-6.6% 🟢)	0.547s	15	1.15x
💻 Local	Nitro	4.620s (-2.1%)	5.012s (~)	0.391s	6	3.34x
💻 Local	Express	4.638s (-12.5% 🟢)	5.345s (-11.1% 🟢)	0.707s	6	3.35x
💻 Local	Next.js (Turbopack)	5.511s (+25.4% 🔺)	6.013s (+20.0% 🔺)	0.501s	5	3.98x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.462s (-18.9% 🟢)	7.360s (-15.5% 🟢)	1.898s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.898s (+17.5% 🔺)	8.815s (+13.3% 🔺)	1.917s	4	1.26x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.187s (-1.1%)	2.008s (~)	0.821s	15	1.00x
🐘 Postgres	Express	1.188s (-1.2%)	2.008s (~)	0.820s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.200s (-5.2% 🟢)	2.009s (~)	0.808s	15	1.01x
💻 Local	Next.js (Turbopack)	1.340s (+2.6%)	2.007s (~)	0.667s	15	1.13x
💻 Local	Nitro	1.485s (-3.8%)	2.006s (~)	0.521s	15	1.25x
💻 Local	Express	1.507s (-9.0% 🟢)	2.007s (-3.2%)	0.500s	15	1.27x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.456s (-8.1% 🟢)	3.852s (-11.1% 🟢)	1.396s	8	1.00x
▲ Vercel	Next.js (Turbopack)	2.655s (-39.3% 🟢)	4.323s (-31.3% 🟢)	1.668s	7	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.235s (-3.1%)	2.008s (~)	0.772s	15	1.00x
🐘 Postgres	Express	1.250s (+0.5%)	2.009s (~)	0.759s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.316s (-5.8% 🟢)	2.007s (~)	0.690s	15	1.07x
💻 Local	Next.js (Turbopack)	2.020s (~)	2.592s (+3.4%)	0.572s	12	1.63x
💻 Local	Nitro	2.031s (+15.6% 🔺)	2.591s (+25.0% 🔺)	0.560s	12	1.64x
💻 Local	Express	2.040s (-4.0%)	2.470s (-4.6%)	0.430s	13	1.65x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	3.367s (-25.5% 🟢)	4.908s (-20.4% 🟢)	1.541s	7	1.00x
▲ Vercel	Nitro	3.602s (-12.0% 🟢)	5.404s (-10.0% 🟢)	1.802s	6	1.07x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.378s (-5.7% 🟢)	2.007s (~)	0.629s	15	1.00x
🐘 Postgres	Express	1.400s (-6.7% 🟢)	2.008s (-16.2% 🟢)	0.608s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.616s (-2.4%)	2.151s (+3.7%)	0.535s	14	1.17x
💻 Local	Express	5.184s (-11.6% 🟢)	5.848s (-5.9% 🟢)	0.664s	6	3.76x
💻 Local	Nitro	5.367s (+13.2% 🔺)	6.015s (+12.6% 🔺)	0.648s	6	3.89x
💻 Local	Next.js (Turbopack)	5.729s (+11.0% 🔺)	6.414s (+6.6% 🔺)	0.685s	5	4.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.785s (+17.3% 🔺)	7.247s (+7.6% 🔺)	1.462s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.222s (+7.4% 🔺)	8.268s (+9.1% 🔺)	2.046s	4	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.566s (-7.0% 🟢)	1.023s (+1.6%)	0.457s	59	1.00x
🐘 Postgres	Express	0.569s (-14.6% 🟢)	1.041s (-0.6%)	0.472s	58	1.01x
💻 Local	Nitro	0.583s (-27.6% 🟢)	1.005s (-16.6% 🟢)	0.422s	60	1.03x
💻 Local	Express	0.598s (-8.8% 🟢)	1.005s (-3.3%)	0.407s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.664s (-18.3% 🟢)	1.023s (+1.7%)	0.360s	59	1.17x
💻 Local	Next.js (Turbopack)	0.850s (+22.1% 🔺)	1.005s (~)	0.155s	60	1.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.519s (-26.0% 🟢)	6.990s (-26.6% 🟢)	1.471s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.864s (+16.2% 🔺)	7.891s (+15.2% 🔺)	2.027s	8	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.315s (-7.2% 🟢)	2.008s (~)	0.693s	45	1.00x
🐘 Postgres	Express	1.382s (-10.0% 🟢)	2.029s (-5.7% 🟢)	0.647s	45	1.05x
💻 Local	Nitro	1.516s (+3.6%)	2.006s (~)	0.490s	45	1.15x
💻 Local	Express	1.542s (-3.1%)	2.007s (-1.1%)	0.465s	45	1.17x
🐘 Postgres	Next.js (Turbopack)	1.576s (-18.9% 🟢)	2.007s (-7.7% 🟢)	0.431s	45	1.20x
💻 Local	Next.js (Turbopack)	2.054s (+18.8% 🔺)	3.008s (+48.3% 🔺)	0.954s	30	1.56x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	13.967s (+5.7% 🔺)	15.727s (+1.6%)	1.760s	6	1.00x
▲ Vercel	Next.js (Turbopack)	15.435s (+4.5%)	17.236s (+1.8%)	1.801s	6	1.11x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.584s (-11.3% 🟢)	3.034s (-7.5% 🟢)	0.449s	40	1.00x
🐘 Postgres	Express	2.692s (-7.5% 🟢)	3.136s (-11.4% 🟢)	0.444s	39	1.04x
🐘 Postgres	Next.js (Turbopack)	3.127s (-19.0% 🟢)	4.009s (-1.7%)	0.882s	30	1.21x
💻 Local	Nitro	3.272s (+2.1%)	3.978s (-0.8%)	0.705s	31	1.27x
💻 Local	Express	3.337s (-2.4%)	4.010s (~)	0.673s	30	1.29x
💻 Local	Next.js (Turbopack)	4.322s (+15.9% 🔺)	5.010s (+21.9% 🔺)	0.688s	24	1.67x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	26.486s (-11.1% 🟢)	28.519s (-10.8% 🟢)	2.033s	5	1.00x
▲ Vercel	Next.js (Turbopack)	29.701s (+10.1% 🔺)	32.280s (+10.3% 🔺)	2.579s	4	1.12x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.215s (-8.5% 🟢)	1.006s (~)	0.791s	60	1.00x
🐘 Postgres	Express	0.221s (-12.3% 🟢)	1.006s (~)	0.785s	60	1.03x
🐘 Postgres	Next.js (Turbopack)	0.240s (-15.0% 🟢)	1.006s (~)	0.766s	60	1.11x
💻 Local	Nitro	0.466s (+9.8% 🔺)	1.022s (+1.8%)	0.556s	59	2.16x
💻 Local	Express	0.469s (+1.0%)	1.005s (~)	0.535s	60	2.18x
💻 Local	Next.js (Turbopack)	0.581s (-4.9%)	1.005s (-3.3%)	0.424s	60	2.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	2.282s (+3.7%)	3.811s (-9.7% 🟢)	1.530s	16	1.00x
▲ Vercel	Nitro	2.283s (-2.6%)	3.784s (-12.7% 🟢)	1.501s	16	1.00x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.337s (-9.1% 🟢)	1.007s (~)	0.669s	90	1.00x
🐘 Postgres	Express	0.346s (+2.2%)	1.007s (~)	0.660s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.419s (-13.1% 🟢)	1.006s (~)	0.587s	90	1.24x
💻 Local	Nitro	2.112s (+2.3%)	2.580s (-2.2%)	0.469s	35	6.26x
💻 Local	Express	2.217s (+1.2%)	2.797s (-0.9%)	0.580s	33	6.58x
💻 Local	Next.js (Turbopack)	2.325s (-5.1% 🟢)	3.009s (-3.2%)	0.684s	30	6.90x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.265s (-88.0% 🟢)	6.802s (-85.2% 🟢)	1.536s	14	1.00x
▲ Vercel	Next.js (Turbopack)	5.662s (-9.7% 🟢)	7.304s (-14.0% 🟢)	1.641s	13	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.662s (-6.4% 🟢)	1.007s (~)	0.345s	120	1.00x
🐘 Postgres	Express	0.666s (+6.4% 🔺)	1.006s (-4.6%)	0.341s	120	1.01x
🐘 Postgres	Next.js (Turbopack)	0.817s (-16.6% 🟢)	1.006s (-37.4% 🟢)	0.189s	120	1.23x
💻 Local	Nitro	9.727s (+11.7% 🔺)	10.194s (+9.2% 🔺)	0.467s	12	14.69x
💻 Local	Express	9.905s (-4.0%)	10.446s (-3.9%)	0.540s	12	14.96x
💻 Local	Next.js (Turbopack)	10.259s (-0.5%)	10.936s (-3.2%)	0.677s	11	15.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	15.846s (-94.9% 🟢)	17.641s (-94.4% 🟢)	1.795s	8	1.00x
▲ Vercel	Next.js (Turbopack)	18.329s (-88.5% 🟢)	20.381s (-87.4% 🟢)	2.052s	6	1.16x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.157s (-3.1%)	2.001s (~)	0.001s (-97.7% 🟢)	2.011s (-1.6%)	0.854s	10	1.00x
💻 Local	Express	1.162s (-0.5%)	2.005s (~)	0.011s (-18.0% 🟢)	2.018s (~)	0.856s	10	1.00x
💻 Local	Nitro	1.164s (+1.2%)	2.005s (~)	0.011s (+5.0%)	2.018s (~)	0.853s	10	1.01x
🐘 Postgres	Nitro	1.169s (-1.0%)	1.997s (~)	0.001s (-21.4% 🟢)	2.010s (~)	0.840s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.202s (-2.6%)	2.000s (~)	0.001s (-13.3% 🟢)	2.010s (~)	0.807s	10	1.04x
💻 Local	Next.js (Turbopack)	1.208s (+3.4%)	2.004s (~)	0.012s (+18.8% 🔺)	2.020s (~)	0.812s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.560s (+18.3% 🔺)	3.481s (+1.9%)	1.422s (+175.7% 🔺)	5.458s (+22.1% 🔺)	2.898s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.635s (+17.5% 🔺)	3.564s (~)	1.068s (-91.4% 🟢)	5.102s (-69.1% 🟢)	2.467s	10	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.571s (-9.6% 🟢)	2.002s (-6.6% 🟢)	0.005s (+75.1% 🔺)	2.027s (-6.2% 🟢)	0.456s	30	1.00x
🐘 Postgres	Nitro	1.572s (-5.5% 🟢)	2.003s (~)	0.005s (+34.2% 🔺)	2.028s (~)	0.456s	30	1.00x
💻 Local	Nitro	1.581s (-9.3% 🟢)	2.010s (~)	0.013s (+42.7% 🔺)	2.026s (-7.9% 🟢)	0.445s	30	1.01x
💻 Local	Express	1.600s (-2.2%)	2.011s (~)	0.014s (+26.9% 🔺)	2.027s (~)	0.427s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.648s (-6.5% 🟢)	2.009s (~)	0.004s (+8.3% 🔺)	2.025s (~)	0.376s	30	1.05x
💻 Local	Next.js (Turbopack)	1.717s (+4.6%)	2.009s (~)	0.013s (+29.4% 🔺)	2.025s (~)	0.308s	30	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.716s (-0.5%)	6.856s (-9.8% 🟢)	0.237s (-29.9% 🟢)	7.551s (-11.0% 🟢)	1.835s	8	1.00x
▲ Vercel	Next.js (Turbopack)	5.946s (-6.7% 🟢)	7.117s (-10.3% 🟢)	0.202s (-44.2% 🟢)	7.771s (-12.3% 🟢)	1.825s	8	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.663s (-8.2% 🟢)	1.011s (-1.9%)	0.000s (-67.2% 🟢)	1.024s (-2.2%)	0.361s	59	1.00x
🐘 Postgres	Express	0.692s (-29.2% 🟢)	1.012s (-29.1% 🟢)	0.000s (-52.5% 🟢)	1.033s (-28.7% 🟢)	0.340s	59	1.04x
🐘 Postgres	Next.js (Turbopack)	0.818s (-1.8%)	1.071s (~)	0.000s (-1.8%)	1.078s (~)	0.260s	57	1.23x
💻 Local	Nitro	1.408s (+4.1%)	2.013s (~)	0.000s (-33.3% 🟢)	2.016s (~)	0.607s	30	2.12x
💻 Local	Next.js (Turbopack)	1.448s (~)	2.013s (~)	0.000s (-37.5% 🟢)	2.016s (~)	0.568s	30	2.18x
💻 Local	Express	1.450s (-2.2%)	2.014s (~)	0.000s (-6.7% 🟢)	2.017s (~)	0.567s	30	2.19x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.079s (-14.5% 🟢)	4.197s (-17.2% 🟢)	0.000s (NaN%)	4.623s (-17.9% 🟢)	1.544s	13	1.00x
▲ Vercel	Next.js (Turbopack)	3.151s (-4.8%)	4.387s (-10.4% 🟢)	0.000s (NaN%)	4.831s (-11.5% 🟢)	1.680s	13	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.289s (-8.6% 🟢)	2.034s (+1.9%)	0.000s (NaN%)	2.052s (+2.0%)	0.763s	30	1.00x
🐘 Postgres	Express	1.468s (-9.1% 🟢)	2.140s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.169s (-4.8%)	0.701s	28	1.14x
🐘 Postgres	Next.js (Turbopack)	1.603s (-7.2% 🟢)	2.225s (-1.6%)	0.000s (NaN%)	2.247s (-1.0%)	0.644s	27	1.24x
💻 Local	Next.js (Turbopack)	2.746s (-14.6% 🟢)	3.287s (-15.7% 🟢)	0.000s (+34.7% 🔺)	3.290s (-15.6% 🟢)	0.545s	19	2.13x
💻 Local	Nitro	3.180s (+2.1%)	3.901s (~)	0.000s (+75.0% 🔺)	3.904s (~)	0.724s	16	2.47x
💻 Local	Express	3.309s (-0.7%)	3.966s (+3.3%)	0.001s (+66.7% 🔺)	3.969s (+3.3%)	0.660s	16	2.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	4.830s (-31.4% 🟢)	6.389s (-25.5% 🟢)	0.000s (NaN%)	6.814s (-25.0% 🟢)	1.983s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.038s (-2.5%)	6.197s (-7.2% 🟢)	0.000s (-100.0% 🟢)	6.657s (-7.6% 🟢)	1.620s	10	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	15/21
🐘 Postgres	Nitro	16/21
▲ Vercel	Nitro	19/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	20/21
Nitro	🐘 Postgres	16/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-11T10:22:34Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	1264	2	219	1485
✅ 💻 Local Development	1671	0	219	1890
✅ 📦 Local Production	1671	0	219	1890
✅ 🐘 Local Postgres	1671	0	219	1890
✅ 🪟 Windows	135	0	0	135
✅ 📋 Other	769	0	176	945
Total	7181	2	1052	8235

