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fix(next): derive workflow project root#2729

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NathanColosimo merged 4 commits into
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codex/2716-next-root
Jul 1, 2026
Merged

fix(next): derive workflow project root#2729
NathanColosimo merged 4 commits into
mainfrom
codex/2716-next-root

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@NathanColosimo

@NathanColosimo NathanColosimo commented Jun 30, 2026

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Summary

Derives the Workflow Next builder projectRoot from the same root sources Next uses for tracing: explicit outputFileTracingRoot, then turbopack.root, then workspace/lockfile markers. workingDir and moduleSpecifierRoot stay scoped to the Next app directory so module specifiers remain stable.

Part of #2716.

Tests

  • pnpm --filter @workflow/next test
  • pnpm turbo build --filter @workflow/next
  • pnpm biome check packages/next/src/index.ts packages/next/src/index.test.ts .changeset/next-root-detection.md

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

Project Deployment Actions Updated (UTC)
example-nextjs-workflow-turbopack Ready Ready Preview, Comment Jul 1, 2026 5:02pm
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🦋 Changeset detected

Latest commit: d13fa5e

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

This PR includes changesets to release 16 packages
Name Type
@workflow/next Patch
workflow Patch
@workflow/world-testing Patch
@workflow/core Patch
@workflow/builders Patch
@workflow/cli Patch
@workflow/nitro Patch
@workflow/vitest Patch
@workflow/web-shared Patch
@workflow/web Patch
@workflow/astro Patch
@workflow/nest Patch
@workflow/rollup Patch
@workflow/sveltekit Patch
@workflow/vite Patch
@workflow/nuxt Patch

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

✅ All tests passed

Summary

Passed Failed Skipped Total
✅ ▲ Vercel Production 1442 0 230 1672
✅ 💻 Local Development 1605 0 219 1824
✅ 📦 Local Production 1605 0 219 1824
✅ 🐘 Local Postgres 1593 0 231 1824
✅ 🪟 Windows 152 0 0 152
✅ 📋 Other 885 0 179 1064
Total 7282 0 1078 8360

Details by Category

✅ ▲ Vercel Production
App Passed Failed Skipped
✅ astro 125 0 27
✅ example 125 0 27
✅ express 125 0 27
✅ fastify 125 0 27
✅ hono 125 0 27
✅ nextjs-turbopack 149 0 3
✅ nextjs-webpack 149 0 3
✅ nitro 125 0 27
✅ nuxt 125 0 27
✅ sveltekit 144 0 8
✅ vite 125 0 27
✅ 💻 Local Development
App Passed Failed Skipped
✅ astro-stable 127 0 25
✅ express-stable 127 0 25
✅ fastify-stable 127 0 25
✅ hono-stable 127 0 25
✅ nextjs-turbopack-canary 133 0 19
✅ nextjs-turbopack-stable 152 0 0
✅ nextjs-webpack-canary 133 0 19
✅ nextjs-webpack-stable 152 0 0
✅ nitro-stable 127 0 25
✅ nuxt-stable 127 0 25
✅ sveltekit-stable 146 0 6
✅ vite-stable 127 0 25
✅ 📦 Local Production
App Passed Failed Skipped
✅ astro-stable 127 0 25
✅ express-stable 127 0 25
✅ fastify-stable 127 0 25
✅ hono-stable 127 0 25
✅ nextjs-turbopack-canary 133 0 19
✅ nextjs-turbopack-stable 152 0 0
✅ nextjs-webpack-canary 133 0 19
✅ nextjs-webpack-stable 152 0 0
✅ nitro-stable 127 0 25
✅ nuxt-stable 127 0 25
✅ sveltekit-stable 146 0 6
✅ vite-stable 127 0 25
✅ 🐘 Local Postgres
App Passed Failed Skipped
✅ astro-stable 126 0 26
✅ express-stable 126 0 26
✅ fastify-stable 126 0 26
✅ hono-stable 126 0 26
✅ nextjs-turbopack-canary 132 0 20
✅ nextjs-turbopack-stable 151 0 1
✅ nextjs-webpack-canary 132 0 20
✅ nextjs-webpack-stable 151 0 1
✅ nitro-stable 126 0 26
✅ nuxt-stable 126 0 26
✅ sveltekit-stable 145 0 7
✅ vite-stable 126 0 26
✅ 🪟 Windows
App Passed Failed Skipped
✅ nextjs-turbopack 152 0 0
✅ 📋 Other
App Passed Failed Skipped
✅ e2e-local-dev-nest-stable 127 0 25
✅ e2e-local-dev-tanstack-start- 127 0 25
✅ e2e-local-postgres-nest-stable 126 0 26
✅ e2e-local-postgres-tanstack-start- 126 0 26
✅ e2e-local-prod-nest-stable 127 0 25
✅ e2e-local-prod-tanstack-start- 127 0 25
✅ e2e-vercel-prod-tanstack-start 125 0 27

