[world-vercel] Revert stream close control framing by VaguelySerious · Pull Request #1891 · vercel/workflow

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

VaguelySerious · 2026-05-02T01:03:24Z

This reverts commit 340c085 from #1742 (not yet published to npm)

…er to reconnect to stream (#1742)" This reverts commit 340c085.

changeset-bot · 2026-05-02T01:03:28Z

⚠️ No Changeset found

Latest commit: 77c928c

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vercel · 2026-05-02T01:03:29Z

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

Project	Deployment	Actions	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview, Comment	May 4, 2026 6:19am
example-nextjs-workflow-webpack	Ready	Preview, Comment	May 4, 2026 6:19am
example-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-astro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-express-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-fastify-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-hono-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nitro-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-nuxt-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-sveltekit-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-tanstack-start-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workbench-vite-workflow	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-docs	Ready	Preview, Comment, Open in v0	May 4, 2026 6:19am
workflow-swc-playground	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-tarballs	Ready	Preview, Comment	May 4, 2026 6:19am
workflow-web	Ready	Preview, Comment	May 4, 2026 6:19am

github-actions · 2026-05-02T01:03:36Z

🧪 E2E Test Results

✅ All tests passed

Summary

	Passed	Skipped	Total
✅ ▲ Vercel Production	1011	67	1078
✅ 💻 Local Development	1090	86	1176
✅ 📦 Local Production	1090	86	1176
✅ 🐘 Local Postgres	1090	86	1176
✅ 🪟 Windows	98	0	98
✅ 📋 Other	552	36	588
Total	4931	361	5292

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	91	7
✅ example	91	7
✅ express	91	7
✅ fastify	91	7
✅ hono	91	7
✅ nextjs-turbopack	96	2
✅ nextjs-webpack	96	2
✅ nitro	91	7
✅ nuxt	91	7
✅ sveltekit	91	7
✅ vite	91	7

✅ 💻 Local Development

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	92	6
✅ express-stable	92	6
✅ fastify-stable	92	6
✅ hono-stable	92	6
✅ nextjs-turbopack-canary	79	19
✅ nextjs-turbopack-stable	98	0
✅ nextjs-webpack-canary	79	19
✅ nextjs-webpack-stable	98	0
✅ nitro-stable	92	6
✅ nuxt-stable	92	6
✅ sveltekit-stable	92	6
✅ vite-stable	92	6

✅ 🪟 Windows

App	Passed	Failed	Skipped
✅ nextjs-turbopack	98	0	0

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	92	6
✅ e2e-local-dev-tanstack-start-stable	92	6
✅ e2e-local-postgres-nest-stable	92	6
✅ e2e-local-postgres-tanstack-start-stable	92	6
✅ e2e-local-prod-nest-stable	92	6
✅ e2e-local-prod-tanstack-start-stable	92	6