❌ Failed Tests

▲ Vercel Production (2 failed)

astro (1 failed):

outputStreamWorkflow positive startIndex (skips first chunk)

express (1 failed):

fibonacciWorkflow - recursive workflow composition via start() | wrun_01KTV3RAK0WZJ5E3J6CG2TAGHH | 🔍 observability

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro	108	1	26
✅ example	109	0	26
❌ express	108	1	26
✅ fastify	109	0	26
✅ hono	109	0	26
✅ nextjs-turbopack	133	0	2
✅ nextjs-webpack	133	0	2
✅ nitro	109	0	26
✅ nuxt	109	0	26
✅ sveltekit	128	0	7
✅ vite	109	0	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts

…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)

…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx

* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)

VaguelySerious · 2026-06-11T10:22:14Z

Summary

When an E2E Vercel Prod Tests lane fails, CI now fetches the runtime request logs of the deployment under test and uploads them as part of the existing e2e-results-vercel-prod-* artifact, with the most relevant rows echoed into the job log.

Runtime logs are the missing piece when triaging these flakes: the harness already captures workflow run state and event timelines, but not what the deployed functions actually logged (crashes, unhandled rejections, cold-start failures). Today that information is simply lost.

How it works

A new .github/scripts/fetch-e2e-runtime-logs.mjs runs with if: failure() after the test step, using the same request-logs API as vercel logs.
The deployment is shared with concurrent CI runs and a test window can span tens of thousands of request rows, so instead of a bulk dump the script makes targeted queries:
1. an error/fatal-level sweep of the test window (server-side level filter), and
2. a per-failed-run query for each workflow run ID found in the e2e-failures-*.json sidecar (each request row carries a workflowRunId).
Rows are deduped by request ID and written to e2e-runtime-logs-{app}-vercel.json; the aggregation script excludes the new sidecar from vitest-result globbing.
The script never fails the job (exit 0 on any error) and no-ops gracefully when env/sidecars are missing.

Validation

Ran the script locally against the deployment from a real failed lane (E2E Vercel Prod (nitro), run 27291235666, 2026-06-10). It captured 23 targeted rows including the failed test's run — and immediately surfaced the kind of evidence this exists for:

[error] Unhandled Rejection: TypeError: fetch failed
[fatal] Node.js process exited with exit status: 128.

i.e. the deployed function process crashed mid-test — the failure mode addressed by #2336, invisible until now from the CI side.

Empty changeset: CI tooling only, no published packages touched.

🤖 Generated with Claude Code

When the e2e test step fails, fetch the deployment's runtime request logs via the same request-logs API the vercel CLI uses — an error/fatal-level sweep of the test window plus per-failed-run queries keyed by the workflow run IDs from the failures sidecar — and upload them as a job artifact. Runtime logs were the missing diagnostic: the harness records run state and event timelines, but not what the deployed functions logged (crashes, unhandled rejections, cold-start failures). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

vercel · 2026-06-11T10:22:17Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-nextjs-workflow-webpack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-astro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-express-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-fastify-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-hono-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nitro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nuxt-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-sveltekit-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-tanstack-start-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-vite-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-docs	Ready	Preview, Comment, Open in v0	Jun 11, 2026 10:25am
workflow-swc-playground	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-tarballs	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-web	Ready	Preview, Comment	Jun 11, 2026 10:25am

