Reduce hello-world middleware bundle size from 128k to 88k#35512
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kodiakhq[bot] merged 2 commits intovercel:canaryfrom Mar 22, 2022
Merged
Reduce hello-world middleware bundle size from 128k to 88k#35512kodiakhq[bot] merged 2 commits intovercel:canaryfrom
kodiakhq[bot] merged 2 commits intovercel:canaryfrom
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Moves two utiloty functions from `server/router.ts` into their own file. This avoids the middleware pulling in the full Next.js router into its bundle.
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Stats from current PRDefault Build (Increase detected
|
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| buildDuration | 16.1s | 15.8s | -351ms |
| buildDurationCached | 6.2s | 6.2s | |
| nodeModulesSize | 467 MB | 467 MB |
Page Load Tests Overall increase ✓
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| / failed reqs | 0 | 0 | ✓ |
| / total time (seconds) | 3.225 | 3.162 | -0.06 |
| / avg req/sec | 775.26 | 790.74 | +15.48 |
| /error-in-render failed reqs | 0 | 0 | ✓ |
| /error-in-render total time (seconds) | 1.432 | 1.367 | -0.06 |
| /error-in-render avg req/sec | 1745.22 | 1828.54 | +83.32 |
Client Bundles (main, webpack)
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| 925.HASH.js gzip | 179 B | 179 B | ✓ |
| framework-HASH.js gzip | 42 kB | 42 kB | ✓ |
| main-HASH.js gzip | 28 kB | 28 kB | ✓ |
| webpack-HASH.js gzip | 1.44 kB | 1.44 kB | ✓ |
| Overall change | 71.6 kB | 71.6 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| polyfills-HASH.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| _app-HASH.js gzip | 1.36 kB | 1.36 kB | ✓ |
| _error-HASH.js gzip | 192 B | 192 B | ✓ |
| amp-HASH.js gzip | 309 B | 309 B | ✓ |
| css-HASH.js gzip | 327 B | 327 B | ✓ |
| dynamic-HASH.js gzip | 2.57 kB | 2.57 kB | ✓ |
| head-HASH.js gzip | 351 B | 351 B | ✓ |
| hooks-HASH.js gzip | 920 B | 920 B | ✓ |
| image-HASH.js gzip | 5.48 kB | 5.48 kB | ✓ |
| index-HASH.js gzip | 263 B | 263 B | ✓ |
| link-HASH.js gzip | 2.26 kB | 2.26 kB | ✓ |
| routerDirect..HASH.js gzip | 320 B | 320 B | ✓ |
| script-HASH.js gzip | 387 B | 387 B | ✓ |
| withRouter-HASH.js gzip | 319 B | 319 B | ✓ |
| 85e02e95b279..7e3.css gzip | 107 B | 107 B | ✓ |
| Overall change | 15.2 kB | 15.2 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 460 B | 460 B | ✓ |
| Overall change | 460 B | 460 B | ✓ |
Rendered Page Sizes
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| index.html gzip | 531 B | 531 B | ✓ |
| link.html gzip | 544 B | 544 B | ✓ |
| withRouter.html gzip | 524 B | 524 B | ✓ |
| Overall change | 1.6 kB | 1.6 kB | ✓ |
Default Build with SWC (Decrease detected ✓)
General Overall increase ⚠️
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| buildDuration | 19.2s | 19.3s | |
| buildDurationCached | 6.3s | 6.2s | -149ms |
| nodeModulesSize | 467 MB | 467 MB |
Page Load Tests Overall decrease ⚠️
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| / failed reqs | 0 | 0 | ✓ |
| / total time (seconds) | 3.192 | 3.204 | |
| / avg req/sec | 783.1 | 780.27 | |
| /error-in-render failed reqs | 0 | 0 | ✓ |
| /error-in-render total time (seconds) | 1.365 | 1.41 | |
| /error-in-render avg req/sec | 1831.25 | 1773.32 |
Client Bundles (main, webpack)
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| 925.HASH.js gzip | 178 B | 178 B | ✓ |
| framework-HASH.js gzip | 42.3 kB | 42.3 kB | ✓ |
| main-HASH.js gzip | 28.2 kB | 28.2 kB | ✓ |
| webpack-HASH.js gzip | 1.45 kB | 1.45 kB | ✓ |
| Overall change | 72.1 kB | 72.1 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| polyfills-HASH.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| _app-HASH.js gzip | 1.35 kB | 1.35 kB | ✓ |
| _error-HASH.js gzip | 179 B | 179 B | ✓ |
| amp-HASH.js gzip | 313 B | 313 B | ✓ |
| css-HASH.js gzip | 324 B | 324 B | ✓ |
| dynamic-HASH.js gzip | 2.56 kB | 2.56 kB | ✓ |
| head-HASH.js gzip | 351 B | 351 B | ✓ |
| hooks-HASH.js gzip | 921 B | 921 B | ✓ |
| image-HASH.js gzip | 5.59 kB | 5.59 kB | ✓ |
| index-HASH.js gzip | 261 B | 261 B | ✓ |
| link-HASH.js gzip | 2.33 kB | 2.33 kB | ✓ |
| routerDirect..HASH.js gzip | 322 B | 322 B | ✓ |
| script-HASH.js gzip | 388 B | 388 B | ✓ |
| withRouter-HASH.js gzip | 317 B | 317 B | ✓ |
| 85e02e95b279..7e3.css gzip | 107 B | 107 B | ✓ |
| Overall change | 15.3 kB | 15.3 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 458 B | 458 B | ✓ |
| Overall change | 458 B | 458 B | ✓ |
Rendered Page Sizes
| vercel/next.js canary | cramforce/next.js smaller-middleware | Change | |
|---|---|---|---|
| index.html gzip | 531 B | 531 B | ✓ |
| link.html gzip | 546 B | 546 B | ✓ |
| withRouter.html gzip | 527 B | 527 B | ✓ |
| Overall change | 1.6 kB | 1.6 kB | ✓ |
ijjk
approved these changes
Mar 22, 2022
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Moves two utility functions from
server/router.tsinto their own file. This avoids the middleware pulling in the full Next.js router into its bundle.There are probably more opportunities like this, but this is a good start. Middleware should likely be bundled by a non-chunking optimizing compiler.