📋 View full workflow run

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📊 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 0.047s (+2.2%) 1.011s (+0.5%) 0.964s 10 1.00x
💻 Local Nitro 0.052s (+17.7% 🔺) 1.006s (~) 0.955s 10 1.10x
💻 Local Next.js (Turbopack) 0.055s (+1.9%) 1.006s (~) 0.951s 10 1.16x
🐘 Postgres Next.js (Turbopack) 0.059s (-46.6% 🟢) 1.013s (-2.6%) 0.954s 10 1.25x
🐘 Postgres Nitro 0.067s (+7.0% 🔺) 1.011s (~) 0.944s 10 1.43x
🐘 Postgres Express 0.080s (+9.3% 🔺) 1.012s (~) 0.932s 10 1.69x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 0.289s (+42.9% 🔺) 1.954s (-1.1%) 1.665s 10 1.00x
▲ Vercel Nitro 0.291s (-20.4% 🟢) 2.313s (+26.3% 🔺) 2.022s 10 1.01x
▲ Vercel Next.js (Turbopack) 0.768s (+66.2% 🔺) 2.812s (+9.5% 🔺) 2.044s 10 2.66x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 1 step

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Express 1.080s (~) 2.006s (~) 0.926s 10 1.00x
💻 Local Nitro 1.089s (+0.6%) 2.007s (~) 0.918s 10 1.01x
🐘 Postgres Next.js (Turbopack) 1.092s (-0.9%) 2.010s (~) 0.918s 10 1.01x
💻 Local Next.js (Turbopack) 1.097s (+1.5%) 2.006s (~) 0.910s 10 1.02x
🐘 Postgres Express 1.099s (~) 2.010s (~) 0.911s 10 1.02x
🐘 Postgres Nitro 1.101s (+0.8%) 2.010s (~) 0.909s 10 1.02x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 1.425s (+5.9% 🔺) 3.079s (+8.9% 🔺) 1.655s 10 1.00x
▲ Vercel Express 1.450s (+6.5% 🔺) 3.263s (+24.0% 🔺) 1.813s 10 1.02x
▲ Vercel Next.js (Turbopack) 2.224s (-0.9%) 3.987s (+4.5%) 1.763s 10 1.56x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Express 10.440s (~) 11.023s (~) 0.582s 3 1.00x
💻 Local Nitro 10.493s (+0.7%) 11.023s (~) 0.530s 3 1.01x
🐘 Postgres Nitro 10.507s (~) 11.015s (~) 0.508s 3 1.01x
🐘 Postgres Next.js (Turbopack) 10.538s (+1.3%) 11.017s (~) 0.479s 3 1.01x
💻 Local Next.js (Turbopack) 10.543s (+0.6%) 11.025s (~) 0.482s 3 1.01x
🐘 Postgres Express 10.544s (+0.6%) 11.020s (~) 0.476s 3 1.01x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 11.869s (~) 14.024s (+2.6%) 2.155s 3 1.00x
▲ Vercel Express 11.902s (-1.3%) 14.519s (+6.5% 🔺) 2.617s 3 1.00x
▲ Vercel Next.js (Turbopack) 13.521s (+6.7% 🔺) 15.635s (+6.1% 🔺) 2.113s 2 1.14x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 25 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Express 13.577s (-1.1%) 14.028s (~) 0.451s 5 1.00x
🐘 Postgres Express 13.667s (~) 14.022s (~) 0.355s 5 1.01x
🐘 Postgres Nitro 13.723s (~) 14.019s (~) 0.297s 5 1.01x
