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add env var to enable advanced webpack logging and profiling #23178

Merged
merged 1 commit into from
Mar 18, 2021
Merged

add env var to enable advanced webpack logging and profiling #23178

merged 1 commit into from
Mar 18, 2021

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sokra
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@sokra sokra commented Mar 18, 2021

This allows to use __NEXT_WEBPACK_LOGGING to enable verbose webpack logging output to investigate into performance and cache problems.

__NEXT_WEBPACK_LOGGING=1 enables some basic logging

__NEXT_WEBPACK_LOGGING=infrastructure enables only infrastructure logging

__NEXT_WEBPACK_LOGGING=profile-client enables deep profile output of the client build

__NEXT_WEBPACK_LOGGING=profile-server same for the server

__NEXT_WEBPACK_LOGGING=profile-client,infrastructure combines multiple things

@ijjk
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ijjk commented Mar 18, 2021

Stats from current PR

Default Server Mode (Decrease detected ✓)
General Overall increase ⚠️
vercel/next.js canary vercel/next.js feature/webpack-logging Change
buildDuration 10s 11s ⚠️ +996ms
nodeModulesSize 43.6 MB 43.6 MB ⚠️ +4.11 kB
Page Load Tests Overall decrease ⚠️
vercel/next.js canary vercel/next.js feature/webpack-logging Change
/ failed reqs 0 0 ✓
/ total time (seconds) 1.762 1.964 ⚠️ +0.2
/ avg req/sec 1418.8 1273.03 ⚠️ -145.77
/error-in-render failed reqs 0 0 ✓
/error-in-render total time (seconds) 1.008 1.161 ⚠️ +0.15
/error-in-render avg req/sec 2480.21 2152.59 ⚠️ -327.62
Client Bundles (main, webpack, commons)
vercel/next.js canary vercel/next.js feature/webpack-logging Change
677f882d2ed8..a2e7.js gzip 13.4 kB 13.4 kB ✓
framework.HASH.js gzip 39 kB 39 kB ✓
main-HASH.js gzip 7.14 kB 7.14 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 feature/webpack-logging 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 feature/webpack-logging Change
_app-fde3324..9dd1.js gzip 1.28 kB 1.28 kB ✓
_error-af59f..582f.js gzip 3.46 kB 3.46 kB ✓
amp-9716187d..0aa8.js gzip 536 B 536 B ✓
hooks-107e90..74c7.js gzip 888 B 888 B ✓
index-ac435c..ecf2.js gzip 227 B 227 B ✓
link-e6cee42..49eb.js gzip 1.64 kB 1.64 kB ✓
routerDirect..dc9d.js gzip 303 B 303 B ✓
withRouter-6..0e02.js gzip 302 B 302 B ✓
Overall change 8.64 kB 8.64 kB ✓
Client Build Manifests
vercel/next.js canary vercel/next.js feature/webpack-logging Change
_buildManifest.js gzip 346 B 346 B ✓
Overall change 346 B 346 B ✓
Rendered Page Sizes
vercel/next.js canary vercel/next.js feature/webpack-logging Change
index.html gzip 614 B 614 B ✓
link.html gzip 622 B 622 B ✓
withRouter.html gzip 609 B 609 B ✓
Overall change 1.84 kB 1.84 kB ✓
Serverless Mode
General Overall increase ⚠️
vercel/next.js canary vercel/next.js feature/webpack-logging Change
buildDuration 12.3s 12.6s ⚠️ +246ms
nodeModulesSize 43.6 MB 43.6 MB ⚠️ +4.11 kB
Client Bundles (main, webpack, commons)
vercel/next.js canary vercel/next.js feature/webpack-logging Change
677f882d2ed8..a2e7.js gzip 13.4 kB 13.4 kB ✓
framework.HASH.js gzip 39 kB 39 kB ✓
main-HASH.js gzip 7.14 kB 7.14 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 feature/webpack-logging 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 feature/webpack-logging Change
_app-fde3324..9dd1.js gzip 1.28 kB 1.28 kB ✓
_error-af59f..582f.js gzip 3.46 kB 3.46 kB ✓
amp-9716187d..0aa8.js gzip 536 B 536 B ✓
hooks-107e90..74c7.js gzip 888 B 888 B ✓
index-ac435c..ecf2.js gzip 227 B 227 B ✓
link-e6cee42..49eb.js gzip 1.64 kB 1.64 kB ✓
routerDirect..dc9d.js gzip 303 B 303 B ✓
withRouter-6..0e02.js gzip 302 B 302 B ✓
Overall change 8.64 kB 8.64 kB ✓
Client Build Manifests
vercel/next.js canary vercel/next.js feature/webpack-logging Change
_buildManifest.js gzip 346 B 346 B ✓
Overall change 346 B 346 B ✓
Serverless bundles
vercel/next.js canary vercel/next.js feature/webpack-logging Change
_error.js 1.02 MB 1.02 MB ✓
404.html 2.67 kB 2.67 kB ✓
500.html 2.65 kB 2.65 kB ✓
amp.amp.html 10.6 kB 10.6 kB ✓
amp.html 1.86 kB 1.86 kB ✓
hooks.html 1.92 kB 1.92 kB ✓
index.js 1.02 MB 1.02 MB ✓
link.js 1.08 MB 1.08 MB ✓
routerDirect.js 1.07 MB 1.07 MB ✓
withRouter.js 1.07 MB 1.07 MB ✓
Overall change 5.27 MB 5.27 MB ✓
Webpack 5 Mode (Decrease detected ✓)
General Overall increase ⚠️
vercel/next.js canary vercel/next.js feature/webpack-logging Change
buildDuration 12.3s 13.1s ⚠️ +831ms
nodeModulesSize 43.6 MB 43.6 MB ⚠️ +4.11 kB
Page Load Tests Overall decrease ⚠️
vercel/next.js canary vercel/next.js feature/webpack-logging Change
/ failed reqs 0 0 ✓
/ total time (seconds) 1.927 1.94 ⚠️ +0.01
/ avg req/sec 1297.17 1288.43 ⚠️ -8.74
/error-in-render failed reqs 0 0 ✓
/error-in-render total time (seconds) 1.151 1.175 ⚠️ +0.02
/error-in-render avg req/sec 2171.69 2127.3 ⚠️ -44.39
Client Bundles (main, webpack, commons)
vercel/next.js canary vercel/next.js feature/webpack-logging Change
597-12fee761..569d.js gzip 13.3 kB 13.3 kB ✓
framework.HASH.js gzip 39.3 kB 39.3 kB ✓
main-HASH.js gzip 7.1 kB 7.1 kB ✓
webpack-HASH.js gzip 993 B 993 B ✓
Overall change 60.7 kB 60.7 kB ✓
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js feature/webpack-logging 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 feature/webpack-logging Change
_app-d0eb668..79ef.js gzip 1.28 kB 1.28 kB ✓
_error-d12ff..6063.js gzip 3.4 kB 3.4 kB ✓
amp-127483e4..9cd8.js gzip 560 B 560 B ✓
hooks-75994b..62d3.js gzip 924 B 924 B ✓
index-ac1ee6..819e.js gzip 243 B 243 B ✓
link-1cd4709..71e5.js gzip 1.65 kB 1.65 kB ✓
routerDirect..4d90.js gzip 333 B 333 B ✓
withRouter-0..60b0.js gzip 329 B 329 B ✓
Overall change 8.72 kB 8.72 kB ✓
Client Build Manifests
vercel/next.js canary vercel/next.js feature/webpack-logging Change
_buildManifest.js gzip 324 B 324 B ✓
Overall change 324 B 324 B ✓
Rendered Page Sizes
vercel/next.js canary vercel/next.js feature/webpack-logging Change
index.html gzip 587 B 587 B ✓
link.html gzip 594 B 594 B ✓
withRouter.html gzip 582 B 582 B ✓
Overall change 1.76 kB 1.76 kB ✓

