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lazy load postcss plugins #25317

Merged
merged 1 commit into from
May 21, 2021
Merged

lazy load postcss plugins #25317

merged 1 commit into from
May 21, 2021

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sokra
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@sokra sokra commented May 20, 2021

Improves startup performance

for vercel/front by ~1s

@ijjk
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ijjk commented May 20, 2021

Stats from current PR

Default Server Mode (Increase detected ⚠️)
General Overall increase ⚠️
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
buildDuration 11.5s 11.8s ⚠️ +281ms
buildDurationCached 3.6s 3.2s -332ms
nodeModulesSize 46.7 MB 46.7 MB ⚠️ +1.5 kB
Page Load Tests Overall increase ✓
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
/ failed reqs 0 0 ✓
/ total time (seconds) 2.093 2.043 -0.05
/ avg req/sec 1194.67 1223.89 +29.22
/error-in-render failed reqs 0 0 ✓
/error-in-render total time (seconds) 1.113 1.076 -0.04
/error-in-render avg req/sec 2245.95 2323.64 +77.69
Client Bundles (main, webpack, commons)
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
framework-HASH.js gzip 39.3 kB 39.3 kB ✓
main-HASH.js gzip 19.4 kB 19.4 kB ✓
webpack-HASH.js gzip 994 B 994 B ✓
Overall change 59.7 kB 59.7 kB ✓
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
polyfills-HASH.js gzip 31.1 kB 31.1 kB ✓
Overall change 31.1 kB 31.1 kB ✓
Client Pages
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
_app-HASH.js gzip 1.02 kB 1.02 kB ✓
_error-HASH.js gzip 3.06 kB 3.06 kB ✓
amp-HASH.js gzip 526 B 526 B ✓
css-HASH.js gzip 334 B 334 B ✓
hooks-HASH.js gzip 890 B 890 B ✓
index-HASH.js gzip 262 B 262 B ✓
link-HASH.js gzip 1.65 kB 1.65 kB ✓
routerDirect..HASH.js gzip 331 B 331 B ✓
withRouter-HASH.js gzip 329 B 329 B ✓
bb14e60e810b..30f.css gzip 125 B 125 B ✓
Overall change 8.54 kB 8.54 kB ✓
Client Build Manifests
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
_buildManifest.js gzip 390 B 390 B ✓
Overall change 390 B 390 B ✓
Rendered Page Sizes
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
index.html gzip 559 B 559 B ✓
link.html gzip 567 B 567 B ✓
withRouter.html gzip 555 B 555 B ✓
Overall change 1.68 kB 1.68 kB ✓
Serverless Mode
General Overall increase ⚠️
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
buildDuration 13.8s 13.7s -104ms
buildDurationCached 4.4s 4.1s -240ms
nodeModulesSize 46.7 MB 46.7 MB ⚠️ +1.5 kB
Client Bundles (main, webpack, commons)
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
framework-HASH.js gzip 39.3 kB 39.3 kB ✓
main-HASH.js gzip 19.4 kB 19.4 kB ✓
webpack-HASH.js gzip 994 B 994 B ✓
Overall change 59.7 kB 59.7 kB ✓
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
polyfills-HASH.js gzip 31.1 kB 31.1 kB ✓
Overall change 31.1 kB 31.1 kB ✓
Client Pages
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
_app-HASH.js gzip 1.02 kB 1.02 kB ✓
_error-HASH.js gzip 3.06 kB 3.06 kB ✓
amp-HASH.js gzip 526 B 526 B ✓
css-HASH.js gzip 334 B 334 B ✓
hooks-HASH.js gzip 890 B 890 B ✓
index-HASH.js gzip 262 B 262 B ✓
link-HASH.js gzip 1.65 kB 1.65 kB ✓
routerDirect..HASH.js gzip 331 B 331 B ✓
withRouter-HASH.js gzip 329 B 329 B ✓
bb14e60e810b..30f.css gzip 125 B 125 B ✓
Overall change 8.54 kB 8.54 kB ✓
Client Build Manifests
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
_buildManifest.js gzip 390 B 390 B ✓
Overall change 390 B 390 B ✓