changeset-bot · 2026-06-11T10:22:20Z

🦋 Changeset detected

Latest commit: 0a43289

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-06-11T10:22:30Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.041s (-3.3%)	1.006s (~)	0.965s	10	1.00x
💻 Local	Express	0.048s (+10.2% 🔺)	1.007s (~)	0.960s	10	1.15x
🐘 Postgres	Nitro	0.056s (-11.9% 🟢)	1.012s (~)	0.957s	10	1.35x
🐘 Postgres	Express	0.059s (-10.4% 🟢)	1.012s (~)	0.953s	10	1.43x
💻 Local	Next.js (Turbopack)	0.060s (+9.6% 🔺)	1.006s (~)	0.946s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.062s (-11.7% 🟢)	1.011s (~)	0.949s	10	1.49x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.267s (+2.0%)	2.346s (-3.7%)	2.079s	10	1.00x
▲ Vercel	Next.js (Turbopack)	0.282s (-14.3% 🟢)	2.592s (+10.7% 🔺)	2.310s	10	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.094s (~)	2.006s (~)	0.913s	10	1.00x
💻 Local	Express	1.097s (~)	2.007s (~)	0.909s	10	1.00x
🐘 Postgres	Express	1.103s (+1.0%)	2.010s (~)	0.907s	10	1.01x
🐘 Postgres	Nitro	1.107s (-0.6%)	2.009s (~)	0.903s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.125s (-1.4%)	2.010s (~)	0.884s	10	1.03x
💻 Local	Next.js (Turbopack)	1.130s (+1.9%)	2.006s (~)	0.876s	10	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.695s (+8.2% 🔺)	3.520s (~)	1.825s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.772s (+6.4% 🔺)	3.766s (-7.6% 🟢)	1.994s	10	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.520s (~)	11.023s (~)	0.503s	3	1.00x
🐘 Postgres	Nitro	10.541s (~)	11.019s (~)	0.478s	3	1.00x
🐘 Postgres	Express	10.563s (-1.4%)	11.015s (-3.0%)	0.452s	3	1.00x
💻 Local	Express	10.586s (~)	11.024s (~)	0.438s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.660s (-1.5%)	11.022s (~)	0.362s	3	1.01x
💻 Local	Next.js (Turbopack)	10.771s (+1.6%)	11.024s (~)	0.253s	3	1.02x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	14.355s (+7.8% 🔺)	15.964s (+2.4%)	1.609s	2	1.00x
▲ Vercel	Next.js (Turbopack)	15.120s (+12.0% 🔺)	16.716s (+3.8%)	1.596s	2	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	13.755s (-1.1%)	14.028s (-1.4%)	0.272s	5	1.00x
🐘 Postgres	Nitro	13.800s (~)	14.017s (~)	0.218s	5	1.00x
💻 Local	Nitro	13.804s (+0.6%)	14.026s (~)	0.222s	5	1.00x
🐘 Postgres	Express	13.914s (+0.6%)	14.019s (-1.5%)	0.105s	5	1.01x
🐘 Postgres	Next.js (Turbopack)	14.024s (-3.9%)	14.821s (-1.3%)	0.797s	5	1.02x
💻 Local	Next.js (Turbopack)	14.304s (+2.0%)	15.029s (+2.8%)	0.725s	4	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	22.983s (-9.9% 🟢)	24.662s (-10.7% 🟢)	1.679s	3	1.00x
▲ Vercel	Next.js (Turbopack)	23.428s (-8.2% 🟢)	25.672s (-5.6% 🟢)	2.244s	3	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.350s (-3.0%)	13.016s (-2.2%)	0.665s	7	1.00x
🐘 Postgres	Nitro	12.422s (-2.5%)	13.019s (~)	0.596s	7	1.01x
💻 Local	Nitro	12.439s (~)	13.026s (~)	0.586s	7	1.01x
💻 Local	Express	12.472s (-1.0%)	13.027s (~)	0.554s	7	1.01x
🐘 Postgres	Next.js (Turbopack)	13.101s (-4.8%)	13.730s (-2.1%)	0.629s	7	1.06x
💻 Local	Next.js (Turbopack)	13.657s (+5.5% 🔺)	14.027s (+5.4% 🔺)	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	32.711s (+12.6% 🔺)	34.708s (+10.6% 🔺)	1.997s	3	1.00x
▲ Vercel	Next.js (Turbopack)	33.765s (+14.0% 🔺)	36.258s (+13.8% 🔺)	2.493s	3	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.180s (-1.7%)	2.007s (-0.7%)	0.828s	15	1.00x
💻 Local	Nitro	1.180s (-2.7%)	2.006s (~)	0.826s	15	1.00x
🐘 Postgres	Nitro	1.195s (~)	2.008s (~)	0.813s	15	1.01x
💻 Local	Express	1.264s (~)	2.006s (~)	0.742s	15	1.07x
🐘 Postgres	Next.js (Turbopack)	1.280s (+2.3%)	2.074s (+3.3%)	0.795s	15	1.08x
💻 Local	Next.js (Turbopack)	1.307s (+6.8% 🔺)	2.006s (~)	0.700s	15	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.615s (-5.6% 🟢)	4.027s (-7.2% 🟢)	1.412s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.199s (+19.0% 🔺)	4.592s (+8.8% 🔺)	1.392s	7	1.22x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.245s (-1.1%)	2.007s (~)	0.762s	15	1.00x
🐘 Postgres	Express	1.272s (-4.1%)	2.007s (~)	0.735s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.349s (-4.3%)	2.007s (~)	0.658s	15	1.08x
💻 Local	Nitro	1.715s (+0.6%)	2.006s (-3.2%)	0.291s	15	1.38x
💻 Local	Express	1.748s (-7.1% 🟢)	2.006s (-9.7% 🟢)	0.258s	15	1.40x
💻 Local	Next.js (Turbopack)	1.836s (+6.4% 🔺)	2.074s (+3.4%)	0.238s	15	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.676s (-9.7% 🟢)	5.193s (-16.4% 🟢)	1.517s	6	1.00x
▲ Vercel	Next.js (Turbopack)	4.162s (+1.4%)	5.659s (-7.8% 🟢)	1.496s	6	1.13x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-1.6%)	2.008s (~)	0.625s	15	1.00x
🐘 Postgres	Express	1.402s (+0.6%)	2.007s (~)	0.605s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.596s (-9.3% 🟢)	2.143s (-6.6% 🟢)	0.547s	15	1.15x
💻 Local	Nitro	4.620s (-2.1%)	5.012s (~)	0.391s	6	3.34x
💻 Local	Express	4.638s (-12.5% 🟢)	5.345s (-11.1% 🟢)	0.707s	6	3.35x
💻 Local	Next.js (Turbopack)	5.511s (+25.4% 🔺)	6.013s (+20.0% 🔺)	0.501s	5	3.98x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.462s (-18.9% 🟢)	7.360s (-15.5% 🟢)	1.898s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.898s (+17.5% 🔺)	8.815s (+13.3% 🔺)	1.917s	4	1.26x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.187s (-1.1%)	2.008s (~)	0.821s	15	1.00x
🐘 Postgres	Express	1.188s (-1.2%)	2.008s (~)	0.820s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.200s (-5.2% 🟢)	2.009s (~)	0.808s	15	1.01x
💻 Local	Next.js (Turbopack)	1.340s (+2.6%)	2.007s (~)	0.667s	15	1.13x
💻 Local	Nitro	1.485s (-3.8%)	2.006s (~)	0.521s	15	1.25x
💻 Local	Express	1.507s (-9.0% 🟢)	2.007s (-3.2%)	0.500s	15	1.27x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.456s (-8.1% 🟢)	3.852s (-11.1% 🟢)	1.396s	8	1.00x
▲ Vercel	Next.js (Turbopack)	2.655s (-39.3% 🟢)	4.323s (-31.3% 🟢)	1.668s	7	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.235s (-3.1%)	2.008s (~)	0.772s	15	1.00x
🐘 Postgres	Express	1.250s (+0.5%)	2.009s (~)	0.759s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.316s (-5.8% 🟢)	2.007s (~)	0.690s	15	1.07x
💻 Local	Next.js (Turbopack)	2.020s (~)	2.592s (+3.4%)	0.572s	12	1.63x
💻 Local	Nitro	2.031s (+15.6% 🔺)	2.591s (+25.0% 🔺)	0.560s	12	1.64x
💻 Local	Express	2.040s (-4.0%)	2.470s (-4.6%)	0.430s	13	1.65x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	3.367s (-25.5% 🟢)	4.908s (-20.4% 🟢)	1.541s	7	1.00x
▲ Vercel	Nitro	3.602s (-12.0% 🟢)	5.404s (-10.0% 🟢)	1.802s	6	1.07x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.378s (-5.7% 🟢)	2.007s (~)	0.629s	15	1.00x
🐘 Postgres	Express	1.400s (-6.7% 🟢)	2.008s (-16.2% 🟢)	0.608s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.616s (-2.4%)	2.151s (+3.7%)	0.535s	14	1.17x
💻 Local	Express	5.184s (-11.6% 🟢)	5.848s (-5.9% 🟢)	0.664s	6	3.76x
💻 Local	Nitro	5.367s (+13.2% 🔺)	6.015s (+12.6% 🔺)	0.648s	6	3.89x
💻 Local	Next.js (Turbopack)	5.729s (+11.0% 🔺)	6.414s (+6.6% 🔺)	0.685s	5	4.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.785s (+17.3% 🔺)	7.247s (+7.6% 🔺)	1.462s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.222s (+7.4% 🔺)	8.268s (+9.1% 🔺)	2.046s	4	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.566s (-7.0% 🟢)	1.023s (+1.6%)	0.457s	59	1.00x
🐘 Postgres	Express	0.569s (-14.6% 🟢)	1.041s (-0.6%)	0.472s	58	1.01x
💻 Local	Nitro	0.583s (-27.6% 🟢)	1.005s (-16.6% 🟢)	0.422s	60	1.03x
💻 Local	Express	0.598s (-8.8% 🟢)	1.005s (-3.3%)	0.407s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.664s (-18.3% 🟢)	1.023s (+1.7%)	0.360s	59	1.17x
💻 Local	Next.js (Turbopack)	0.850s (+22.1% 🔺)	1.005s (~)	0.155s	60	1.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.519s (-26.0% 🟢)	6.990s (-26.6% 🟢)	1.471s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.864s (+16.2% 🔺)	7.891s (+15.2% 🔺)	2.027s	8	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.315s (-7.2% 🟢)	2.008s (~)	0.693s	45	1.00x
🐘 Postgres	Express	1.382s (-10.0% 🟢)	2.029s (-5.7% 🟢)	0.647s	45	1.05x
💻 Local	Nitro	1.516s (+3.6%)	2.006s (~)	0.490s	45	1.15x
💻 Local	Express	1.542s (-3.1%)	2.007s (-1.1%)	0.465s	45	1.17x
🐘 Postgres	Next.js (Turbopack)	1.576s (-18.9% 🟢)	2.007s (-7.7% 🟢)	0.431s	45	1.20x
💻 Local	Next.js (Turbopack)	2.054s (+18.8% 🔺)	3.008s (+48.3% 🔺)	0.954s	30	1.56x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	13.967s (+5.7% 🔺)	15.727s (+1.6%)	1.760s	6	1.00x
▲ Vercel	Next.js (Turbopack)	15.435s (+4.5%)	17.236s (+1.8%)	1.801s	6	1.11x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.584s (-11.3% 🟢)	3.034s (-7.5% 🟢)	0.449s	40	1.00x
🐘 Postgres	Express	2.692s (-7.5% 🟢)	3.136s (-11.4% 🟢)	0.444s	39	1.04x
🐘 Postgres	Next.js (Turbopack)	3.127s (-19.0% 🟢)	4.009s (-1.7%)	0.882s	30	1.21x
💻 Local	Nitro	3.272s (+2.1%)	3.978s (-0.8%)	0.705s	31	1.27x
💻 Local	Express	3.337s (-2.4%)	4.010s (~)	0.673s	30	1.29x
💻 Local	Next.js (Turbopack)	4.322s (+15.9% 🔺)	5.010s (+21.9% 🔺)	0.688s	24	1.67x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	26.486s (-11.1% 🟢)	28.519s (-10.8% 🟢)	2.033s	5	1.00x
▲ Vercel	Next.js (Turbopack)	29.701s (+10.1% 🔺)	32.280s (+10.3% 🔺)	2.579s	4	1.12x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.215s (-8.5% 🟢)	1.006s (~)	0.791s	60	1.00x
🐘 Postgres	Express	0.221s (-12.3% 🟢)	1.006s (~)	0.785s	60	1.03x
🐘 Postgres	Next.js (Turbopack)	0.240s (-15.0% 🟢)	1.006s (~)	0.766s	60	1.11x
💻 Local	Nitro	0.466s (+9.8% 🔺)	1.022s (+1.8%)	0.556s	59	2.16x
💻 Local	Express	0.469s (+1.0%)	1.005s (~)	0.535s	60	2.18x
💻 Local	Next.js (Turbopack)	0.581s (-4.9%)	1.005s (-3.3%)	0.424s	60	2.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	2.282s (+3.7%)	3.811s (-9.7% 🟢)	1.530s	16	1.00x
▲ Vercel	Nitro	2.283s (-2.6%)	3.784s (-12.7% 🟢)	1.501s	16	1.00x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.337s (-9.1% 🟢)	1.007s (~)	0.669s	90	1.00x
🐘 Postgres	Express	0.346s (+2.2%)	1.007s (~)	0.660s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.419s (-13.1% 🟢)	1.006s (~)	0.587s	90	1.24x
💻 Local	Nitro	2.112s (+2.3%)	2.580s (-2.2%)	0.469s	35	6.26x
💻 Local	Express	2.217s (+1.2%)	2.797s (-0.9%)	0.580s	33	6.58x
💻 Local	Next.js (Turbopack)	2.325s (-5.1% 🟢)	3.009s (-3.2%)	0.684s	30	6.90x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.265s (-88.0% 🟢)	6.802s (-85.2% 🟢)	1.536s	14	1.00x
▲ Vercel	Next.js (Turbopack)	5.662s (-9.7% 🟢)	7.304s (-14.0% 🟢)	1.641s	13	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.662s (-6.4% 🟢)	1.007s (~)	0.345s	120	1.00x
🐘 Postgres	Express	0.666s (+6.4% 🔺)	1.006s (-4.6%)	0.341s	120	1.01x
🐘 Postgres	Next.js (Turbopack)	0.817s (-16.6% 🟢)	1.006s (-37.4% 🟢)	0.189s	120	1.23x
💻 Local	Nitro	9.727s (+11.7% 🔺)	10.194s (+9.2% 🔺)	0.467s	12	14.69x
💻 Local	Express	9.905s (-4.0%)	10.446s (-3.9%)	0.540s	12	14.96x
💻 Local	Next.js (Turbopack)	10.259s (-0.5%)	10.936s (-3.2%)	0.677s	11	15.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	15.846s (-94.9% 🟢)	17.641s (-94.4% 🟢)	1.795s	8	1.00x
▲ Vercel	Next.js (Turbopack)	18.329s (-88.5% 🟢)	20.381s (-87.4% 🟢)	2.052s	6	1.16x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.157s (-3.1%)	2.001s (~)	0.001s (-97.7% 🟢)	2.011s (-1.6%)	0.854s	10	1.00x
💻 Local	Express	1.162s (-0.5%)	2.005s (~)	0.011s (-18.0% 🟢)	2.018s (~)	0.856s	10	1.00x
💻 Local	Nitro	1.164s (+1.2%)	2.005s (~)	0.011s (+5.0%)	2.018s (~)	0.853s	10	1.01x
🐘 Postgres	Nitro	1.169s (-1.0%)	1.997s (~)	0.001s (-21.4% 🟢)	2.010s (~)	0.840s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.202s (-2.6%)	2.000s (~)	0.001s (-13.3% 🟢)	2.010s (~)	0.807s	10	1.04x
💻 Local	Next.js (Turbopack)	1.208s (+3.4%)	2.004s (~)	0.012s (+18.8% 🔺)	2.020s (~)	0.812s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.560s (+18.3% 🔺)	3.481s (+1.9%)	1.422s (+175.7% 🔺)	5.458s (+22.1% 🔺)	2.898s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.635s (+17.5% 🔺)	3.564s (~)	1.068s (-91.4% 🟢)	5.102s (-69.1% 🟢)	2.467s	10	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.571s (-9.6% 🟢)	2.002s (-6.6% 🟢)	0.005s (+75.1% 🔺)	2.027s (-6.2% 🟢)	0.456s	30	1.00x
🐘 Postgres	Nitro	1.572s (-5.5% 🟢)	2.003s (~)	0.005s (+34.2% 🔺)	2.028s (~)	0.456s	30	1.00x
💻 Local	Nitro	1.581s (-9.3% 🟢)	2.010s (~)	0.013s (+42.7% 🔺)	2.026s (-7.9% 🟢)	0.445s	30	1.01x
💻 Local	Express	1.600s (-2.2%)	2.011s (~)	0.014s (+26.9% 🔺)	2.027s (~)	0.427s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.648s (-6.5% 🟢)	2.009s (~)	0.004s (+8.3% 🔺)	2.025s (~)	0.376s	30	1.05x
💻 Local	Next.js (Turbopack)	1.717s (+4.6%)	2.009s (~)	0.013s (+29.4% 🔺)	2.025s (~)	0.308s	30	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.716s (-0.5%)	6.856s (-9.8% 🟢)	0.237s (-29.9% 🟢)	7.551s (-11.0% 🟢)	1.835s	8	1.00x
▲ Vercel	Next.js (Turbopack)	5.946s (-6.7% 🟢)	7.117s (-10.3% 🟢)	0.202s (-44.2% 🟢)	7.771s (-12.3% 🟢)	1.825s	8	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.663s (-8.2% 🟢)	1.011s (-1.9%)	0.000s (-67.2% 🟢)	1.024s (-2.2%)	0.361s	59	1.00x
🐘 Postgres	Express	0.692s (-29.2% 🟢)	1.012s (-29.1% 🟢)	0.000s (-52.5% 🟢)	1.033s (-28.7% 🟢)	0.340s	59	1.04x
🐘 Postgres	Next.js (Turbopack)	0.818s (-1.8%)	1.071s (~)	0.000s (-1.8%)	1.078s (~)	0.260s	57	1.23x
💻 Local	Nitro	1.408s (+4.1%)	2.013s (~)	0.000s (-33.3% 🟢)	2.016s (~)	0.607s	30	2.12x
💻 Local	Next.js (Turbopack)	1.448s (~)	2.013s (~)	0.000s (-37.5% 🟢)	2.016s (~)	0.568s	30	2.18x
💻 Local	Express	1.450s (-2.2%)	2.014s (~)	0.000s (-6.7% 🟢)	2.017s (~)	0.567s	30	2.19x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.079s (-14.5% 🟢)	4.197s (-17.2% 🟢)	0.000s (NaN%)	4.623s (-17.9% 🟢)	1.544s	13	1.00x
▲ Vercel	Next.js (Turbopack)	3.151s (-4.8%)	4.387s (-10.4% 🟢)	0.000s (NaN%)	4.831s (-11.5% 🟢)	1.680s	13	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.289s (-8.6% 🟢)	2.034s (+1.9%)	0.000s (NaN%)	2.052s (+2.0%)	0.763s	30	1.00x
🐘 Postgres	Express	1.468s (-9.1% 🟢)	2.140s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.169s (-4.8%)	0.701s	28	1.14x
🐘 Postgres	Next.js (Turbopack)	1.603s (-7.2% 🟢)	2.225s (-1.6%)	0.000s (NaN%)	2.247s (-1.0%)	0.644s	27	1.24x
💻 Local	Next.js (Turbopack)	2.746s (-14.6% 🟢)	3.287s (-15.7% 🟢)	0.000s (+34.7% 🔺)	3.290s (-15.6% 🟢)	0.545s	19	2.13x
💻 Local	Nitro	3.180s (+2.1%)	3.901s (~)	0.000s (+75.0% 🔺)	3.904s (~)	0.724s	16	2.47x
💻 Local	Express	3.309s (-0.7%)	3.966s (+3.3%)	0.001s (+66.7% 🔺)	3.969s (+3.3%)	0.660s	16	2.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	4.830s (-31.4% 🟢)	6.389s (-25.5% 🟢)	0.000s (NaN%)	6.814s (-25.0% 🟢)	1.983s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.038s (-2.5%)	6.197s (-7.2% 🟢)	0.000s (-100.0% 🟢)	6.657s (-7.6% 🟢)	1.620s	10	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	15/21
🐘 Postgres	Nitro	16/21
▲ Vercel	Nitro	19/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	20/21
Nitro	🐘 Postgres	16/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-11T10:22:34Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	1264	2	219	1485
✅ 💻 Local Development	1671	0	219	1890
✅ 📦 Local Production	1671	0	219	1890
✅ 🐘 Local Postgres	1671	0	219	1890
✅ 🪟 Windows	135	0	0	135
✅ 📋 Other	769	0	176	945
Total	7181	2	1052	8235