📋 View full workflow run

github-actions · 2026-05-02T01:03:40Z

📊 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	🥇 Express	0.042s (-6.1% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.046s (+6.5% 🔺)	1.006s (~)	0.960s	10	1.10x
💻 Local	Next.js (Turbopack)	0.052s	1.005s	0.954s	10	1.24x
🐘 Postgres	Next.js (Turbopack)	0.057s	1.010s	0.953s	10	1.37x
🐘 Postgres	Nitro	0.059s (-38.3% 🟢)	1.010s (-3.2%)	0.951s	10	1.41x
🐘 Postgres	Express	0.066s (+12.9% 🔺)	1.010s (~)	0.945s	10	1.57x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.128s	2.007s	0.878s	10	1.00x
💻 Local	Express	1.129s (~)	2.006s (~)	0.877s	10	1.00x
💻 Local	Nitro	1.134s (~)	2.007s (~)	0.873s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	1.138s	2.010s	0.871s	10	1.01x
🐘 Postgres	Nitro	1.145s (~)	2.009s (~)	0.864s	10	1.01x
🐘 Postgres	Express	1.157s (+1.0%)	2.009s (~)	0.852s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.865s	11.025s	0.159s	3	1.00x
🐘 Postgres	Next.js (Turbopack)	10.872s	11.020s	0.148s	3	1.00x
🐘 Postgres	Nitro	10.930s (+0.5%)	11.023s (~)	0.093s	3	1.01x
💻 Local	Express	10.953s (~)	11.022s (~)	0.069s	3	1.01x
💻 Local	Nitro	10.957s (~)	11.024s (~)	0.067s	3	1.01x
🐘 Postgres	Express	10.978s (~)	11.024s (~)	0.046s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.465s	15.023s	0.558s	4	1.00x
🐘 Postgres	Express	14.583s (~)	15.024s (~)	0.441s	4	1.01x
🐘 Postgres	Nitro	14.659s (~)	15.026s (~)	0.367s	4	1.01x
💻 Local	Next.js (Turbopack)	14.784s	15.030s	0.246s	4	1.02x
💻 Local	Express	15.015s (~)	15.279s (+1.7%)	0.265s	4	1.04x
💻 Local	Nitro	15.081s (~)	16.033s (~)	0.952s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.805s	14.021s	0.216s	7	1.00x
🐘 Postgres	Nitro	14.026s (~)	14.595s (+2.0%)	0.570s	7	1.02x
🐘 Postgres	Express	14.050s (~)	14.594s (~)	0.544s	7	1.02x
💻 Local	Express	16.447s (-0.9%)	17.031s (~)	0.585s	6	1.19x
💻 Local	Next.js (Turbopack)	16.622s	17.032s	0.410s	6	1.20x
💻 Local	Nitro	16.962s (+1.1%)	17.366s (+2.0%)	0.404s	6	1.23x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.233s	2.009s	0.777s	15	1.00x
🐘 Postgres	Nitro	1.268s (-0.5%)	2.010s (~)	0.742s	15	1.03x
🐘 Postgres	Express	1.318s (+4.6%)	2.009s (~)	0.691s	15	1.07x
💻 Local	Express	1.535s (+3.1%)	2.073s (+3.4%)	0.538s	15	1.25x
💻 Local	Nitro	1.548s (-5.1% 🟢)	2.005s (-3.3%)	0.457s	15	1.26x
💻 Local	Next.js (Turbopack)	1.566s	2.006s	0.440s	15	1.27x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.339s (-0.5%)	3.010s (~)	0.670s	10	1.00x
🐘 Postgres	Express	2.374s (+0.6%)	3.008s (~)	0.634s	10	1.01x
🐘 Postgres	Next.js (Turbopack)	2.416s	3.009s	0.594s	10	1.03x
💻 Local	Next.js (Turbopack)	2.855s	3.453s	0.598s	9	1.22x
💻 Local	Express	2.898s (-1.9%)	3.677s (+6.5% 🔺)	0.779s	9	1.24x
💻 Local	Nitro	2.916s (-7.2% 🟢)	3.565s (-8.2% 🟢)	0.650s	9	1.25x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.465s (~)	4.010s (~)	0.545s	8	1.00x
🐘 Postgres	Express	3.471s (~)	4.009s (~)	0.538s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.665s	4.013s	0.348s	8	1.06x
💻 Local	Express	7.611s (-8.7% 🟢)	8.024s (-11.1% 🟢)	0.413s	4	2.20x
💻 Local	Nitro	8.479s (+1.6%)	9.028s (~)	0.548s	4	2.45x
💻 Local	Next.js (Turbopack)	8.575s	9.019s	0.444s	4	2.47x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.215s	2.008s	0.793s	15	1.00x
🐘 Postgres	Nitro	1.258s (~)	2.009s (~)	0.751s	15	1.04x
🐘 Postgres	Express	1.259s (~)	2.008s (~)	0.749s	15	1.04x
💻 Local	Express	1.490s (-21.3% 🟢)	2.005s (-15.2% 🟢)	0.516s	15	1.23x
💻 Local	Next.js (Turbopack)	1.538s	2.007s	0.469s	15	1.27x
💻 Local	Nitro	1.566s (-16.1% 🟢)	2.007s (-14.2% 🟢)	0.441s	15	1.29x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.307s (-1.5%)	3.009s (~)	0.703s	10	1.00x
🐘 Postgres	Nitro	2.342s (~)	3.010s (~)	0.668s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	2.392s	3.010s	0.618s	10	1.04x
💻 Local	Express	2.831s (-9.6% 🟢)	3.107s (-17.4% 🟢)	0.277s	10	1.23x
💻 Local	Nitro	3.202s (+4.5%)	4.012s (+3.2%)	0.810s	8	1.39x
💻 Local	Next.js (Turbopack)	3.266s	4.012s	0.746s	8	1.42x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.467s (-0.9%)	4.010s (~)	0.543s	8	1.00x
🐘 Postgres	Nitro	3.471s (~)	4.011s (~)	0.540s	8	1.00x
🐘 Postgres	Next.js (Turbopack)	3.681s	4.011s	0.330s	8	1.06x
💻 Local	Express	8.191s (-6.9% 🟢)	8.774s (-5.4% 🟢)	0.583s	4	2.36x
💻 Local	Next.js (Turbopack)	9.356s	10.025s	0.670s	3	2.70x
💻 Local	Nitro	9.600s (+5.0%)	10.359s (+3.3%)	0.759s	3	2.77x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.791s	1.041s	0.249s	58	1.00x
🐘 Postgres	Express	0.818s (-2.5%)	1.006s (-1.7%)	0.188s	60	1.03x
🐘 Postgres	Nitro	0.825s (+0.6%)	1.023s (+1.6%)	0.198s	59	1.04x
💻 Local	Next.js (Turbopack)	0.904s	1.076s	0.172s	56	1.14x
💻 Local	Nitro	1.027s (+4.7%)	1.855s (+69.6% 🔺)	0.828s	33	1.30x
💻 Local	Express	1.043s (+6.0% 🔺)	1.974s (+83.4% 🔺)	0.931s	31	1.32x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.944s	2.203s	0.259s	41	1.00x
🐘 Postgres	Express	1.953s (-1.2%)	2.174s (-3.7%)	0.220s	42	1.00x
🐘 Postgres	Nitro	1.972s (+2.3%)	2.257s (+7.5% 🔺)	0.285s	40	1.01x
💻 Local	Next.js (Turbopack)	2.831s	3.009s	0.178s	30	1.46x
💻 Local	Nitro	3.098s (+2.1%)	3.967s (+5.5% 🔺)	0.868s	23	1.59x
💻 Local	Express	3.258s (+8.0% 🔺)	4.101s (+14.4% 🔺)	0.842s	22	1.68x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	3.909s	4.109s	0.201s	30	1.00x
🐘 Postgres	Express	3.951s (-1.0%)	4.295s (-1.7%)	0.343s	28	1.01x
🐘 Postgres	Nitro	4.054s (-1.2%)	4.626s (~)	0.573s	26	1.04x
💻 Local	Next.js (Turbopack)	8.864s	9.161s	0.296s	14	2.27x
💻 Local	Express	8.935s (-3.0%)	9.401s (-6.2% 🟢)	0.467s	13	2.29x
💻 Local	Nitro	9.336s (~)	10.019s (~)	0.682s	12	2.39x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.253s	1.007s	0.754s	60	1.00x
🐘 Postgres	Nitro	0.285s (+0.6%)	1.007s (~)	0.722s	60	1.13x
🐘 Postgres	Express	0.300s (+6.4% 🔺)	1.007s (~)	0.707s	60	1.19x
💻 Local	Next.js (Turbopack)	0.558s	1.005s	0.447s	60	2.21x
💻 Local	Express	0.580s (+3.5%)	1.004s (~)	0.424s	60	2.29x
💻 Local	Nitro	0.612s (+1.2%)	1.005s (-1.6%)	0.393s	60	2.42x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.484s	1.006s	0.522s	90	1.00x
🐘 Postgres	Express	0.486s (-4.6%)	1.006s (~)	0.520s	90	1.00x
🐘 Postgres	Nitro	0.490s (-1.3%)	1.007s (~)	0.517s	90	1.01x
💻 Local	Express	2.348s (-6.6% 🟢)	3.008s (~)	0.660s	30	4.85x
💻 Local	Nitro	2.588s (+2.0%)	3.009s (~)	0.422s	30	5.34x
💻 Local	Next.js (Turbopack)	2.704s	3.076s	0.371s	30	5.58x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.776s	1.007s	0.231s	120	1.00x
🐘 Postgres	Express	0.780s (-4.7%)	1.007s (-1.0%)	0.227s	120	1.01x
🐘 Postgres	Nitro	0.783s (-0.9%)	1.007s (~)	0.224s	120	1.01x
💻 Local	Express	10.313s (-7.8% 🟢)	10.936s (-8.4% 🟢)	0.623s	11	13.29x
💻 Local	Nitro	11.219s (~)	11.941s (+2.4%)	0.721s	11	14.46x
💻 Local	Next.js (Turbopack)	11.396s	11.848s	0.451s	11	14.68x