💻 Local Nitro 13.726s (+1.2%) 14.029s (~) 0.303s 5 1.01x
🐘 Postgres Next.js (Turbopack) 13.752s (+0.8%) 14.020s (~) 0.268s 5 1.01x
💻 Local Next.js (Turbopack) 13.780s (+0.8%) 14.028s (~) 0.249s 5 1.01x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 16.472s (-1.8%) 18.808s (+2.1%) 2.337s 4 1.00x
▲ Vercel Express 16.939s (+3.1%) 19.237s (+2.8%) 2.298s 4 1.03x
▲ Vercel Next.js (Turbopack) 18.488s (+7.5% 🔺) 20.601s (+6.7% 🔺) 2.113s 3 1.12x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 50 sequential steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 12.260s (+0.5%) 13.019s (~) 0.759s 7 1.00x
💻 Local Express 12.294s (+1.0%) 13.025s (~) 0.731s 7 1.00x
🐘 Postgres Express 12.309s (-1.4%) 13.022s (~) 0.713s 7 1.00x
💻 Local Nitro 12.370s (+2.1%) 13.026s (~) 0.656s 7 1.01x
💻 Local Next.js (Turbopack) 12.504s (+2.7%) 13.026s (~) 0.522s 7 1.02x
🐘 Postgres Next.js (Turbopack) 12.541s (+0.9%) 13.018s (+0.8%) 0.477s 7 1.02x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 18.395s (+4.4%) 20.634s (+6.8% 🔺) 2.239s 5 1.00x
▲ Vercel Nitro 19.197s (+10.6% 🔺) 21.234s (+12.0% 🔺) 2.037s 5 1.04x
▲ Vercel Next.js (Turbopack) 20.866s (+5.1% 🔺) 23.371s (+6.8% 🔺) 2.505s 4 1.13x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.184s (-1.5%) 2.008s (~) 0.824s 15 1.00x
🐘 Postgres Express 1.191s (+0.7%) 2.007s (~) 0.817s 15 1.01x
🐘 Postgres Next.js (Turbopack) 1.201s (-5.6% 🟢) 2.008s (-1.6%) 0.807s 15 1.01x
💻 Local Express 1.354s (-2.8%) 2.007s (~) 0.653s 15 1.14x
💻 Local Next.js (Turbopack) 1.444s (+1.5%) 2.007s (~) 0.563s 15 1.22x
💻 Local Nitro 1.445s (+3.2%) 2.007s (~) 0.561s 15 1.22x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.063s (+4.5%) 4.068s (+9.0% 🔺) 2.005s 8 1.00x
▲ Vercel Nitro 2.171s (-0.8%) 4.068s (+7.1% 🔺) 1.898s 8 1.05x
▲ Vercel Next.js (Turbopack) 3.649s (+10.1% 🔺) 5.694s (+11.2% 🔺) 2.045s 6 1.77x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 1.303s (-2.1%) 3.009s (+21.4% 🔺) 1.706s 11 1.00x
🐘 Postgres Nitro 1.323s (~) 2.594s (-8.3% 🟢) 1.270s 12 1.02x
🐘 Postgres Express 1.363s (+0.6%) 2.676s (+15.5% 🔺) 1.312s 12 1.05x
💻 Local Express 2.360s (-8.6% 🟢) 3.008s (~) 0.649s 10 1.81x
💻 Local Nitro 2.496s (-1.0%) 3.010s (-3.2%) 0.514s 10 1.92x
💻 Local Next.js (Turbopack) 2.654s (-3.2%) 3.109s (~) 0.455s 10 2.04x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.460s (-7.2% 🟢) 4.464s (+10.9% 🔺) 2.004s 7 1.00x
▲ Vercel Nitro 2.475s (+3.5%) 4.109s (+7.3% 🔺) 1.634s 8 1.01x