❌ Failed Tests

▲ Vercel Production (2 failed)

astro (1 failed):

outputStreamWorkflow positive startIndex (skips first chunk)

express (1 failed):

fibonacciWorkflow - recursive workflow composition via start() | wrun_01KTV3RAK0WZJ5E3J6CG2TAGHH | 🔍 observability

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro	108	1	26
✅ example	109	0	26
❌ express	108	1	26
✅ fastify	109	0	26
✅ hono	109	0	26
✅ nextjs-turbopack	133	0	2
✅ nextjs-webpack	133	0	2
✅ nitro	109	0	26
✅ nuxt	109	0	26
✅ sveltekit	128	0	7
✅ vite	109	0	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts

…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)

…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx

* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)

VaguelySerious · 2026-06-11T10:22:14Z

Summary

When an E2E Vercel Prod Tests lane fails, CI now fetches the runtime request logs of the deployment under test and uploads them as part of the existing e2e-results-vercel-prod-* artifact, with the most relevant rows echoed into the job log.

Runtime logs are the missing piece when triaging these flakes: the harness already captures workflow run state and event timelines, but not what the deployed functions actually logged (crashes, unhandled rejections, cold-start failures). Today that information is simply lost.

How it works

A new .github/scripts/fetch-e2e-runtime-logs.mjs runs with if: failure() after the test step, using the same request-logs API as vercel logs.
The deployment is shared with concurrent CI runs and a test window can span tens of thousands of request rows, so instead of a bulk dump the script makes targeted queries:
1. an error/fatal-level sweep of the test window (server-side level filter), and
2. a per-failed-run query for each workflow run ID found in the e2e-failures-*.json sidecar (each request row carries a workflowRunId).
Rows are deduped by request ID and written to e2e-runtime-logs-{app}-vercel.json; the aggregation script excludes the new sidecar from vitest-result globbing.
The script never fails the job (exit 0 on any error) and no-ops gracefully when env/sidecars are missing.

Validation

Ran the script locally against the deployment from a real failed lane (E2E Vercel Prod (nitro), run 27291235666, 2026-06-10). It captured 23 targeted rows including the failed test's run — and immediately surfaced the kind of evidence this exists for:

[error] Unhandled Rejection: TypeError: fetch failed
[fatal] Node.js process exited with exit status: 128.

i.e. the deployed function process crashed mid-test — the failure mode addressed by #2336, invisible until now from the CI side.

Empty changeset: CI tooling only, no published packages touched.

🤖 Generated with Claude Code

When the e2e test step fails, fetch the deployment's runtime request logs via the same request-logs API the vercel CLI uses — an error/fatal-level sweep of the test window plus per-failed-run queries keyed by the workflow run IDs from the failures sidecar — and upload them as a job artifact. Runtime logs were the missing diagnostic: the harness records run state and event timelines, but not what the deployed functions logged (crashes, unhandled rejections, cold-start failures). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

vercel · 2026-06-11T10:22:17Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-nextjs-workflow-webpack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-astro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-express-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-fastify-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-hono-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nitro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nuxt-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-sveltekit-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-tanstack-start-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-vite-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-docs	Ready	Preview, Comment, Open in v0	Jun 11, 2026 10:25am
workflow-swc-playground	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-tarballs	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-web	Ready	Preview, Comment	Jun 11, 2026 10:25am