Stream Benchmarks(includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.187s	1.003s	0.013s	1.019s	0.832s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.188s	1.000s	0.001s	1.011s	0.823s	10	1.00x
💻 Local	Nitro	0.214s (~)	1.004s (~)	0.012s (-1.6%)	1.019s (~)	0.805s	10	1.14x
🐘 Postgres	Express	0.216s (+5.4% 🔺)	1.000s (~)	0.001s (-31.3% 🟢)	1.010s (~)	0.794s	10	1.16x
💻 Local	Express	0.217s (+9.0% 🔺)	1.004s (~)	0.010s (-14.9% 🟢)	1.017s (~)	0.800s	10	1.16x
🐘 Postgres	Nitro	0.221s (+7.9% 🔺)	0.994s (-0.5%)	0.001s (-33.3% 🟢)	1.010s (~)	0.789s	10	1.18x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	0.607s (-3.7%)	1.004s (~)	0.004s (+1.8%)	1.022s (~)	0.415s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.609s	1.009s	0.007s	1.024s	0.415s	59	1.00x
🐘 Postgres	Nitro	0.616s (-1.3%)	1.004s (~)	0.004s (-3.3%)	1.022s (~)	0.406s	59	1.01x
💻 Local	Next.js (Turbopack)	0.715s	1.029s	0.014s	1.046s	0.332s	58	1.18x
💻 Local	Express	0.767s (+1.4%)	1.012s (-1.7%)	0.009s (-7.8% 🟢)	1.022s (-1.7%)	0.255s	59	1.26x
💻 Local	Nitro	0.770s (-8.2% 🟢)	1.012s (~)	0.010s (+12.0% 🔺)	1.025s (-8.2% 🟢)	0.255s	59	1.27x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.932s	1.133s	0.000s	1.139s	0.207s	53	1.00x
🐘 Postgres	Express	0.944s (-1.8%)	1.170s (-8.4% 🟢)	0.000s (-54.9% 🟢)	1.184s (-9.4% 🟢)	0.240s	51	1.01x
🐘 Postgres	Nitro	0.959s (-1.0%)	1.166s (-6.5% 🟢)	0.000s (+38.5% 🔺)	1.181s (-6.1% 🟢)	0.222s	52	1.03x
💻 Local	Express	1.224s (~)	2.022s (~)	0.000s (+30.0% 🔺)	2.024s (~)	0.800s	30	1.31x
💻 Local	Nitro	1.260s (+3.1%)	2.023s (~)	0.000s (+233.3% 🔺)	2.025s (~)	0.765s	30	1.35x
💻 Local	Next.js (Turbopack)	1.300s	2.022s	0.000s	2.025s	0.725s	30	1.39x