▲ Vercel Next.js (Turbopack) 4.204s (+15.9% 🔺) 6.307s (+9.2% 🔺) 2.103s 5 1.71x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Promise.all with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 1.640s (+3.2%) 4.014s (~) 2.374s 8 1.00x
🐘 Postgres Nitro 1.671s (+5.2% 🔺) 4.732s (+17.9% 🔺) 3.061s 7 1.02x
💻 Local Next.js (Turbopack) 2.741s (-65.0% 🟢) 4.298s (-46.4% 🟢) 1.557s 7 1.67x
🐘 Postgres Next.js (Turbopack) 3.147s (+72.9% 🔺) 6.019s (+23.1% 🔺) 2.872s 6 1.92x
💻 Local Nitro 4.059s (-34.0% 🟢) 5.180s (-24.0% 🟢) 1.121s 6 2.48x
💻 Local Express 4.418s (-33.7% 🟢) 5.182s (-30.1% 🟢) 0.763s 6 2.69x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 3.360s (+27.1% 🔺) 5.174s (+22.3% 🔺) 1.814s 6 1.00x
▲ Vercel Express 3.547s (+32.3% 🔺) 5.772s (+33.1% 🔺) 2.224s 6 1.06x
▲ Vercel Next.js (Turbopack) 5.230s (+26.0% 🔺) 7.022s (+15.0% 🔺) 1.792s 5 1.56x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 10 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Express 1.179s (~) 2.008s (~) 0.828s 15 1.00x
🐘 Postgres Nitro 1.180s (+0.7%) 2.007s (~) 0.827s 15 1.00x
🐘 Postgres Next.js (Turbopack) 1.192s (+0.8%) 2.008s (~) 0.816s 15 1.01x
💻 Local Express 1.409s (-2.6%) 2.007s (~) 0.598s 15 1.19x
💻 Local Nitro 1.472s (+7.4% 🔺) 2.007s (~) 0.535s 15 1.25x
💻 Local Next.js (Turbopack) 1.519s (+6.3% 🔺) 2.007s (~) 0.488s 15 1.29x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 2.021s (+5.4% 🔺) 3.910s (+10.6% 🔺) 1.889s 8 1.00x
▲ Vercel Express 2.093s (+10.6% 🔺) 4.045s (+8.9% 🔺) 1.952s 8 1.04x
▲ Vercel Next.js (Turbopack) 4.222s (+37.2% 🔺) 6.214s (+25.9% 🔺) 1.992s 5 2.09x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 25 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.299s (-1.1%) 2.316s (-10.7% 🟢) 1.017s 13 1.00x
🐘 Postgres Next.js (Turbopack) 1.330s (-5.4% 🟢) 3.209s (+26.7% 🔺) 1.879s 10 1.02x
🐘 Postgres Express 1.337s (+2.3%) 2.677s (+8.3% 🔺) 1.340s 12 1.03x
💻 Local Next.js (Turbopack) 2.512s (-5.9% 🟢) 3.009s (-6.3% 🟢) 0.497s 10 1.93x
💻 Local Nitro 2.598s (-5.1% 🟢) 3.009s (-10.0% 🟢) 0.411s 10 2.00x
💻 Local Express 2.673s (+1.3%) 3.109s (+3.3%) 0.436s 10 2.06x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 2.259s (-2.5%) 3.848s (+1.8%) 1.589s 8 1.00x
▲ Vercel Express 2.417s (-3.6%) 4.213s (+6.7% 🔺) 1.797s 8 1.07x
▲ Vercel Next.js (Turbopack) 3.906s (+14.7% 🔺) 5.840s (+10.8% 🔺) 1.934s 6 1.73x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Promise.race with 50 concurrent steps