changeset-bot · 2026-06-11T10:22:20Z

🦋 Changeset detected

Latest commit: 0a43289

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-06-11T10:22:30Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.041s (-3.3%)	1.006s (~)	0.965s	10	1.00x
💻 Local	Express	0.048s (+10.2% 🔺)	1.007s (~)	0.960s	10	1.15x
🐘 Postgres	Nitro	0.056s (-11.9% 🟢)	1.012s (~)	0.957s	10	1.35x
🐘 Postgres	Express	0.059s (-10.4% 🟢)	1.012s (~)	0.953s	10	1.43x
💻 Local	Next.js (Turbopack)	0.060s (+9.6% 🔺)	1.006s (~)	0.946s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.062s (-11.7% 🟢)	1.011s (~)	0.949s	10	1.49x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.267s (+2.0%)	2.346s (-3.7%)	2.079s	10	1.00x
▲ Vercel	Next.js (Turbopack)	0.282s (-14.3% 🟢)	2.592s (+10.7% 🔺)	2.310s	10	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.094s (~)	2.006s (~)	0.913s	10	1.00x
💻 Local	Express	1.097s (~)	2.007s (~)	0.909s	10	1.00x
🐘 Postgres	Express	1.103s (+1.0%)	2.010s (~)	0.907s	10	1.01x
🐘 Postgres	Nitro	1.107s (-0.6%)	2.009s (~)	0.903s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.125s (-1.4%)	2.010s (~)	0.884s	10	1.03x
💻 Local	Next.js (Turbopack)	1.130s (+1.9%)	2.006s (~)	0.876s	10	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.695s (+8.2% 🔺)	3.520s (~)	1.825s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.772s (+6.4% 🔺)	3.766s (-7.6% 🟢)	1.994s	10	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.520s (~)	11.023s (~)	0.503s	3	1.00x
🐘 Postgres	Nitro	10.541s (~)	11.019s (~)	0.478s	3	1.00x
🐘 Postgres	Express	10.563s (-1.4%)	11.015s (-3.0%)	0.452s	3	1.00x
💻 Local	Express	10.586s (~)	11.024s (~)	0.438s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.660s (-1.5%)	11.022s (~)	0.362s	3	1.01x
💻 Local	Next.js (Turbopack)	10.771s (+1.6%)	11.024s (~)	0.253s	3	1.02x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	14.355s (+7.8% 🔺)	15.964s (+2.4%)	1.609s	2	1.00x
▲ Vercel	Next.js (Turbopack)	15.120s (+12.0% 🔺)	16.716s (+3.8%)	1.596s	2	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	13.755s (-1.1%)	14.028s (-1.4%)	0.272s	5	1.00x
🐘 Postgres	Nitro	13.800s (~)	14.017s (~)	0.218s	5	1.00x
💻 Local	Nitro	13.804s (+0.6%)	14.026s (~)	0.222s	5	1.00x
🐘 Postgres	Express	13.914s (+0.6%)	14.019s (-1.5%)	0.105s	5	1.01x
🐘 Postgres	Next.js (Turbopack)	14.024s (-3.9%)	14.821s (-1.3%)	0.797s	5	1.02x
💻 Local	Next.js (Turbopack)	14.304s (+2.0%)	15.029s (+2.8%)	0.725s	4	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	22.983s (-9.9% 🟢)	24.662s (-10.7% 🟢)	1.679s	3	1.00x
▲ Vercel	Next.js (Turbopack)	23.428s (-8.2% 🟢)	25.672s (-5.6% 🟢)	2.244s	3	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.350s (-3.0%)	13.016s (-2.2%)	0.665s	7	1.00x
🐘 Postgres	Nitro	12.422s (-2.5%)	13.019s (~)	0.596s	7	1.01x
💻 Local	Nitro	12.439s (~)	13.026s (~)	0.586s	7	1.01x
💻 Local	Express	12.472s (-1.0%)	13.027s (~)	0.554s	7	1.01x
🐘 Postgres	Next.js (Turbopack)	13.101s (-4.8%)	13.730s (-2.1%)	0.629s	7	1.06x
💻 Local	Next.js (Turbopack)	13.657s (+5.5% 🔺)	14.027s (+5.4% 🔺)	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	32.711s (+12.6% 🔺)	34.708s (+10.6% 🔺)	1.997s	3	1.00x
▲ Vercel	Next.js (Turbopack)	33.765s (+14.0% 🔺)	36.258s (+13.8% 🔺)	2.493s	3	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.180s (-1.7%)	2.007s (-0.7%)	0.828s	15	1.00x
💻 Local	Nitro	1.180s (-2.7%)	2.006s (~)	0.826s	15	1.00x
🐘 Postgres	Nitro	1.195s (~)	2.008s (~)	0.813s	15	1.01x
💻 Local	Express	1.264s (~)	2.006s (~)	0.742s	15	1.07x
🐘 Postgres	Next.js (Turbopack)	1.280s (+2.3%)	2.074s (+3.3%)	0.795s	15	1.08x
💻 Local	Next.js (Turbopack)	1.307s (+6.8% 🔺)	2.006s (~)	0.700s	15	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.615s (-5.6% 🟢)	4.027s (-7.2% 🟢)	1.412s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.199s (+19.0% 🔺)	4.592s (+8.8% 🔺)	1.392s	7	1.22x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.245s (-1.1%)	2.007s (~)	0.762s	15	1.00x
🐘 Postgres	Express	1.272s (-4.1%)	2.007s (~)	0.735s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.349s (-4.3%)	2.007s (~)	0.658s	15	1.08x
💻 Local	Nitro	1.715s (+0.6%)	2.006s (-3.2%)	0.291s	15	1.38x
💻 Local	Express	1.748s (-7.1% 🟢)	2.006s (-9.7% 🟢)	0.258s	15	1.40x
💻 Local	Next.js (Turbopack)	1.836s (+6.4% 🔺)	2.074s (+3.4%)	0.238s	15	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.676s (-9.7% 🟢)	5.193s (-16.4% 🟢)	1.517s	6	1.00x
▲ Vercel	Next.js (Turbopack)	4.162s (+1.4%)	5.659s (-7.8% 🟢)	1.496s	6	1.13x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-1.6%)	2.008s (~)	0.625s	15	1.00x
🐘 Postgres	Express	1.402s (+0.6%)	2.007s (~)	0.605s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.596s (-9.3% 🟢)	2.143s (-6.6% 🟢)	0.547s	15	1.15x
💻 Local	Nitro	4.620s (-2.1%)	5.012s (~)	0.391s	6	3.34x
💻 Local	Express	4.638s (-12.5% 🟢)	5.345s (-11.1% 🟢)	0.707s	6	3.35x
💻 Local	Next.js (Turbopack)	5.511s (+25.4% 🔺)	6.013s (+20.0% 🔺)	0.501s	5	3.98x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.462s (-18.9% 🟢)	7.360s (-15.5% 🟢)	1.898s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.898s (+17.5% 🔺)	8.815s (+13.3% 🔺)	1.917s	4	1.26x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.187s (-1.1%)	2.008s (~)	0.821s	15	1.00x
🐘 Postgres	Express	1.188s (-1.2%)	2.008s (~)	0.820s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.200s (-5.2% 🟢)	2.009s (~)	0.808s	15	1.01x
💻 Local	Next.js (Turbopack)	1.340s (+2.6%)	2.007s (~)	0.667s	15	1.13x
💻 Local	Nitro	1.485s (-3.8%)	2.006s (~)	0.521s	15	1.25x
💻 Local	Express	1.507s (-9.0% 🟢)	2.007s (-3.2%)	0.500s	15	1.27x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.456s (-8.1% 🟢)	3.852s (-11.1% 🟢)	1.396s	8	1.00x
▲ Vercel	Next.js (Turbopack)	2.655s (-39.3% 🟢)	4.323s (-31.3% 🟢)	1.668s	7	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.235s (-3.1%)	2.008s (~)	0.772s	15	1.00x
🐘 Postgres	Express	1.250s (+0.5%)	2.009s (~)	0.759s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.316s (-5.8% 🟢)	2.007s (~)	0.690s	15	1.07x
💻 Local	Next.js (Turbopack)	2.020s (~)	2.592s (+3.4%)	0.572s	12	1.63x
💻 Local	Nitro	2.031s (+15.6% 🔺)	2.591s (+25.0% 🔺)	0.560s	12	1.64x
💻 Local	Express	2.040s (-4.0%)	2.470s (-4.6%)	0.430s	13	1.65x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	3.367s (-25.5% 🟢)	4.908s (-20.4% 🟢)	1.541s	7	1.00x
▲ Vercel	Nitro	3.602s (-12.0% 🟢)	5.404s (-10.0% 🟢)	1.802s	6	1.07x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.378s (-5.7% 🟢)	2.007s (~)	0.629s	15	1.00x
🐘 Postgres	Express	1.400s (-6.7% 🟢)	2.008s (-16.2% 🟢)	0.608s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.616s (-2.4%)	2.151s (+3.7%)	0.535s	14	1.17x
💻 Local	Express	5.184s (-11.6% 🟢)	5.848s (-5.9% 🟢)	0.664s	6	3.76x
💻 Local	Nitro	5.367s (+13.2% 🔺)	6.015s (+12.6% 🔺)	0.648s	6	3.89x
💻 Local	Next.js (Turbopack)	5.729s (+11.0% 🔺)	6.414s (+6.6% 🔺)	0.685s	5	4.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.785s (+17.3% 🔺)	7.247s (+7.6% 🔺)	1.462s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.222s (+7.4% 🔺)	8.268s (+9.1% 🔺)	2.046s	4	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.566s (-7.0% 🟢)	1.023s (+1.6%)	0.457s	59	1.00x
🐘 Postgres	Express	0.569s (-14.6% 🟢)	1.041s (-0.6%)	0.472s	58	1.01x
💻 Local	Nitro	0.583s (-27.6% 🟢)	1.005s (-16.6% 🟢)	0.422s	60	1.03x
💻 Local	Express	0.598s (-8.8% 🟢)	1.005s (-3.3%)	0.407s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.664s (-18.3% 🟢)	1.023s (+1.7%)	0.360s	59	1.17x
💻 Local	Next.js (Turbopack)	0.850s (+22.1% 🔺)	1.005s (~)	0.155s	60	1.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.519s (-26.0% 🟢)	6.990s (-26.6% 🟢)	1.471s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.864s (+16.2% 🔺)	7.891s (+15.2% 🔺)	2.027s	8	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.315s (-7.2% 🟢)	2.008s (~)	0.693s	45	1.00x
🐘 Postgres	Express	1.382s (-10.0% 🟢)	2.029s (-5.7% 🟢)	0.647s	45	1.05x
💻 Local	Nitro	1.516s (+3.6%)	2.006s (~)	0.490s	45	1.15x
💻 Local	Express	1.542s (-3.1%)	2.007s (-1.1%)	0.465s	45	1.17x
🐘 Postgres	Next.js (Turbopack)	1.576s (-18.9% 🟢)	2.007s (-7.7% 🟢)	0.431s	45	1.20x
💻 Local	Next.js (Turbopack)	2.054s (+18.8% 🔺)	3.008s (+48.3% 🔺)	0.954s	30	1.56x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	13.967s (+5.7% 🔺)	15.727s (+1.6%)	1.760s	6	1.00x
▲ Vercel	Next.js (Turbopack)	15.435s (+4.5%)	17.236s (+1.8%)	1.801s	6	1.11x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.584s (-11.3% 🟢)	3.034s (-7.5% 🟢)	0.449s	40	1.00x
🐘 Postgres	Express	2.692s (-7.5% 🟢)	3.136s (-11.4% 🟢)	0.444s	39	1.04x
🐘 Postgres	Next.js (Turbopack)	3.127s (-19.0% 🟢)	4.009s (-1.7%)	0.882s	30	1.21x
💻 Local	Nitro	3.272s (+2.1%)	3.978s (-0.8%)	0.705s	31	1.27x
💻 Local	Express	3.337s (-2.4%)	4.010s (~)	0.673s	30	1.29x
💻 Local	Next.js (Turbopack)	4.322s (+15.9% 🔺)	5.010s (+21.9% 🔺)	0.688s	24	1.67x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	26.486s (-11.1% 🟢)	28.519s (-10.8% 🟢)	2.033s	5	1.00x
▲ Vercel	Next.js (Turbopack)	29.701s (+10.1% 🔺)	32.280s (+10.3% 🔺)	2.579s	4	1.12x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.215s (-8.5% 🟢)	1.006s (~)	0.791s	60	1.00x
🐘 Postgres	Express	0.221s (-12.3% 🟢)	1.006s (~)	0.785s	60	1.03x
🐘 Postgres	Next.js (Turbopack)	0.240s (-15.0% 🟢)	1.006s (~)	0.766s	60	1.11x
💻 Local	Nitro	0.466s (+9.8% 🔺)	1.022s (+1.8%)	0.556s	59	2.16x
💻 Local	Express	0.469s (+1.0%)	1.005s (~)	0.535s	60	2.18x
💻 Local	Next.js (Turbopack)	0.581s (-4.9%)	1.005s (-3.3%)	0.424s	60	2.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	2.282s (+3.7%)	3.811s (-9.7% 🟢)	1.530s	16	1.00x
▲ Vercel	Nitro	2.283s (-2.6%)	3.784s (-12.7% 🟢)	1.501s	16	1.00x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.337s (-9.1% 🟢)	1.007s (~)	0.669s	90	1.00x
🐘 Postgres	Express	0.346s (+2.2%)	1.007s (~)	0.660s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.419s (-13.1% 🟢)	1.006s (~)	0.587s	90	1.24x
💻 Local	Nitro	2.112s (+2.3%)	2.580s (-2.2%)	0.469s	35	6.26x
💻 Local	Express	2.217s (+1.2%)	2.797s (-0.9%)	0.580s	33	6.58x
💻 Local	Next.js (Turbopack)	2.325s (-5.1% 🟢)	3.009s (-3.2%)	0.684s	30	6.90x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.265s (-88.0% 🟢)	6.802s (-85.2% 🟢)	1.536s	14	1.00x
▲ Vercel	Next.js (Turbopack)	5.662s (-9.7% 🟢)	7.304s (-14.0% 🟢)	1.641s	13	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.662s (-6.4% 🟢)	1.007s (~)	0.345s	120	1.00x
🐘 Postgres	Express	0.666s (+6.4% 🔺)	1.006s (-4.6%)	0.341s	120	1.01x
🐘 Postgres	Next.js (Turbopack)	0.817s (-16.6% 🟢)	1.006s (-37.4% 🟢)	0.189s	120	1.23x
💻 Local	Nitro	9.727s (+11.7% 🔺)	10.194s (+9.2% 🔺)	0.467s	12	14.69x
💻 Local	Express	9.905s (-4.0%)	10.446s (-3.9%)	0.540s	12	14.96x
💻 Local	Next.js (Turbopack)	10.259s (-0.5%)	10.936s (-3.2%)	0.677s	11	15.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	15.846s (-94.9% 🟢)	17.641s (-94.4% 🟢)	1.795s	8	1.00x
▲ Vercel	Next.js (Turbopack)	18.329s (-88.5% 🟢)	20.381s (-87.4% 🟢)	2.052s	6	1.16x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.157s (-3.1%)	2.001s (~)	0.001s (-97.7% 🟢)	2.011s (-1.6%)	0.854s	10	1.00x
💻 Local	Express	1.162s (-0.5%)	2.005s (~)	0.011s (-18.0% 🟢)	2.018s (~)	0.856s	10	1.00x
💻 Local	Nitro	1.164s (+1.2%)	2.005s (~)	0.011s (+5.0%)	2.018s (~)	0.853s	10	1.01x
🐘 Postgres	Nitro	1.169s (-1.0%)	1.997s (~)	0.001s (-21.4% 🟢)	2.010s (~)	0.840s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.202s (-2.6%)	2.000s (~)	0.001s (-13.3% 🟢)	2.010s (~)	0.807s	10	1.04x
💻 Local	Next.js (Turbopack)	1.208s (+3.4%)	2.004s (~)	0.012s (+18.8% 🔺)	2.020s (~)	0.812s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.560s (+18.3% 🔺)	3.481s (+1.9%)	1.422s (+175.7% 🔺)	5.458s (+22.1% 🔺)	2.898s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.635s (+17.5% 🔺)	3.564s (~)	1.068s (-91.4% 🟢)	5.102s (-69.1% 🟢)	2.467s	10	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.571s (-9.6% 🟢)	2.002s (-6.6% 🟢)	0.005s (+75.1% 🔺)	2.027s (-6.2% 🟢)	0.456s	30	1.00x
🐘 Postgres	Nitro	1.572s (-5.5% 🟢)	2.003s (~)	0.005s (+34.2% 🔺)	2.028s (~)	0.456s	30	1.00x
💻 Local	Nitro	1.581s (-9.3% 🟢)	2.010s (~)	0.013s (+42.7% 🔺)	2.026s (-7.9% 🟢)	0.445s	30	1.01x
💻 Local	Express	1.600s (-2.2%)	2.011s (~)	0.014s (+26.9% 🔺)	2.027s (~)	0.427s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.648s (-6.5% 🟢)	2.009s (~)	0.004s (+8.3% 🔺)	2.025s (~)	0.376s	30	1.05x
💻 Local	Next.js (Turbopack)	1.717s (+4.6%)	2.009s (~)	0.013s (+29.4% 🔺)	2.025s (~)	0.308s	30	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.716s (-0.5%)	6.856s (-9.8% 🟢)	0.237s (-29.9% 🟢)	7.551s (-11.0% 🟢)	1.835s	8	1.00x
▲ Vercel	Next.js (Turbopack)	5.946s (-6.7% 🟢)	7.117s (-10.3% 🟢)	0.202s (-44.2% 🟢)	7.771s (-12.3% 🟢)	1.825s	8	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.663s (-8.2% 🟢)	1.011s (-1.9%)	0.000s (-67.2% 🟢)	1.024s (-2.2%)	0.361s	59	1.00x
🐘 Postgres	Express	0.692s (-29.2% 🟢)	1.012s (-29.1% 🟢)	0.000s (-52.5% 🟢)	1.033s (-28.7% 🟢)	0.340s	59	1.04x
🐘 Postgres	Next.js (Turbopack)	0.818s (-1.8%)	1.071s (~)	0.000s (-1.8%)	1.078s (~)	0.260s	57	1.23x
💻 Local	Nitro	1.408s (+4.1%)	2.013s (~)	0.000s (-33.3% 🟢)	2.016s (~)	0.607s	30	2.12x
💻 Local	Next.js (Turbopack)	1.448s (~)	2.013s (~)	0.000s (-37.5% 🟢)	2.016s (~)	0.568s	30	2.18x
💻 Local	Express	1.450s (-2.2%)	2.014s (~)	0.000s (-6.7% 🟢)	2.017s (~)	0.567s	30	2.19x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.079s (-14.5% 🟢)	4.197s (-17.2% 🟢)	0.000s (NaN%)	4.623s (-17.9% 🟢)	1.544s	13	1.00x
▲ Vercel	Next.js (Turbopack)	3.151s (-4.8%)	4.387s (-10.4% 🟢)	0.000s (NaN%)	4.831s (-11.5% 🟢)	1.680s	13	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.289s (-8.6% 🟢)	2.034s (+1.9%)	0.000s (NaN%)	2.052s (+2.0%)	0.763s	30	1.00x
🐘 Postgres	Express	1.468s (-9.1% 🟢)	2.140s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.169s (-4.8%)	0.701s	28	1.14x
🐘 Postgres	Next.js (Turbopack)	1.603s (-7.2% 🟢)	2.225s (-1.6%)	0.000s (NaN%)	2.247s (-1.0%)	0.644s	27	1.24x
💻 Local	Next.js (Turbopack)	2.746s (-14.6% 🟢)	3.287s (-15.7% 🟢)	0.000s (+34.7% 🔺)	3.290s (-15.6% 🟢)	0.545s	19	2.13x
💻 Local	Nitro	3.180s (+2.1%)	3.901s (~)	0.000s (+75.0% 🔺)	3.904s (~)	0.724s	16	2.47x
💻 Local	Express	3.309s (-0.7%)	3.966s (+3.3%)	0.001s (+66.7% 🔺)	3.969s (+3.3%)	0.660s	16	2.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	4.830s (-31.4% 🟢)	6.389s (-25.5% 🟢)	0.000s (NaN%)	6.814s (-25.0% 🟢)	1.983s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.038s (-2.5%)	6.197s (-7.2% 🟢)	0.000s (-100.0% 🟢)	6.657s (-7.6% 🟢)	1.620s	10	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	15/21
🐘 Postgres	Nitro	16/21
▲ Vercel	Nitro	19/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	20/21
Nitro	🐘 Postgres	16/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-11T10:22:34Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	1264	2	219	1485
✅ 💻 Local Development	1671	0	219	1890
✅ 📦 Local Production	1671	0	219	1890
✅ 🐘 Local Postgres	1671	0	219	1890
✅ 🪟 Windows	135	0	0	135
✅ 📋 Other	769	0	176	945
Total	7181	2	1052	8235