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

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	1.684s (-5.0%)	2.142s (-1.6%)	0.000s (NaN%)	2.155s (-2.0%)	0.471s	28	1.00x
🐘 Postgres	Nitro	1.746s (-2.6%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.367s	29	1.04x
🐘 Postgres	Next.js (Turbopack)	1.859s	2.106s	0.000s	2.116s	0.257s	29	1.10x
💻 Local	Express	2.894s (-16.5% 🟢)	3.085s (-23.5% 🟢)	0.001s (-12.5% 🟢)	3.088s (-23.5% 🟢)	0.194s	20	1.72x
💻 Local	Next.js (Turbopack)	3.085s	3.909s	0.000s	3.912s	0.827s	16	1.83x
💻 Local	Nitro	3.246s (-4.2%)	3.269s (-18.9% 🟢)	0.001s (+10.3% 🔺)	3.566s (-11.6% 🟢)	0.320s	17	1.93x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Express	11/21
🐘 Postgres	Next.js (Turbopack)	15/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

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)

📋 View full workflow run

❌ Some benchmark jobs failed:

Local: success
Postgres: success
Vercel: failure

Check the workflow run for details.

This reverts commit 340c085.

…ovements * origin/main: web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # tarballs/vercel.json

…ignal * origin/main: [core] Skip inline step execution when suspension also has a wait (#1924) [errors] Replace chalk import in @workfow/errors with inline ANSI shim (#1915) Fix compatibility with Zod 4.4.x (#1902) Serialize `run_failed`/`step_failed` errors through serialization pipeline (#1851) tarballs: redesign preview tarballs index page (#1911) Remove extra changeset (#1922) Add stable Next.js eager and lazy test coverage (#1747) Enforce per-(run, correlation) uniqueness for entity-creating events in world-postgres (#1878) fix(world-vercel): add default request timeout to workflow-server HTTP calls (#1807) Allow disabling step sourcemap with new `sourcemap` option in builders (#1842) [ci] Enable Vercel-prod e2e for tanstack-start (#1904) web: configure vercelPreset() for Vercel deployments (#1815) [core] Combine flow+step bundle and process steps eagerly (#1338) [world-vercel] Revert stream close control framing (#1891) [tarballs] Use turbo to build workspace deps before packing (#1908) # Conflicts: # packages/core/src/runtime/step-handler.test.ts # packages/core/src/runtime/step-handler.ts # packages/core/src/runtime/suspension-handler.ts # packages/core/src/step.test.ts # packages/world-local/src/storage/events-storage.ts # packages/world-postgres/src/drizzle/migrations/meta/_journal.json

Revert "[world-vercel] Use stream close control frame to decide wheth…
b3cc678
…er to reconnect to stream (#1742)" This reverts commit 340c085.

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VaguelySerious changed the title ~~[world-vercel] Revert stream close control frame~~[world-vercel] Revert stream close control framingMay 2, 2026

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Merge branch 'main' into peter/undo-stream
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Merge branch 'main' into peter/undo-stream
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VaguelySerious merged commit 9d94cf4 into mainMay 4, 2026
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VaguelySerious deleted the peter/undo-stream branch May 4, 2026 06:29

ziyak97 pushed a commit to ziyak97/workflow that referenced this pull request May 4, 2026
[world-vercel] Revert stream close control framing (vercel#1891)
6a819a9
This reverts commit 340c085.