[test] Benchmark replay paging with workflow-server #632 - #2977

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[test] Benchmark replay paging with workflow-server #632#2977
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@NathanColosimoNathanColosimo commented Jul 17, 2026

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Test-only combined benchmark

This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.

WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.

This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.

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ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
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workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am

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🦋 Changeset detected

Latest commit: fbee45e

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

This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch

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🧪 E2E Test Results

❌ Some tests failed

Summary

PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442

❌ Failed Tests

▲ Vercel Production (1 failed)

nextjs-turbopack (1 failed):

  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability

Details by Category

❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700

📋 View full workflow run

❌ Some E2E test jobs failed:

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

Check the workflow run for details.

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📊 Workflow Benchmarks

commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs

Backend: vercel · app: nextjs-turbopack

MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30

Avg deltas compare against the most recent benchmark run on main at the time of this run.

Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)

Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges

🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120

TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.

@NathanColosimoNathanColosimo mentioned this pull request Jul 17, 2026
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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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[test] Benchmark replay paging with workflow-server #632 - #2977
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NathanColosimo wants to merge 2 commits into
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codex/benchmark-replay-page-server-632
Closed
[test] Benchmark replay paging with workflow-server #632#2977
NathanColosimo wants to merge 2 commits into
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Test-only combined benchmark
This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.
WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.
This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.
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vercelBot
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Jul 17, 2026•

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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-tarballsReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am
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🦋 Changeset detected
Latest commit: fbee45e
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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🧪 E2E Test Results
❌ Some tests failed
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442
❌ Failed Tests
▲ Vercel Production (1 failed)
nextjs-turbopack (1 failed):
  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700
📋 View full workflow run
❌ Some E2E test jobs failed:
  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success
Check the workflow run for details.
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📊 Workflow Benchmarks
commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30
Avg deltas compare against the most recent benchmark run on main at the time of this run.
Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)
Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges
🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120
TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.
@NathanColosimoNathanColosimo
mentioned this pull request
Jul 17, 2026
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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
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Skip to content
[test] Benchmark replay paging with workflow-server #632 - #2977
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codex/benchmark-replay-page-server-632
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[test] Benchmark replay paging with workflow-server #632#2977
NathanColosimo wants to merge 2 commits into
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Test-only combined benchmark
This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.
WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.
This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.
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Jul 17, 2026•

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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-tarballsReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am
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🦋 Changeset detected
Latest commit: fbee45e
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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🧪 E2E Test Results
❌ Some tests failed
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442
❌ Failed Tests
▲ Vercel Production (1 failed)
nextjs-turbopack (1 failed):
  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700
📋 View full workflow run
❌ Some E2E test jobs failed:
  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success
Check the workflow run for details.
@github-actions
github-actionsBot
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Jul 17, 2026•

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📊 Workflow Benchmarks
commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30
Avg deltas compare against the most recent benchmark run on main at the time of this run.
Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)
Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges
🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120
TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.
@NathanColosimoNathanColosimo
mentioned this pull request
Jul 17, 2026
 Closed

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Jul 17, 2026

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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
[test] Benchmark replay paging with workflow-server #632 - #2977
Closed
NathanColosimo wants to merge 2 commits into
mainfrom 
codex/benchmark-replay-page-server-632
Closed
[test] Benchmark replay paging with workflow-server #632#2977
NathanColosimo wants to merge 2 commits into
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codex/benchmark-replay-page-server-632
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@NathanColosimo
@NathanColosimoNathanColosimo
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Test-only combined benchmark
This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.
WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.
This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-tarballsReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am
@changeset-bot
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Jul 17, 2026

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🦋 Changeset detected
Latest commit: fbee45e
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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🧪 E2E Test Results
❌ Some tests failed
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442
❌ Failed Tests
▲ Vercel Production (1 failed)
nextjs-turbopack (1 failed):
  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700
📋 View full workflow run
❌ Some E2E test jobs failed:
  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success
Check the workflow run for details.
@github-actions
github-actionsBot
commented
Jul 17, 2026•

edited

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📊 Workflow Benchmarks
commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30
Avg deltas compare against the most recent benchmark run on main at the time of this run.
Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)
Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges
🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120
TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.
@NathanColosimoNathanColosimo
mentioned this pull request
Jul 17, 2026
 Closed

@NathanColosimo
NathanColosimo
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Jul 17, 2026

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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
[test] Benchmark replay paging with workflow-server #632 - #2977
Closed
NathanColosimo wants to merge 2 commits into
mainfrom 
codex/benchmark-replay-page-server-632
Closed
[test] Benchmark replay paging with workflow-server #632#2977
NathanColosimo wants to merge 2 commits into
mainfrom 
codex/benchmark-replay-page-server-632
Conversation
@NathanColosimo
@NathanColosimoNathanColosimo
commented
Jul 17, 2026