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.605s (-2.4%) 4.009s (-6.8% 🟢) 2.405s 8 1.00x
🐘 Postgres Express 1.645s (+3.3%) 4.296s (+3.9%) 2.651s 7 1.02x
🐘 Postgres Next.js (Turbopack) 2.874s (+10.2% 🔺) 6.013s (+14.9% 🔺) 3.139s 5 1.79x
💻 Local Next.js (Turbopack) 4.133s (-35.1% 🟢) 5.514s (-23.6% 🟢) 1.381s 6 2.58x
💻 Local Express 5.266s (-16.9% 🟢) 6.017s (-11.7% 🟢) 0.751s 5 3.28x
💻 Local Nitro 5.360s (-16.8% 🟢) 6.218s (-16.2% 🟢) 0.857s 5 3.34x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 2.789s (-1.7%) 4.811s (+9.7% 🔺) 2.022s 7 1.00x
▲ Vercel Express 3.073s (+8.6% 🔺) 5.037s (+10.6% 🔺) 1.964s 6 1.10x
▲ Vercel Next.js (Turbopack) 4.118s (-5.9% 🟢) 6.208s (+0.6%) 2.090s 5 1.48x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Express 0.572s (+3.6%) 1.005s (~) 0.433s 60 1.00x
🐘 Postgres Nitro 0.577s (+2.4%) 1.023s (~) 0.446s 59 1.01x
🐘 Postgres Express 0.577s (+4.6%) 1.023s (+1.7%) 0.446s 59 1.01x
🐘 Postgres Next.js (Turbopack) 0.584s (-3.8%) 1.007s (-4.3%) 0.423s 60 1.02x
💻 Local Nitro 0.663s (+9.8% 🔺) 1.040s (~) 0.377s 58 1.16x
💻 Local Next.js (Turbopack) 0.696s (+5.2% 🔺) 1.022s (-3.3%) 0.327s 59 1.22x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 2.560s (-4.9%) 4.284s (~) 1.724s 15 1.00x
▲ Vercel Nitro 2.572s (-6.6% 🟢) 4.231s (-5.0% 🟢) 1.659s 15 1.00x
▲ Vercel Next.js (Turbopack) 3.637s (+0.7%) 5.697s (+5.9% 🔺) 2.060s 11 1.42x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.324s (+0.8%) 2.008s (-2.2%) 0.684s 45 1.00x
💻 Local Express 1.420s (+1.4%) 2.006s (~) 0.586s 45 1.07x
🐘 Postgres Express 1.428s (+5.7% 🔺) 2.076s (+2.3%) 0.648s 44 1.08x
🐘 Postgres Next.js (Turbopack) 1.434s (-3.7%) 2.030s (-5.0%) 0.596s 45 1.08x
💻 Local Nitro 1.617s (+13.1% 🔺) 2.007s (~) 0.390s 45 1.22x
💻 Local Next.js (Turbopack) 1.641s (+10.2% 🔺) 2.007s (~) 0.366s 45 1.24x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 5.854s (-5.0%) 7.751s (-1.3%) 1.897s 12 1.00x
▲ Vercel Nitro 6.116s (~) 7.683s (+1.4%) 1.567s 12 1.04x
▲ Vercel Next.js (Turbopack) 8.508s (+7.3% 🔺) 10.372s (+5.9% 🔺) 1.864s 9 1.45x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 2.659s (+2.1%) 3.033s (~) 0.374s 40 1.00x
🐘 Postgres Next.js (Turbopack) 2.794s (-5.2% 🟢) 3.059s (-11.4% 🟢) 0.265s 40 1.05x
🐘 Postgres Express 2.913s (+10.8% 🔺) 3.334s (+8.1% 🔺) 0.421s 37 1.10x