❌ Failed Tests

▲ Vercel Production (2 failed)

astro (1 failed):

outputStreamWorkflow positive startIndex (skips first chunk)

express (1 failed):

fibonacciWorkflow - recursive workflow composition via start() | wrun_01KTV3RAK0WZJ5E3J6CG2TAGHH | 🔍 observability

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro	108	1	26
✅ example	109	0	26
❌ express	108	1	26
✅ fastify	109	0	26
✅ hono	109	0	26
✅ nextjs-turbopack	133	0	2
✅ nextjs-webpack	133	0	2
✅ nitro	109	0	26
✅ nuxt	109	0	26
✅ sveltekit	128	0	7
✅ vite	109	0	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts

…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)

…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx

* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)

VaguelySerious · 2026-06-11T10:22:14Z

Summary

When an E2E Vercel Prod Tests lane fails, CI now fetches the runtime request logs of the deployment under test and uploads them as part of the existing e2e-results-vercel-prod-* artifact, with the most relevant rows echoed into the job log.

Runtime logs are the missing piece when triaging these flakes: the harness already captures workflow run state and event timelines, but not what the deployed functions actually logged (crashes, unhandled rejections, cold-start failures). Today that information is simply lost.

How it works

A new .github/scripts/fetch-e2e-runtime-logs.mjs runs with if: failure() after the test step, using the same request-logs API as vercel logs.
The deployment is shared with concurrent CI runs and a test window can span tens of thousands of request rows, so instead of a bulk dump the script makes targeted queries:
1. an error/fatal-level sweep of the test window (server-side level filter), and
2. a per-failed-run query for each workflow run ID found in the e2e-failures-*.json sidecar (each request row carries a workflowRunId).
Rows are deduped by request ID and written to e2e-runtime-logs-{app}-vercel.json; the aggregation script excludes the new sidecar from vitest-result globbing.
The script never fails the job (exit 0 on any error) and no-ops gracefully when env/sidecars are missing.

Validation

Ran the script locally against the deployment from a real failed lane (E2E Vercel Prod (nitro), run 27291235666, 2026-06-10). It captured 23 targeted rows including the failed test's run — and immediately surfaced the kind of evidence this exists for:

[error] Unhandled Rejection: TypeError: fetch failed
[fatal] Node.js process exited with exit status: 128.

i.e. the deployed function process crashed mid-test — the failure mode addressed by #2336, invisible until now from the CI side.

Empty changeset: CI tooling only, no published packages touched.

🤖 Generated with Claude Code

When the e2e test step fails, fetch the deployment's runtime request logs via the same request-logs API the vercel CLI uses — an error/fatal-level sweep of the test window plus per-failed-run queries keyed by the workflow run IDs from the failures sidecar — and upload them as a job artifact. Runtime logs were the missing diagnostic: the harness records run state and event timelines, but not what the deployed functions logged (crashes, unhandled rejections, cold-start failures). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

vercel · 2026-06-11T10:22:17Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-nextjs-workflow-webpack	Ready	Preview, Comment	Jun 11, 2026 10:25am
example-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-astro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-express-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-fastify-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-hono-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nitro-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-nuxt-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-sveltekit-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-tanstack-start-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workbench-vite-workflow	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-docs	Ready	Preview, Comment, Open in v0	Jun 11, 2026 10:25am
workflow-swc-playground	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-tarballs	Ready	Preview, Comment	Jun 11, 2026 10:25am
workflow-web	Ready	Preview, Comment	Jun 11, 2026 10:25am