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Test-only combined benchmark
This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.
WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.
This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.
@vercel
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Jul 17, 2026•

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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-tarballsReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am
@changeset-bot
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Jul 17, 2026

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🦋 Changeset detected
Latest commit: fbee45e
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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Jul 17, 2026•

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🧪 E2E Test Results
❌ Some tests failed
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442
❌ Failed Tests
▲ Vercel Production (1 failed)
nextjs-turbopack (1 failed):
  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700
📋 View full workflow run
❌ Some E2E test jobs failed:
  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success
Check the workflow run for details.
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📊 Workflow Benchmarks
commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30
Avg deltas compare against the most recent benchmark run on main at the time of this run.
Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)
Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges
🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120
TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.
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mentioned this pull request
Jul 17, 2026
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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
[test] Benchmark replay paging with workflow-server #632 - #2977
Closed
NathanColosimo wants to merge 2 commits into
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codex/benchmark-replay-page-server-632
Closed
[test] Benchmark replay paging with workflow-server #632#2977
NathanColosimo wants to merge 2 commits into
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Test-only combined benchmark
This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.
WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.
This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-tarballsReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am
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🦋 Changeset detected
Latest commit: fbee45e
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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🧪 E2E Test Results
❌ Some tests failed
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442
❌ Failed Tests
▲ Vercel Production (1 failed)
nextjs-turbopack (1 failed):
  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700
📋 View full workflow run
❌ Some E2E test jobs failed:
  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success
Check the workflow run for details.
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📊 Workflow Benchmarks
commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30
Avg deltas compare against the most recent benchmark run on main at the time of this run.
Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)
Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges
🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120
TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.
@NathanColosimoNathanColosimo
mentioned this pull request
Jul 17, 2026
 Closed

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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
[test] Benchmark replay paging with workflow-server #632 - #2977
Closed
NathanColosimo wants to merge 2 commits into
mainfrom 
codex/benchmark-replay-page-server-632
Closed
[test] Benchmark replay paging with workflow-server #632#2977
NathanColosimo wants to merge 2 commits into
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codex/benchmark-replay-page-server-632
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Test-only combined benchmark
This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.
WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.
This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-tarballsReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am
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🦋 Changeset detected
Latest commit: fbee45e
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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🧪 E2E Test Results
❌ Some tests failed
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442
❌ Failed Tests
▲ Vercel Production (1 failed)
nextjs-turbopack (1 failed):
  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700
📋 View full workflow run
❌ Some E2E test jobs failed:
  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success
Check the workflow run for details.
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📊 Workflow Benchmarks
commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30
Avg deltas compare against the most recent benchmark run on main at the time of this run.
Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)
Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges
🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120
TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.
@NathanColosimoNathanColosimo
mentioned this pull request
Jul 17, 2026
 Closed