💻 Local Express 3.171s (+6.1% 🔺) 3.912s (+12.9% 🔺) 0.742s 31 1.19x
💻 Local Nitro 3.456s (+8.8% 🔺) 4.009s (+1.6%) 0.553s 30 1.30x
💻 Local Next.js (Turbopack) 3.573s (+11.6% 🔺) 4.010s (~) 0.437s 30 1.34x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 12.073s (+1.9%) 14.384s (+7.3% 🔺) 2.311s 9 1.00x
▲ Vercel Express 12.128s (+3.6%) 14.201s (+6.1% 🔺) 2.073s 9 1.00x
▲ Vercel Next.js (Turbopack) 18.038s (+7.0% 🔺) 20.322s (+8.6% 🔺) 2.283s 6 1.49x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.189s (-18.1% 🟢) 1.006s (~) 0.817s 60 1.00x
🐘 Postgres Nitro 0.218s (+1.5%) 1.006s (~) 0.788s 60 1.15x
🐘 Postgres Express 0.234s (+5.5% 🔺) 1.007s (~) 0.772s 60 1.24x
💻 Local Express 0.512s (+13.9% 🔺) 1.005s (~) 0.493s 60 2.70x
💻 Local Nitro 0.538s (+25.3% 🔺) 1.005s (~) 0.467s 60 2.84x
💻 Local Next.js (Turbopack) 0.666s (+5.9% 🔺) 1.022s (+1.7%) 0.356s 59 3.51x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 1.110s (+8.2% 🔺) 2.688s (+10.2% 🔺) 1.579s 23 1.00x
▲ Vercel Express 1.113s (+19.5% 🔺) 2.873s (+16.0% 🔺) 1.761s 21 1.00x
▲ Vercel Next.js (Turbopack) 2.420s (+22.0% 🔺) 4.103s (+6.7% 🔺) 1.684s 15 2.18x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Next.js (Turbopack) 0.303s (-4.6%) 1.018s (~) 0.714s 89 1.00x
🐘 Postgres Nitro 0.325s (-3.3%) 1.006s (~) 0.681s 90 1.07x
🐘 Postgres Express 0.350s (+5.1% 🔺) 1.007s (~) 0.656s 90 1.16x
💻 Local Express 2.522s (+16.0% 🔺) 3.043s (+10.0% 🔺) 0.520s 30 8.31x
💻 Local Nitro 2.631s (+36.8% 🔺) 3.012s (+20.0% 🔺) 0.380s 30 8.67x
💻 Local Next.js (Turbopack) 2.680s (-8.4% 🟢) 3.041s (-10.0% 🟢) 0.361s 30 8.83x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 1.488s (+4.6%) 3.208s (+6.8% 🔺) 1.719s 29 1.00x
▲ Vercel Nitro 1.822s (+12.6% 🔺) 3.634s (+20.9% 🔺) 1.812s 25 1.22x
▲ Vercel Next.js (Turbopack) 3.004s (+20.5% 🔺) 5.162s (+25.6% 🔺) 2.158s 18 2.02x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 0.527s (-3.9%) 1.068s (-5.3% 🟢) 0.541s 113 1.00x
🐘 Postgres Next.js (Turbopack) 0.544s (+8.7% 🔺) 3.167s (+26.0% 🔺) 2.624s 38 1.03x
🐘 Postgres Express 0.546s (+0.5%) 1.069s (-4.3%) 0.522s 113 1.04x
💻 Local Express 5.133s (-44.5% 🟢) 8.358s (-20.0% 🟢) 3.225s 15 9.73x
💻 Local Next.js (Turbopack) 5.831s (-46.0% 🟢) 8.664s (-26.3% 🟢) 2.832s 14 11.06x
💻 Local Nitro 5.995s (-37.9% 🟢) 8.422s (-21.8% 🟢) 2.428s 15 11.37x