Serverless bundles
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
_error.js 16.9 kB 16.9 kB ✓
404.html 2.42 kB 2.42 kB ✓
500.html 2.41 kB 2.41 kB ✓
amp.amp.html 10.8 kB 10.8 kB ✓
amp.html 1.61 kB 1.61 kB ✓
css.html 1.79 kB 1.79 kB ✓
hooks.html 1.67 kB 1.67 kB ✓
index.js 17.2 kB 17.2 kB ✓
link.js 17.4 kB 17.4 kB ✓
routerDirect.js 17.4 kB 17.4 kB ✓
withRouter.js 17.4 kB 17.4 kB ✓
Overall change 107 kB 107 kB ✓
Webpack 4 Mode (Increase detected ⚠️)
General Overall increase ⚠️
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
buildDuration 10.5s 10.8s ⚠️ +275ms
buildDurationCached 4.6s 4.4s -156ms
nodeModulesSize 46.7 MB 46.7 MB ⚠️ +1.5 kB
Page Load Tests Overall increase ✓
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
/ failed reqs 0 0 ✓
/ total time (seconds) 2.129 2.117 -0.01
/ avg req/sec 1174 1180.98 +6.98
/error-in-render failed reqs 0 0 ✓
/error-in-render total time (seconds) 1.122 1.081 -0.04
/error-in-render avg req/sec 2227.35 2311.82 +84.47
Client Bundles (main, webpack, commons)
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
677f882d2ed8..HASH.js gzip 13.3 kB 13.3 kB ✓
framework.HASH.js gzip 39 kB 39 kB ✓
main-HASH.js gzip 7.25 kB 7.25 kB ✓
webpack-HASH.js gzip 751 B 751 B ✓
Overall change 60.3 kB 60.3 kB ✓
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
polyfills-HASH.js gzip 31.3 kB 31.3 kB ✓
Overall change 31.3 kB 31.3 kB ✓
Client Pages
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
_app-HASH.js gzip 1.28 kB 1.28 kB ✓
_error-HASH.js gzip 3.74 kB 3.74 kB ✓
amp-HASH.js gzip 536 B 536 B ✓
css-HASH.js gzip 339 B 339 B ✓
hooks-HASH.js gzip 887 B 887 B ✓
index-HASH.js gzip 227 B 227 B ✓
link-HASH.js gzip 1.64 kB 1.64 kB ✓
routerDirect..HASH.js gzip 303 B 303 B ✓
withRouter-HASH.js gzip 302 B 302 B ✓
e025d2764813..52f.css gzip 125 B 125 B ✓
Overall change 9.38 kB 9.38 kB ✓
Client Build Manifests
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
_buildManifest.js gzip 420 B 420 B ✓
Overall change 420 B 420 B ✓
Rendered Page Sizes
vercel/next.js canary vercel/next.js perf/lazy-postcss-plugins Change
index.html gzip 613 B 613 B ✓
link.html gzip 619 B 619 B ✓
withRouter.html gzip 607 B 607 B ✓
Overall change 1.84 kB 1.84 kB ✓
Commit: aee72b6

@kodiakhq kodiakhq bot merged commit 7035a03 into canary May 21, 2021
@kodiakhq kodiakhq bot deleted the perf/lazy-postcss-plugins branch May 21, 2021 00:31
@sync-by-unito sync-by-unito bot mentioned this pull request May 26, 2021
Closed
flybayer pushed a commit to blitz-js/next.js that referenced this pull request Jun 1, 2021
@sokra
lazy load postcss plugins (vercel#25317)
ee0bc9c 
Improves startup performance

for vercel/front by ~1s
This was referenced Jul 29, 2021
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@snyk-bot snyk-bot mentioned this pull request Oct 19, 2021
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This was referenced Jan 12, 2022
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@vercel vercel locked as resolved and limited conversation to collaborators Jan 28, 2022
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@ijjk ijjk ijjk approved these changes

@divmain divmain Awaiting requested review from divmain

@lfades lfades Awaiting requested review from lfades

@shuding shuding Awaiting requested review from shuding

@timneutkens timneutkens Awaiting requested review from timneutkens

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@sokra @ijjk