changeset-bot · 2026-06-11T10:22:20Z

🦋 Changeset detected

Latest commit: 0a43289

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-06-11T10:22:30Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	0.041s (-3.3%)	1.006s (~)	0.965s	10	1.00x
💻 Local	Express	0.048s (+10.2% 🔺)	1.007s (~)	0.960s	10	1.15x
🐘 Postgres	Nitro	0.056s (-11.9% 🟢)	1.012s (~)	0.957s	10	1.35x
🐘 Postgres	Express	0.059s (-10.4% 🟢)	1.012s (~)	0.953s	10	1.43x
💻 Local	Next.js (Turbopack)	0.060s (+9.6% 🔺)	1.006s (~)	0.946s	10	1.46x
🐘 Postgres	Next.js (Turbopack)	0.062s (-11.7% 🟢)	1.011s (~)	0.949s	10	1.49x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	0.267s (+2.0%)	2.346s (-3.7%)	2.079s	10	1.00x
▲ Vercel	Next.js (Turbopack)	0.282s (-14.3% 🟢)	2.592s (+10.7% 🔺)	2.310s	10	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	1.094s (~)	2.006s (~)	0.913s	10	1.00x
💻 Local	Express	1.097s (~)	2.007s (~)	0.909s	10	1.00x
🐘 Postgres	Express	1.103s (+1.0%)	2.010s (~)	0.907s	10	1.01x
🐘 Postgres	Nitro	1.107s (-0.6%)	2.009s (~)	0.903s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.125s (-1.4%)	2.010s (~)	0.884s	10	1.03x
💻 Local	Next.js (Turbopack)	1.130s (+1.9%)	2.006s (~)	0.876s	10	1.03x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	1.695s (+8.2% 🔺)	3.520s (~)	1.825s	10	1.00x
▲ Vercel	Next.js (Turbopack)	1.772s (+6.4% 🔺)	3.766s (-7.6% 🟢)	1.994s	10	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Nitro	10.520s (~)	11.023s (~)	0.503s	3	1.00x
🐘 Postgres	Nitro	10.541s (~)	11.019s (~)	0.478s	3	1.00x
🐘 Postgres	Express	10.563s (-1.4%)	11.015s (-3.0%)	0.452s	3	1.00x
💻 Local	Express	10.586s (~)	11.024s (~)	0.438s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.660s (-1.5%)	11.022s (~)	0.362s	3	1.01x
💻 Local	Next.js (Turbopack)	10.771s (+1.6%)	11.024s (~)	0.253s	3	1.02x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	14.355s (+7.8% 🔺)	15.964s (+2.4%)	1.609s	2	1.00x
▲ Vercel	Next.js (Turbopack)	15.120s (+12.0% 🔺)	16.716s (+3.8%)	1.596s	2	1.05x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	13.755s (-1.1%)	14.028s (-1.4%)	0.272s	5	1.00x
🐘 Postgres	Nitro	13.800s (~)	14.017s (~)	0.218s	5	1.00x
💻 Local	Nitro	13.804s (+0.6%)	14.026s (~)	0.222s	5	1.00x
🐘 Postgres	Express	13.914s (+0.6%)	14.019s (-1.5%)	0.105s	5	1.01x
🐘 Postgres	Next.js (Turbopack)	14.024s (-3.9%)	14.821s (-1.3%)	0.797s	5	1.02x
💻 Local	Next.js (Turbopack)	14.304s (+2.0%)	15.029s (+2.8%)	0.725s	4	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	22.983s (-9.9% 🟢)	24.662s (-10.7% 🟢)	1.679s	3	1.00x
▲ Vercel	Next.js (Turbopack)	23.428s (-8.2% 🟢)	25.672s (-5.6% 🟢)	2.244s	3	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	12.350s (-3.0%)	13.016s (-2.2%)	0.665s	7	1.00x
🐘 Postgres	Nitro	12.422s (-2.5%)	13.019s (~)	0.596s	7	1.01x
💻 Local	Nitro	12.439s (~)	13.026s (~)	0.586s	7	1.01x
💻 Local	Express	12.472s (-1.0%)	13.027s (~)	0.554s	7	1.01x
🐘 Postgres	Next.js (Turbopack)	13.101s (-4.8%)	13.730s (-2.1%)	0.629s	7	1.06x
💻 Local	Next.js (Turbopack)	13.657s (+5.5% 🔺)	14.027s (+5.4% 🔺)	0.369s	7	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	32.711s (+12.6% 🔺)	34.708s (+10.6% 🔺)	1.997s	3	1.00x
▲ Vercel	Next.js (Turbopack)	33.765s (+14.0% 🔺)	36.258s (+13.8% 🔺)	2.493s	3	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.180s (-1.7%)	2.007s (-0.7%)	0.828s	15	1.00x
💻 Local	Nitro	1.180s (-2.7%)	2.006s (~)	0.826s	15	1.00x
🐘 Postgres	Nitro	1.195s (~)	2.008s (~)	0.813s	15	1.01x
💻 Local	Express	1.264s (~)	2.006s (~)	0.742s	15	1.07x
🐘 Postgres	Next.js (Turbopack)	1.280s (+2.3%)	2.074s (+3.3%)	0.795s	15	1.08x
💻 Local	Next.js (Turbopack)	1.307s (+6.8% 🔺)	2.006s (~)	0.700s	15	1.11x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.615s (-5.6% 🟢)	4.027s (-7.2% 🟢)	1.412s	8	1.00x
▲ Vercel	Next.js (Turbopack)	3.199s (+19.0% 🔺)	4.592s (+8.8% 🔺)	1.392s	7	1.22x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.245s (-1.1%)	2.007s (~)	0.762s	15	1.00x
🐘 Postgres	Express	1.272s (-4.1%)	2.007s (~)	0.735s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.349s (-4.3%)	2.007s (~)	0.658s	15	1.08x
💻 Local	Nitro	1.715s (+0.6%)	2.006s (-3.2%)	0.291s	15	1.38x
💻 Local	Express	1.748s (-7.1% 🟢)	2.006s (-9.7% 🟢)	0.258s	15	1.40x
💻 Local	Next.js (Turbopack)	1.836s (+6.4% 🔺)	2.074s (+3.4%)	0.238s	15	1.48x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.676s (-9.7% 🟢)	5.193s (-16.4% 🟢)	1.517s	6	1.00x
▲ Vercel	Next.js (Turbopack)	4.162s (+1.4%)	5.659s (-7.8% 🟢)	1.496s	6	1.13x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.383s (-1.6%)	2.008s (~)	0.625s	15	1.00x
🐘 Postgres	Express	1.402s (+0.6%)	2.007s (~)	0.605s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.596s (-9.3% 🟢)	2.143s (-6.6% 🟢)	0.547s	15	1.15x
💻 Local	Nitro	4.620s (-2.1%)	5.012s (~)	0.391s	6	3.34x
💻 Local	Express	4.638s (-12.5% 🟢)	5.345s (-11.1% 🟢)	0.707s	6	3.35x
💻 Local	Next.js (Turbopack)	5.511s (+25.4% 🔺)	6.013s (+20.0% 🔺)	0.501s	5	3.98x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.462s (-18.9% 🟢)	7.360s (-15.5% 🟢)	1.898s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.898s (+17.5% 🔺)	8.815s (+13.3% 🔺)	1.917s	4	1.26x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.187s (-1.1%)	2.008s (~)	0.821s	15	1.00x
🐘 Postgres	Express	1.188s (-1.2%)	2.008s (~)	0.820s	15	1.00x
🐘 Postgres	Next.js (Turbopack)	1.200s (-5.2% 🟢)	2.009s (~)	0.808s	15	1.01x
💻 Local	Next.js (Turbopack)	1.340s (+2.6%)	2.007s (~)	0.667s	15	1.13x
💻 Local	Nitro	1.485s (-3.8%)	2.006s (~)	0.521s	15	1.25x
💻 Local	Express	1.507s (-9.0% 🟢)	2.007s (-3.2%)	0.500s	15	1.27x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.456s (-8.1% 🟢)	3.852s (-11.1% 🟢)	1.396s	8	1.00x
▲ Vercel	Next.js (Turbopack)	2.655s (-39.3% 🟢)	4.323s (-31.3% 🟢)	1.668s	7	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.235s (-3.1%)	2.008s (~)	0.772s	15	1.00x
🐘 Postgres	Express	1.250s (+0.5%)	2.009s (~)	0.759s	15	1.01x
🐘 Postgres	Next.js (Turbopack)	1.316s (-5.8% 🟢)	2.007s (~)	0.690s	15	1.07x
💻 Local	Next.js (Turbopack)	2.020s (~)	2.592s (+3.4%)	0.572s	12	1.63x
💻 Local	Nitro	2.031s (+15.6% 🔺)	2.591s (+25.0% 🔺)	0.560s	12	1.64x
💻 Local	Express	2.040s (-4.0%)	2.470s (-4.6%)	0.430s	13	1.65x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	3.367s (-25.5% 🟢)	4.908s (-20.4% 🟢)	1.541s	7	1.00x
▲ Vercel	Nitro	3.602s (-12.0% 🟢)	5.404s (-10.0% 🟢)	1.802s	6	1.07x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.378s (-5.7% 🟢)	2.007s (~)	0.629s	15	1.00x
🐘 Postgres	Express	1.400s (-6.7% 🟢)	2.008s (-16.2% 🟢)	0.608s	15	1.02x
🐘 Postgres	Next.js (Turbopack)	1.616s (-2.4%)	2.151s (+3.7%)	0.535s	14	1.17x
💻 Local	Express	5.184s (-11.6% 🟢)	5.848s (-5.9% 🟢)	0.664s	6	3.76x
💻 Local	Nitro	5.367s (+13.2% 🔺)	6.015s (+12.6% 🔺)	0.648s	6	3.89x
💻 Local	Next.js (Turbopack)	5.729s (+11.0% 🔺)	6.414s (+6.6% 🔺)	0.685s	5	4.16x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.785s (+17.3% 🔺)	7.247s (+7.6% 🔺)	1.462s	5	1.00x
▲ Vercel	Next.js (Turbopack)	6.222s (+7.4% 🔺)	8.268s (+9.1% 🔺)	2.046s	4	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.566s (-7.0% 🟢)	1.023s (+1.6%)	0.457s	59	1.00x
🐘 Postgres	Express	0.569s (-14.6% 🟢)	1.041s (-0.6%)	0.472s	58	1.01x
💻 Local	Nitro	0.583s (-27.6% 🟢)	1.005s (-16.6% 🟢)	0.422s	60	1.03x
💻 Local	Express	0.598s (-8.8% 🟢)	1.005s (-3.3%)	0.407s	60	1.06x
🐘 Postgres	Next.js (Turbopack)	0.664s (-18.3% 🟢)	1.023s (+1.7%)	0.360s	59	1.17x
💻 Local	Next.js (Turbopack)	0.850s (+22.1% 🔺)	1.005s (~)	0.155s	60	1.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.519s (-26.0% 🟢)	6.990s (-26.6% 🟢)	1.471s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.864s (+16.2% 🔺)	7.891s (+15.2% 🔺)	2.027s	8	1.06x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.315s (-7.2% 🟢)	2.008s (~)	0.693s	45	1.00x
🐘 Postgres	Express	1.382s (-10.0% 🟢)	2.029s (-5.7% 🟢)	0.647s	45	1.05x
💻 Local	Nitro	1.516s (+3.6%)	2.006s (~)	0.490s	45	1.15x
💻 Local	Express	1.542s (-3.1%)	2.007s (-1.1%)	0.465s	45	1.17x
🐘 Postgres	Next.js (Turbopack)	1.576s (-18.9% 🟢)	2.007s (-7.7% 🟢)	0.431s	45	1.20x
💻 Local	Next.js (Turbopack)	2.054s (+18.8% 🔺)	3.008s (+48.3% 🔺)	0.954s	30	1.56x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	13.967s (+5.7% 🔺)	15.727s (+1.6%)	1.760s	6	1.00x
▲ Vercel	Next.js (Turbopack)	15.435s (+4.5%)	17.236s (+1.8%)	1.801s	6	1.11x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.584s (-11.3% 🟢)	3.034s (-7.5% 🟢)	0.449s	40	1.00x
🐘 Postgres	Express	2.692s (-7.5% 🟢)	3.136s (-11.4% 🟢)	0.444s	39	1.04x
🐘 Postgres	Next.js (Turbopack)	3.127s (-19.0% 🟢)	4.009s (-1.7%)	0.882s	30	1.21x
💻 Local	Nitro	3.272s (+2.1%)	3.978s (-0.8%)	0.705s	31	1.27x
💻 Local	Express	3.337s (-2.4%)	4.010s (~)	0.673s	30	1.29x
💻 Local	Next.js (Turbopack)	4.322s (+15.9% 🔺)	5.010s (+21.9% 🔺)	0.688s	24	1.67x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	26.486s (-11.1% 🟢)	28.519s (-10.8% 🟢)	2.033s	5	1.00x
▲ Vercel	Next.js (Turbopack)	29.701s (+10.1% 🔺)	32.280s (+10.3% 🔺)	2.579s	4	1.12x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.215s (-8.5% 🟢)	1.006s (~)	0.791s	60	1.00x
🐘 Postgres	Express	0.221s (-12.3% 🟢)	1.006s (~)	0.785s	60	1.03x
🐘 Postgres	Next.js (Turbopack)	0.240s (-15.0% 🟢)	1.006s (~)	0.766s	60	1.11x
💻 Local	Nitro	0.466s (+9.8% 🔺)	1.022s (+1.8%)	0.556s	59	2.16x
💻 Local	Express	0.469s (+1.0%)	1.005s (~)	0.535s	60	2.18x
💻 Local	Next.js (Turbopack)	0.581s (-4.9%)	1.005s (-3.3%)	0.424s	60	2.70x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Next.js (Turbopack)	2.282s (+3.7%)	3.811s (-9.7% 🟢)	1.530s	16	1.00x
▲ Vercel	Nitro	2.283s (-2.6%)	3.784s (-12.7% 🟢)	1.501s	16	1.00x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Next.js (Turbopack) | Nitro

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.337s (-9.1% 🟢)	1.007s (~)	0.669s	90	1.00x
🐘 Postgres	Express	0.346s (+2.2%)	1.007s (~)	0.660s	90	1.03x
🐘 Postgres	Next.js (Turbopack)	0.419s (-13.1% 🟢)	1.006s (~)	0.587s	90	1.24x
💻 Local	Nitro	2.112s (+2.3%)	2.580s (-2.2%)	0.469s	35	6.26x
💻 Local	Express	2.217s (+1.2%)	2.797s (-0.9%)	0.580s	33	6.58x
💻 Local	Next.js (Turbopack)	2.325s (-5.1% 🟢)	3.009s (-3.2%)	0.684s	30	6.90x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.265s (-88.0% 🟢)	6.802s (-85.2% 🟢)	1.536s	14	1.00x
▲ Vercel	Next.js (Turbopack)	5.662s (-9.7% 🟢)	7.304s (-14.0% 🟢)	1.641s	13	1.08x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.662s (-6.4% 🟢)	1.007s (~)	0.345s	120	1.00x
🐘 Postgres	Express	0.666s (+6.4% 🔺)	1.006s (-4.6%)	0.341s	120	1.01x
🐘 Postgres	Next.js (Turbopack)	0.817s (-16.6% 🟢)	1.006s (-37.4% 🟢)	0.189s	120	1.23x
💻 Local	Nitro	9.727s (+11.7% 🔺)	10.194s (+9.2% 🔺)	0.467s	12	14.69x
💻 Local	Express	9.905s (-4.0%)	10.446s (-3.9%)	0.540s	12	14.96x
💻 Local	Next.js (Turbopack)	10.259s (-0.5%)	10.936s (-3.2%)	0.677s	11	15.50x