@NathanColosimo
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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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[test] Benchmark replay paging with workflow-server #632 - #2977
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codex/benchmark-replay-page-server-632
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[test] Benchmark replay paging with workflow-server #632#2977
NathanColosimo wants to merge 2 commits into
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@NathanColosimo
@NathanColosimoNathanColosimo
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Test-only combined benchmark
This draft layers the replay page-size change from #2975 on top of the exact workflow-server preview deployment for vercel/workflow-server#632.
WORKFLOW_SERVER_URL_OVERRIDE points to the preview for server commit 063557ca5565d9dc3b182f602372c0222a7c9379 so both the benchmark runner and deployed workbench route through the bounded event-query implementation.
This PR is not intended to merge. It exists only to run and retain the combined performance benchmark. The mergeable SDK change remains #2975.
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The latest updates on your projects. Learn more about Vercel for GitHub.
ProjectDeploymentActionsUpdated (UTC)
example-nextjs-workflow-turbopackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-nextjs-workflow-webpackReadyReadyPreview, CommentJul 17, 2026 3:39am
example-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-astro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-express-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-fastify-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-hono-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nitro-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-nuxt-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-sveltekit-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-tanstack-start-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workbench-vite-workflowReadyReadyPreview, CommentJul 17, 2026 3:39am
workflow-docsReadyReadyPreview, Comment, Open in v0Jul 17, 2026 3:39am
workflow-swc-playgroundReadyReadyPreview, CommentJul 17, 2026 3:39am
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workflow-webReadyReadyPreview, CommentJul 17, 2026 3:39am
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🦋 Changeset detected
Latest commit: fbee45e
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 16 packages
NameType
@workflow/corePatch
@workflow/buildersPatch
@workflow/cliPatch
@workflow/nextPatch
@workflow/nitroPatch
@workflow/vitestPatch
@workflow/web-sharedPatch
@workflow/webPatch
workflowPatch
@workflow/world-testingPatch
@workflow/astroPatch
@workflow/nestPatch
@workflow/nuxtPatch
@workflow/rollupPatch
@workflow/sveltekitPatch
@workflow/vitePatch
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
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🧪 E2E Test Results
❌ Some tests failed
Summary
PassedFailedSkippedTotal
❌ ▲ Vercel Production145212301683
✅ 💻 Local Development161702191836
✅ 📦 Local Production161702191836
✅ 🐘 Local Postgres161702191836
✅ 🪟 Windows15300153
✅ 📋 Other89401771071
✅ vercel-multi-region270027
Total7377110648442
❌ Failed Tests
▲ Vercel Production (1 failed)
nextjs-turbopack (1 failed):
  • parallelStepsThenWebhookWorkflow - no hook_conflict from same-tick replay race | wrun_41KXQ2EVSR0GGXDEESNCYV7522 | 🔍 observability
Details by Category
❌ ▲ Vercel Production
AppPassedFailedSkipped
✅ astro126027
✅ example126027
✅ express126027
✅ fastify126027
✅ hono126027
❌ nextjs-turbopack14913
✅ nextjs-webpack15003
✅ nitro126027
✅ nuxt126027
✅ sveltekit14508
✅ vite126027
✅ 💻 Local Development
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 📦 Local Production
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🐘 Local Postgres
AppPassedFailedSkipped
✅ astro-stable128025
✅ express-stable128025
✅ fastify-stable128025
✅ hono-stable128025
✅ nextjs-turbopack-canary134019
✅ nextjs-turbopack-stable15300
✅ nextjs-webpack-canary134019
✅ nextjs-webpack-stable15300
✅ nitro-stable128025
✅ nuxt-stable128025
✅ sveltekit-stable14706
✅ vite-stable128025
✅ 🪟 Windows
AppPassedFailedSkipped
✅ nextjs-turbopack15300
✅ 📋 Other
AppPassedFailedSkipped
✅ e2e-local-dev-nest-stable128025
✅ e2e-local-dev-tanstack-start-128025
✅ e2e-local-postgres-nest-stable128025
✅ e2e-local-postgres-tanstack-start-128025
✅ e2e-local-prod-nest-stable128025
✅ e2e-local-prod-tanstack-start-128025
✅ e2e-vercel-prod-tanstack-start126027
✅ vercel-multi-region
AppPassedFailedSkipped
✅ nextjs-turbopack2700
📋 View full workflow run
❌ Some E2E test jobs failed:
  • Vercel Prod: failure
  • Local Dev: success
  • Local Prod: success
  • Local Postgres: success
  • Windows: success
Check the workflow run for details.
@github-actions
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📊 Workflow Benchmarks
commit fbee45e · Fri, 17 Jul 2026 03:52:59 GMT · run logs
Backend: vercel · app: nextjs-turbopack
MetricScenarioAvg (ms)P75 (ms)P90 (ms)P99 (ms)Samples
TTFSstream1456 (+34%)1626 🔴1657 🔴1740 🔴30
TTFShook + stream1601 (+12%)1898 🔴2090 🔴2223 🔴30
STSO1020 steps (1-20)287 (-4.9%)315 🔴375 🔴666 🔴19
STSO1020 steps (101-120)292 (-33%)311 🔴421 🔴458 🔴19
STSO1020 steps (1001-1020)716 (-16%)770 🔴819 🔴957 🔴19
WOstream1456 (+34%)16261657174030
WOhook + stream1601 (+12%)18982090222330
SLstream5000 (+6.8%)5022 🔴5771 🔴5874 🔴30
SLhook + stream4909 (+1.2%)5459 🔴5666 🔴5796 🔴30
Avg deltas compare against the most recent benchmark run on main at the time of this run.
Metrics — TTFS: time to first step body execution · STSO: step-to-step overhead (gap between consecutive step bodies) · WO: workflow overhead (time outside step bodies, client start → last step body exit) · SL: stream latency (first chunk write → visible to the reader)
Scenarios — stream: one step that streams chunks back to the client; no hooks, so the run stays in turbo mode · hook + stream: registers a hook before the same streaming step, which exits turbo mode · 1020 steps: 1020 trivial sequential steps; STSO is measured between consecutive steps in the given step ranges
🟢/🔴 mark percentiles within/above target. Targets (p75/p90/p99, ms) — TTFS 200/300/600 · SL 50/60/125 · STSO (1-20) 20/30/60 · STSO (101-120) 30/45/90 · STSO (1001-1020) 40/60/120
TTFS/WO compare client vs deployment clocks and SL compares the step runner’s clock vs the client’s (NTP-synced in CI). WO ends at the last step body exit, the closest observable proxy for the final step-completion request.
@NathanColosimoNathanColosimo
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Jul 17, 2026
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@NathanColosimo
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Benchmark complete. Results and trace-level analysis are recorded on workflow #2975 and workflow-server #632. Closing this test-only override PR; it is not intended to merge.
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