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Inline handler dependencies instead of tracing#89269

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ijjk merged 2 commits intocanaryfrom
ijjk/optimize-handler-deps
Jan 30, 2026
Merged

Inline handler dependencies instead of tracing#89269
ijjk merged 2 commits intocanaryfrom
ijjk/optimize-handler-deps

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@ijjk ijjk commented Jan 29, 2026

This updates to remove extra tracing that was being done in build-complete for deployment adapters to allow importing internal node-environment modules. Instead this exposes next/setup-node-env to adapters outputs that can be used instead and are traced through our normal bundling/tracing flow.

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nextjs-bot commented Jan 30, 2026

Stats from current PR

✅ No significant changes detected

📊 All Metrics
📖 Metrics Glossary

Dev Server Metrics:

  • Listen = TCP port starts accepting connections
  • First Request = HTTP server returns successful response
  • Cold = Fresh build (no cache)
  • Warm = With cached build artifacts

Build Metrics:

  • Fresh = Clean build (no .next directory)
  • Cached = With existing .next directory

Change Thresholds:

  • Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
  • Size: Changes < 1KB AND < 1% are insignificant
  • All other changes are flagged to catch regressions

⚡ Dev Server

Metric Canary PR Change Trend
Cold (Listen) 456ms 455ms ▁▁▁▁▁
Cold (Ready in log) 439ms 438ms ▆▇█▁█
Cold (First Request) 1.121s 1.152s ▆▇█▁█
Warm (Listen) 457ms 456ms ▁▁▁▁▁
Warm (Ready in log) 443ms 442ms ▁▁▂▃▁
Warm (First Request) 339ms 342ms ▁▁▅▄▃
📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric Canary PR Change Trend
Cold (Listen) 455ms 455ms ▁▁▁▁▁
Cold (Ready in log) 438ms 437ms ▄▅▅▅▇
Cold (First Request) 1.872s 1.851s ▃▃▃▄▇
Warm (Listen) 456ms 455ms ▁▁▁▁▁
Warm (Ready in log) 437ms 436ms ▅▆▅▆█
Warm (First Request) 1.877s 1.858s ▃▃▃▄▇

⚡ Production Builds

Metric Canary PR Change Trend
Fresh Build 3.883s 3.879s ▁▂▂▅▁
Cached Build 3.909s 3.827s ▁▂▂█▁
📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric Canary PR Change Trend
Fresh Build 13.774s 13.762s ▁▁▂▂█
Cached Build 13.889s 13.868s ▁▁▁▂█
node_modules Size 464 MB 464 MB ▁▁▁▁▁
📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **435 kB** → **435 kB** ✓

81 files with content-based hashes (individual files not comparable between builds)

Server

Middleware
Canary PR Change
middleware-b..fest.js gzip 760 B 764 B
Total 760 B 764 B ⚠️ +4 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 447 B 450 B
Total 447 B 450 B ⚠️ +3 B

📦 Webpack

Client

Main Bundles
Canary PR Change
5528-HASH.js gzip 5.47 kB N/A -
6280-HASH.js gzip 54.6 kB N/A -
6335.HASH.js gzip 169 B N/A -
912-HASH.js gzip 4.53 kB N/A -
e8aec2e4-HASH.js gzip 62.5 kB N/A -
framework-HASH.js gzip 59.7 kB 59.7 kB
main-app-HASH.js gzip 256 B 253 B 🟢 3 B (-1%)
main-HASH.js gzip 39 kB 39 kB
webpack-HASH.js gzip 1.68 kB 1.68 kB
262-HASH.js gzip N/A 4.52 kB -
2889.HASH.js gzip N/A 169 B -
5602-HASH.js gzip N/A 5.48 kB -
6948ada0-HASH.js gzip N/A 62.5 kB -
9544-HASH.js gzip N/A 55.3 kB -
Total 228 kB 229 kB ⚠️ +680 B
Polyfills
Canary PR Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB
Total 39.4 kB 39.4 kB
Pages
Canary PR Change
_app-HASH.js gzip 194 B 194 B
_error-HASH.js gzip 183 B 180 B 🟢 3 B (-2%)
css-HASH.js gzip 331 B 330 B
dynamic-HASH.js gzip 1.81 kB 1.81 kB
edge-ssr-HASH.js gzip 256 B 256 B
head-HASH.js gzip 351 B 352 B
hooks-HASH.js gzip 384 B 383 B
image-HASH.js gzip 580 B 581 B
index-HASH.js gzip 260 B 260 B
link-HASH.js gzip 2.49 kB 2.49 kB
routerDirect..HASH.js gzip 320 B 319 B
script-HASH.js gzip 386 B 386 B
withRouter-HASH.js gzip 315 B 315 B
1afbb74e6ecf..834.css gzip 106 B 106 B
Total 7.97 kB 7.97 kB ✅ -1 B