▲ Production (Vercel)

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	15.846s (-94.9% 🟢)	17.641s (-94.4% 🟢)	1.795s	8	1.00x
▲ Vercel	Next.js (Turbopack)	18.329s (-88.5% 🟢)	20.381s (-87.4% 🟢)	2.052s	6	1.16x
▲ Vercel	Express	⚠️missing	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.157s (-3.1%)	2.001s (~)	0.001s (-97.7% 🟢)	2.011s (-1.6%)	0.854s	10	1.00x
💻 Local	Express	1.162s (-0.5%)	2.005s (~)	0.011s (-18.0% 🟢)	2.018s (~)	0.856s	10	1.00x
💻 Local	Nitro	1.164s (+1.2%)	2.005s (~)	0.011s (+5.0%)	2.018s (~)	0.853s	10	1.01x
🐘 Postgres	Nitro	1.169s (-1.0%)	1.997s (~)	0.001s (-21.4% 🟢)	2.010s (~)	0.840s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.202s (-2.6%)	2.000s (~)	0.001s (-13.3% 🟢)	2.010s (~)	0.807s	10	1.04x
💻 Local	Next.js (Turbopack)	1.208s (+3.4%)	2.004s (~)	0.012s (+18.8% 🔺)	2.020s (~)	0.812s	10	1.04x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	2.560s (+18.3% 🔺)	3.481s (+1.9%)	1.422s (+175.7% 🔺)	5.458s (+22.1% 🔺)	2.898s	10	1.00x
▲ Vercel	Next.js (Turbopack)	2.635s (+17.5% 🔺)	3.564s (~)	1.068s (-91.4% 🟢)	5.102s (-69.1% 🟢)	2.467s	10	1.03x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.571s (-9.6% 🟢)	2.002s (-6.6% 🟢)	0.005s (+75.1% 🔺)	2.027s (-6.2% 🟢)	0.456s	30	1.00x
🐘 Postgres	Nitro	1.572s (-5.5% 🟢)	2.003s (~)	0.005s (+34.2% 🔺)	2.028s (~)	0.456s	30	1.00x
💻 Local	Nitro	1.581s (-9.3% 🟢)	2.010s (~)	0.013s (+42.7% 🔺)	2.026s (-7.9% 🟢)	0.445s	30	1.01x
💻 Local	Express	1.600s (-2.2%)	2.011s (~)	0.014s (+26.9% 🔺)	2.027s (~)	0.427s	30	1.02x
🐘 Postgres	Next.js (Turbopack)	1.648s (-6.5% 🟢)	2.009s (~)	0.004s (+8.3% 🔺)	2.025s (~)	0.376s	30	1.05x
💻 Local	Next.js (Turbopack)	1.717s (+4.6%)	2.009s (~)	0.013s (+29.4% 🔺)	2.025s (~)	0.308s	30	1.09x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	5.716s (-0.5%)	6.856s (-9.8% 🟢)	0.237s (-29.9% 🟢)	7.551s (-11.0% 🟢)	1.835s	8	1.00x
▲ Vercel	Next.js (Turbopack)	5.946s (-6.7% 🟢)	7.117s (-10.3% 🟢)	0.202s (-44.2% 🟢)	7.771s (-12.3% 🟢)	1.825s	8	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.663s (-8.2% 🟢)	1.011s (-1.9%)	0.000s (-67.2% 🟢)	1.024s (-2.2%)	0.361s	59	1.00x
🐘 Postgres	Express	0.692s (-29.2% 🟢)	1.012s (-29.1% 🟢)	0.000s (-52.5% 🟢)	1.033s (-28.7% 🟢)	0.340s	59	1.04x
🐘 Postgres	Next.js (Turbopack)	0.818s (-1.8%)	1.071s (~)	0.000s (-1.8%)	1.078s (~)	0.260s	57	1.23x
💻 Local	Nitro	1.408s (+4.1%)	2.013s (~)	0.000s (-33.3% 🟢)	2.016s (~)	0.607s	30	2.12x
💻 Local	Next.js (Turbopack)	1.448s (~)	2.013s (~)	0.000s (-37.5% 🟢)	2.016s (~)	0.568s	30	2.18x
💻 Local	Express	1.450s (-2.2%)	2.014s (~)	0.000s (-6.7% 🟢)	2.017s (~)	0.567s	30	2.19x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	3.079s (-14.5% 🟢)	4.197s (-17.2% 🟢)	0.000s (NaN%)	4.623s (-17.9% 🟢)	1.544s	13	1.00x
▲ Vercel	Next.js (Turbopack)	3.151s (-4.8%)	4.387s (-10.4% 🟢)	0.000s (NaN%)	4.831s (-11.5% 🟢)	1.680s	13	1.02x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.289s (-8.6% 🟢)	2.034s (+1.9%)	0.000s (NaN%)	2.052s (+2.0%)	0.763s	30	1.00x
🐘 Postgres	Express	1.468s (-9.1% 🟢)	2.140s (-5.0% 🟢)	0.000s (+Infinity% 🔺)	2.169s (-4.8%)	0.701s	28	1.14x
🐘 Postgres	Next.js (Turbopack)	1.603s (-7.2% 🟢)	2.225s (-1.6%)	0.000s (NaN%)	2.247s (-1.0%)	0.644s	27	1.24x
💻 Local	Next.js (Turbopack)	2.746s (-14.6% 🟢)	3.287s (-15.7% 🟢)	0.000s (+34.7% 🔺)	3.290s (-15.6% 🟢)	0.545s	19	2.13x
💻 Local	Nitro	3.180s (+2.1%)	3.901s (~)	0.000s (+75.0% 🔺)	3.904s (~)	0.724s	16	2.47x
💻 Local	Express	3.309s (-0.7%)	3.966s (+3.3%)	0.001s (+66.7% 🔺)	3.969s (+3.3%)	0.660s	16	2.57x

▲ Production (Vercel)

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
▲ Vercel	🥇 Nitro	4.830s (-31.4% 🟢)	6.389s (-25.5% 🟢)	0.000s (NaN%)	6.814s (-25.0% 🟢)	1.983s	9	1.00x
▲ Vercel	Next.js (Turbopack)	5.038s (-2.5%)	6.197s (-7.2% 🟢)	0.000s (-100.0% 🟢)	6.657s (-7.6% 🟢)	1.620s	10	1.04x
▲ Vercel	Express	⚠️missing	-	-	-	-	-

🔍 Observability: Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Nitro	15/21
🐘 Postgres	Nitro	16/21
▲ Vercel	Nitro	19/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	20/21
Nitro	🐘 Postgres	16/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Redis + BullMQ: Community world (local development)
🌐 Cloudflare: Community world (local development)
🌐 MySQL: Community world (local development)
🌐 Azure: Community world (local development)
🌐 NATS JetStream: Community world (local development)
🌐 Upstash: Community world (local development)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

github-actions · 2026-06-11T10:22:34Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
❌ ▲ Vercel Production	1264	2	219	1485
✅ 💻 Local Development	1671	0	219	1890
✅ 📦 Local Production	1671	0	219	1890
✅ 🐘 Local Postgres	1671	0	219	1890
✅ 🪟 Windows	135	0	0	135
✅ 📋 Other	769	0	176	945
Total	7181	2	1052	8235

❌ Failed Tests

▲ Vercel Production (2 failed)

astro (1 failed):

outputStreamWorkflow positive startIndex (skips first chunk)

express (1 failed):

fibonacciWorkflow - recursive workflow composition via start() | wrun_01KTV3RAK0WZJ5E3J6CG2TAGHH | 🔍 observability

Details by Category

❌ ▲ Vercel Production

App	Passed	Failed	Skipped
❌ astro	108	1	26
✅ example	109	0	26
❌ express	108	1	26
✅ fastify	109	0	26
✅ hono	109	0	26
✅ nextjs-turbopack	133	0	2
✅ nextjs-webpack	133	0	2
✅ nitro	109	0	26
✅ nuxt	109	0	26
✅ sveltekit	128	0	7
✅ vite	109	0	26

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	110	25
✅ express-stable	110	25
✅ fastify-stable	110	25
✅ hono-stable	110	25
✅ nextjs-turbopack-canary	116	19
✅ nextjs-turbopack-stable-lazy-discovery-disabled	135	0
✅ nextjs-turbopack-stable-lazy-discovery-enabled	135	0
✅ nextjs-webpack-canary	116	19
✅ nextjs-webpack-stable-lazy-discovery-disabled	135	0
✅ nextjs-webpack-stable-lazy-discovery-enabled	135	0
✅ nitro-stable	110	25
✅ nuxt-stable	110	25
✅ sveltekit-stable	129	6
✅ vite-stable	110	25

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	135	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	110	25
✅ e2e-local-dev-tanstack-start-	110	25
✅ e2e-local-postgres-nest-stable	110	25
✅ e2e-local-postgres-tanstack-start-	110	25
✅ e2e-local-prod-nest-stable	110	25
✅ e2e-local-prod-tanstack-start-	110	25
✅ e2e-vercel-prod-tanstack-start	109	26

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: failure
Local Dev: success
Local Prod: success
Local Postgres: success
Windows: success

Check the workflow run for details.

…hook-ready * origin-https/main: (119 commits) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) Patch vulnerable package dependencies (#2301) Deprecate DurableAgent and update it with WorkflowAgent in v5 docs (#2285) [codex] Fix partial world-local exclusive writes (#2296) ... # Conflicts: # packages/core/src/runtime.ts # packages/core/src/runtime/suspension-handler.ts

…t-race-eager-wait * origin/main: docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345)

…docs-run-idempotency * origin-https/main: (115 commits) [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325) Version Packages (beta) (#2254) ... # Conflicts: # docs/content/docs/v4/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/advanced/child-workflows.mdx # docs/content/docs/v5/cookbook/agent-patterns/durable-agent.mdx

* origin/main: [core] V2: unify wait+step queue dispatch in suspension processing (#1925) fix(world-local,world-postgres): make duplicate hook_created idempotent (#2295) docs(observability): remove MVP implementation detail bullet (#2367) fix: settle aborted parallel steps before completing abortParallelWorkflow (#2244) Add native v4 workflow attribute events (#2226) Version Packages (beta) (#2326) [ci] Fix flaky windows unit tests (#2359) Capture Vercel runtime logs when e2e Vercel Prod lanes fail (#2356) Fix e2e failure reporting under vitest 4 and preserve fetch error causes (#2355) [core] Fix process crash from rejected waitUntil promises (#2336) [core] Remove duplicate `waitUntil` for suspension handler async operations (#2345) Prevent local tests from hanging (#2338) feat(core): add optional namespace for queue topic prefix (#2305) [web-shared] Show precise durations in the new trace viewer (#2335) Validate unique workflow step IDs at build time (#2018) Move run attributes into their own detail card (#2327) [core] Forward-port stream reconnect to getReadable level (#2318) [docs] Add "Step executed multiple times" error page (#2310) Fix flickering on the detail panel when navigating the trace viewer (#2325)

VaguelySerious requested a review from a team as a code owner June 11, 2026 10:22

vercelBotdeployed to Preview – example-nextjs-workflow-turbopack June 11, 2026 10:22 View deployment

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VaguelySerious merged commit c000462 into mainJun 11, 2026
112 of 116 checks passed

VaguelySerious deleted the peter/e2e-runtime-log-capture branch June 11, 2026 10:36

VaguelySerious mentioned this pull request Jun 11, 2026
[core] Fix Windows-flaky unit tests (forward-port of #2358) #2359
Merged