▲ Production (Vercel)

World Framework Workflow Time Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Nitro 1.839s (+9.7% 🔺) 3.943s (+14.3% 🔺) 2.104s 31 1.00x
▲ Vercel Express 2.021s (+13.7% 🔺) 4.196s (+14.6% 🔺) 2.175s 29 1.10x
▲ Vercel Next.js (Turbopack) 4.256s (+4.8%) 6.409s (+9.2% 🔺) 2.153s 19 2.31x

🔍 Observability: Nitro | Express | Next.js (Turbopack)

Stream Benchmarks (includes TTFB metrics)
workflow with stream

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Express 1.151s (+0.9%) 2.004s (~) 0.010s (-2.8%) 2.017s (~) 0.867s 10 1.00x
🐘 Postgres Nitro 1.152s (-3.0%) 1.998s (~) 0.001s (+16.7% 🔺) 2.011s (~) 0.859s 10 1.00x
🐘 Postgres Express 1.160s (+0.6%) 1.999s (~) 0.001s (-8.3% 🟢) 2.010s (~) 0.851s 10 1.01x
💻 Local Next.js (Turbopack) 1.160s (+1.9%) 1.962s (~) 0.014s (+14.2% 🔺) 2.022s (~) 0.861s 10 1.01x
🐘 Postgres Next.js (Turbopack) 1.167s (-4.5%) 2.000s (+0.5%) 0.001s (~) 2.010s (~) 0.843s 10 1.01x
💻 Local Nitro 1.179s (+1.9%) 2.005s (~) 0.013s (+18.7% 🔺) 2.021s (~) 0.842s 10 1.02x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 1.977s (-3.0%) 3.591s (+7.1% 🔺) 1.823s (+31.6% 🔺) 5.977s (+14.2% 🔺) 4.000s 10 1.00x
▲ Vercel Nitro 2.049s (+7.2% 🔺) 3.407s (+9.5% 🔺) 1.770s (+8.1% 🔺) 5.753s (+11.4% 🔺) 3.705s 10 1.04x
▲ Vercel Next.js (Turbopack) 3.965s (+23.5% 🔺) 4.362s (+9.1% 🔺) 1.120s (+35.6% 🔺) 7.128s (+16.6% 🔺) 3.163s 10 2.01x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
💻 Local 🥇 Express 1.587s (+3.1%) 2.043s (+1.7%) 0.013s (-0.7%) 2.060s (+1.7%) 0.472s 30 1.00x
🐘 Postgres Nitro 1.597s (+1.5%) 2.004s (~) 0.005s (-12.3% 🟢) 2.027s (~) 0.430s 30 1.01x
💻 Local Nitro 1.618s (+3.7%) 2.009s (~) 0.013s (-3.0%) 2.025s (~) 0.407s 30 1.02x
🐘 Postgres Next.js (Turbopack) 1.618s (-14.4% 🟢) 2.009s (-11.3% 🟢) 0.006s (-27.7% 🟢) 2.029s (-11.9% 🟢) 0.411s 30 1.02x
💻 Local Next.js (Turbopack) 1.625s (+3.0%) 1.969s (~) 0.013s (+8.6% 🔺) 2.028s (~) 0.402s 30 1.02x
🐘 Postgres Express 1.628s (+2.6%) 2.004s (-1.6%) 0.005s (~) 2.026s (-1.6%) 0.398s 30 1.03x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 5.739s (+1.7%) 7.468s (+4.2%) 0.325s (+59.4% 🔺) 8.345s (+5.3% 🔺) 2.606s 8 1.00x
▲ Vercel Nitro 5.797s (+2.3%) 7.048s (+1.2%) 0.544s (+91.6% 🔺) 8.258s (+7.6% 🔺) 2.460s 8 1.01x
▲ Vercel Next.js (Turbopack) 9.870s (+4.7%) 11.303s (+5.1% 🔺) 0.696s (+171.2% 🔺) 12.804s (+8.3% 🔺) 2.934s 5 1.72x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

10 parallel streams (1MB each)

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 0.801s (+3.9%) 1.085s (-1.8%) 0.000s (-80.0% 🟢) 1.117s (~) 0.316s 54 1.00x
🐘 Postgres Express 0.816s (+4.8%) 1.102s (+3.9%) 0.000s (+Infinity% 🔺) 1.127s (+4.4%) 0.311s 54 1.02x
🐘 Postgres Next.js (Turbopack) 0.997s (-27.6% 🟢) 1.499s (-23.5% 🟢) 0.000s (+Infinity% 🔺) 1.508s (-24.7% 🟢) 0.511s 40 1.25x
💻 Local Express 1.304s (+2.4%) 1.919s (-4.6%) 0.000s (-37.5% 🟢) 1.923s (-4.6%) 0.619s 32 1.63x
💻 Local Next.js (Turbopack) 1.349s (-2.4%) 1.976s (~) 0.000s (+20.0% 🔺) 2.017s (~) 0.669s 30 1.68x
💻 Local Nitro 1.417s (+9.2% 🔺) 1.949s (-3.2%) 0.001s (+135.0% 🔺) 1.952s (-3.2%) 0.535s 31 1.77x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 3.189s (+10.8% 🔺) 4.679s (+8.0% 🔺) 0.000s (+Infinity% 🔺) 5.305s (+10.0% 🔺) 2.116s 12 1.00x
▲ Vercel Nitro 3.333s (-98.2% 🟢) 4.935s (-97.3% 🟢) 0.000s (+Infinity% 🔺) 5.457s (-97.1% 🟢) 2.124s 11 1.05x
▲ Vercel Next.js (Turbopack) 5.398s (+27.4% 🔺) 5.759s (+6.1% 🔺) 0.000s (NaN%) 7.306s (+17.9% 🔺) 1.908s 9 1.69x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