Server

Edge SSR
Canary PR Change
edge-ssr.js gzip 126 kB 126 kB
page.js gzip 249 kB 249 kB
Total 375 kB 375 kB ⚠️ +141 B
Middleware
Canary PR Change
middleware-b..fest.js gzip 615 B 613 B
middleware-r..fest.js gzip 156 B 155 B
middleware.js gzip 33.3 kB 33 kB
edge-runtime..pack.js gzip 842 B 842 B
Total 34.9 kB 34.6 kB ✅ -322 B
Build Details
Build Manifests
Canary PR Change
_buildManifest.js gzip 732 B 736 B
Total 732 B 736 B ⚠️ +4 B
Build Cache
Canary PR Change
0.pack gzip 3.79 MB 3.81 MB 🔴 +14.2 kB (+0%)
index.pack gzip 102 kB 103 kB
index.pack.old gzip 102 kB 102 kB
Total 4 MB 4.01 MB ⚠️ +14 kB

🔄 Shared (bundler-independent)

Runtimes
Canary PR Change
app-page-exp...dev.js gzip 311 kB 311 kB
app-page-exp..prod.js gzip 166 kB 166 kB
app-page-tur...dev.js gzip 311 kB 311 kB
app-page-tur..prod.js gzip 166 kB 166 kB
app-page-tur...dev.js gzip 308 kB 308 kB
app-page-tur..prod.js gzip 164 kB 164 kB
app-page.run...dev.js gzip 308 kB 308 kB
app-page.run..prod.js gzip 164 kB 164 kB
app-route-ex...dev.js gzip 70.4 kB 70.4 kB
app-route-ex..prod.js gzip 48.9 kB 48.9 kB
app-route-tu...dev.js gzip 70.4 kB 70.4 kB
app-route-tu..prod.js gzip 48.9 kB 49 kB
app-route-tu...dev.js gzip 70 kB 70 kB
app-route-tu..prod.js gzip 48.7 kB 48.7 kB
app-route.ru...dev.js gzip 69.9 kB 70 kB
app-route.ru..prod.js gzip 48.7 kB 48.7 kB
dist_client_...dev.js gzip 324 B 324 B
dist_client_...dev.js gzip 326 B 326 B
dist_client_...dev.js gzip 318 B 318 B
dist_client_...dev.js gzip 317 B 317 B
pages-api-tu...dev.js gzip 43.1 kB 43.1 kB
pages-api-tu..prod.js gzip 32.8 kB 32.9 kB
pages-api.ru...dev.js gzip 43.1 kB 43.1 kB
pages-api.ru..prod.js gzip 32.8 kB 32.8 kB
pages-turbo....dev.js gzip 52.4 kB 52.4 kB
pages-turbo...prod.js gzip 39.3 kB 39.4 kB
pages.runtim...dev.js gzip 52.3 kB 52.4 kB
pages.runtim..prod.js gzip 39.3 kB 39.3 kB
server.runti..prod.js gzip 62.5 kB 62.5 kB
Total 2.77 MB 2.77 MB ⚠️ +518 B
📝 Changed Files (24 files)

Files with changes:

  • app-page-exp..ntime.dev.js
  • app-page-exp..time.prod.js
  • app-page-tur..ntime.dev.js
  • app-page-tur..time.prod.js
  • app-page-tur..ntime.dev.js
  • app-page-tur..time.prod.js
  • app-page.runtime.dev.js
  • app-page.runtime.prod.js
  • app-route-ex..ntime.dev.js
  • app-route-ex..time.prod.js
  • app-route-tu..ntime.dev.js
  • app-route-tu..time.prod.js
  • app-route-tu..ntime.dev.js
  • app-route-tu..time.prod.js
  • app-route.runtime.dev.js
  • app-route.ru..time.prod.js
  • pages-api-tu..ntime.dev.js
  • pages-api-tu..time.prod.js
  • pages-api.runtime.dev.js
  • pages-api.ru..time.prod.js
  • ... and 4 more
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@ijjk ijjk force-pushed the ijjk/optimize-handler-deps branch from 6b97780 to a00eb64 Compare January 30, 2026 00:34
@vercel vercel deleted a comment from nextjs-bot Jan 30, 2026
@ijjk ijjk force-pushed the ijjk/optimize-handler-deps branch from a00eb64 to 1183c48 Compare January 30, 2026 01:04
@nextjs-bot nextjs-bot added the Turbopack Related to Turbopack with Next.js. label Jan 30, 2026
@ijjk ijjk force-pushed the ijjk/optimize-handler-deps branch from 226eb80 to 73be352 Compare January 30, 2026 01:51
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codspeed-hq bot commented Jan 30, 2026

Merging this PR will not alter performance

✅ 17 untouched benchmarks
⏩ 3 skipped benchmarks1


Comparing ijjk/optimize-handler-deps (3e9a738) with canary (1711bb3)

Open in CodSpeed

Footnotes

  1. 3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.

@ijjk ijjk force-pushed the ijjk/optimize-handler-deps branch from 73be352 to 1efa09b Compare January 30, 2026 01:54
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@ijjk ijjk force-pushed the ijjk/optimize-handler-deps branch from 1efa09b to e83b120 Compare January 30, 2026 02:00
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@ijjk ijjk force-pushed the ijjk/optimize-handler-deps branch from 5f45b5c to 3e9a738 Compare January 30, 2026 02:46
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@ijjk ijjk force-pushed the ijjk/optimize-handler-deps branch from 3e9a738 to fc378d1 Compare January 30, 2026 05:16
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@ijjk ijjk marked this pull request as ready for review January 30, 2026 06:35
@ijjk ijjk requested review from feedthejim and ztanner January 30, 2026 06:36
"/node_modules/@swc/helpers/*",
"/node_modules/client-only/*",
"/node_modules/detect-libc/*",
"/node_modules/next/dist/build/adapter/setup-node-env.external.js",
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@mischnic mischnic Jan 30, 2026

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Should this file also be used as an external in minimal mode?
Because I'd have expected it to show up in the other snapshot down below as well then

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The code path that pulls this in is dead code eliminated in next-minimal-server

@ijjk ijjk merged commit c9dde8c into canary Jan 30, 2026
157 of 180 checks passed
@ijjk ijjk deleted the ijjk/optimize-handler-deps branch January 30, 2026 17:26
@vercel vercel deleted a comment from nextjs-bot Jan 30, 2026
ijjk added a commit that referenced this pull request Feb 2, 2026
ijjk added a commit that referenced this pull request Feb 2, 2026
Partial revert of #89269 the
additional tracing is still necessary for webpack so this re-adds that
and removes the silent failing to register require-hook.

E2E deploy tests run
https://github.com/vercel/next.js/actions/runs/21599777917
bgub pushed a commit to bgub/next.js that referenced this pull request Feb 5, 2026
Partial revert of vercel#89269 the
additional tracing is still necessary for webpack so this re-adds that
and removes the silent failing to register require-hook.

E2E deploy tests run
https://github.com/vercel/next.js/actions/runs/21599777917
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4 participants