Diffs

Diff for index.html 
@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/",
         "query": {},
-        "buildId": "19cNAIC9aRhzrf67FRv0G",
+        "buildId": "L75_6V_1EWUP53HsXtMpB",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/19cNAIC9aRhzrf67FRv0G/_buildManifest.js"
+      src="/_next/static/L75_6V_1EWUP53HsXtMpB/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/19cNAIC9aRhzrf67FRv0G/_ssgManifest.js"
+      src="/_next/static/L75_6V_1EWUP53HsXtMpB/_ssgManifest.js"
       async=""
     ></script>
   </body>
Diff for link.html 
@@ -48,7 +48,7 @@
         "props": { "pageProps": {} },
         "page": "/link",
         "query": {},
-        "buildId": "19cNAIC9aRhzrf67FRv0G",
+        "buildId": "L75_6V_1EWUP53HsXtMpB",
         "isFallback": false,
         "gip": true
       }
@@ -82,11 +82,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/19cNAIC9aRhzrf67FRv0G/_buildManifest.js"
+      src="/_next/static/L75_6V_1EWUP53HsXtMpB/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/19cNAIC9aRhzrf67FRv0G/_ssgManifest.js"
+      src="/_next/static/L75_6V_1EWUP53HsXtMpB/_ssgManifest.js"
       async=""
     ></script>
   </body>
Diff for withRouter.html 
@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/withRouter",
         "query": {},
-        "buildId": "19cNAIC9aRhzrf67FRv0G",
+        "buildId": "L75_6V_1EWUP53HsXtMpB",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/19cNAIC9aRhzrf67FRv0G/_buildManifest.js"
+      src="/_next/static/L75_6V_1EWUP53HsXtMpB/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/19cNAIC9aRhzrf67FRv0G/_ssgManifest.js"
+      src="/_next/static/L75_6V_1EWUP53HsXtMpB/_ssgManifest.js"
       async=""
     ></script>
   </body>
Commit: 35f778d

@kodiakhq kodiakhq bot merged commit 75c62cb into canary Mar 18, 2021
@kodiakhq kodiakhq bot deleted the feature/webpack-logging branch March 18, 2021 09:46
flybayer pushed a commit to blitz-js/next.js that referenced this pull request Apr 29, 2021
@sokra
add env var to enable advanced webpack logging and profiling (vercel#…
2567708 
…23178)

This allows to use `__NEXT_WEBPACK_LOGGING` to enable verbose webpack logging output to investigate into performance and cache problems.

`__NEXT_WEBPACK_LOGGING=1` enables some basic logging

`__NEXT_WEBPACK_LOGGING=infrastructure` enables only infrastructure logging

`__NEXT_WEBPACK_LOGGING=profile-client` enables deep profile output of the client build

`__NEXT_WEBPACK_LOGGING=profile-server` same for the server

`__NEXT_WEBPACK_LOGGING=profile-client,infrastructure` combines multiple things
@vercel vercel locked as resolved and limited conversation to collaborators Jan 28, 2022
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@timneutkens timneutkens timneutkens approved these changes

@divmain divmain Awaiting requested review from divmain

@ijjk ijjk Awaiting requested review from ijjk ijjk is a code owner

@lfades lfades Awaiting requested review from lfades

@Timer Timer Awaiting requested review from Timer

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@sokra @ijjk @timneutkens