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

💻 Local Development

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
🐘 Postgres 🥇 Nitro 1.948s (+3.0%) 2.512s (+3.2%) 0.000s (~) 2.543s (+3.8%) 0.595s 25 1.00x
🐘 Postgres Express 2.210s (+27.8% 🔺) 2.778s (+21.4% 🔺) 0.000s (+17.4% 🔺) 2.793s (+21.1% 🔺) 0.583s 23 1.13x
🐘 Postgres Next.js (Turbopack) 2.847s (+0.7%) 3.319s (-1.2%) 0.000s (NaN%) 3.327s (-1.9%) 0.480s 19 1.46x
💻 Local Express 3.074s (-9.5% 🟢) 3.777s (-6.1% 🟢) 0.001s (+3.1%) 3.781s (-6.1% 🟢) 0.707s 16 1.58x
💻 Local Nitro 3.279s (-11.1% 🟢) 3.776s (-12.5% 🟢) 0.001s (-12.5% 🟢) 3.780s (-12.5% 🟢) 0.501s 16 1.68x
💻 Local Next.js (Turbopack) 3.631s (+4.1%) 4.055s (+1.7%) 0.001s (-46.7% 🟢) 4.098s (+1.6%) 0.467s 15 1.86x

▲ Production (Vercel)

World Framework Workflow Time TTFB Slurp Wall Time Overhead Samples vs Fastest
▲ Vercel 🥇 Express 4.397s (+1.8%) 5.976s (+5.2% 🔺) 0.000s (NaN%) 6.515s (+6.0% 🔺) 2.118s 10 1.00x
▲ Vercel Nitro 4.566s (+5.0%) 5.984s (+1.6%) 0.001s (+Infinity% 🔺) 6.510s (+0.8%) 1.944s 10 1.04x
▲ Vercel Next.js (Turbopack) 7.250s (+4.5%) 8.059s (+1.7%) 0.000s (NaN%) 9.294s (+5.1% 🔺) 2.044s 7 1.65x

🔍 Observability: Express | Nitro | Next.js (Turbopack)

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World 🥇 Fastest Framework Wins
💻 Local Express 18/21
🐘 Postgres Nitro 13/21
▲ Vercel Express 11/21
Fastest World by Framework

Winner determined by most benchmark wins

Framework 🥇 Fastest World Wins
Express 🐘 Postgres 12/21
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)
  • 🌐 Redis: Community world (local development)
  • 🌐 Redis + BullMQ: Community world (local development)
  • 🌐 Cloudflare: Community world (local development)
  • 🌐 MySQL: Community world (local development)
  • 🌐 Azure: Community world (local development)
  • 🌐 NATS JetStream: Community world (local development)
  • 🌐 Upstash: Community world (local development)
  • 🌐 Platformatic: Community world (local development)

📋 View full workflow run

@NathanColosimo NathanColosimo marked this pull request as ready for review July 1, 2026 16:43
@NathanColosimo NathanColosimo requested review from a team and ijjk as code owners July 1, 2026 16:43
ijjk
ijjk reviewed Jul 1, 2026
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Comment thread packages/next/src/index.ts Outdated
@NathanColosimo

NathanColosimo commented Jul 1, 2026

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Next doesn't discover package.json#workspaces here: https://github.com/vercel/next.js/blob/canary/packages/next/src/lib/find-root.ts, should we add that to workflows though @ijjk

@ijjk

ijjk commented Jul 1, 2026

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If other lockfiles are covered that should be sufficient instead of workspaces to avoid reading/parsing the file

@NathanColosimo NathanColosimo requested a review from ijjk July 1, 2026 18:22
@NathanColosimo NathanColosimo enabled auto-merge (squash) July 1, 2026 18:23
@NathanColosimo NathanColosimo merged commit 7eabc1f into main Jul 1, 2026
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github-actions Bot commented Jul 1, 2026

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Backport PR opened against stable: #2743. Merge conflicts were resolved by AI — please review carefully. (backport job run)

This was referenced Jul 1, 2026
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@NathanColosimo @ijjk