Improve server performance by skipping decode/re-encode #17323
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Stats from current PRDefault Server Mode (Increase detected
|
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| buildDuration | 13.7s | 13.3s | -405ms |
| nodeModulesSize | 62.9 MB | 62.9 MB |
Page Load Tests Overall increase ✓
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| / failed reqs | 0 | 0 | ✓ |
| / total time (seconds) | 2.551 | 2.539 | -0.01 |
| / avg req/sec | 980.15 | 984.5 | +4.35 |
| /error-in-render failed reqs | 0 | 0 | ✓ |
| /error-in-render total time (seconds) | 1.567 | 1.56 | -0.01 |
| /error-in-render avg req/sec | 1594.96 | 1602.44 | +7.48 |
Client Bundles (main, webpack, commons)
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| 677f882d2ed8..9339.js gzip | 10.9 kB | 10.9 kB | ✓ |
| framework.HASH.js gzip | 39 kB | 39 kB | ✓ |
| main-772ea11..1d22.js gzip | 7.16 kB | 7.16 kB | ✓ |
| webpack-e067..f178.js gzip | 751 B | 751 B | ✓ |
| Overall change | 57.8 kB | 57.8 kB | ✓ |
Client Bundles (main, webpack, commons) Modern
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| 677f882d2ed8..dule.js gzip | 6.77 kB | 6.77 kB | ✓ |
| framework.HA..dule.js gzip | 39 kB | 39 kB | ✓ |
| main-911f3f8..dule.js gzip | 6.23 kB | 6.23 kB | ✓ |
| webpack-07c5..dule.js gzip | 751 B | 751 B | ✓ |
| Overall change | 52.7 kB | 52.7 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| polyfills-4b..e242.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| _app-9a0b9e1..b37e.js gzip | 1.28 kB | 1.28 kB | ✓ |
| _error-ed1b0..8fbd.js gzip | 3.44 kB | 3.44 kB | ✓ |
| hooks-89731c..c609.js gzip | 887 B | 887 B | ✓ |
| index-17468f..5d83.js gzip | 227 B | 227 B | ✓ |
| link-d2344ce..8b36.js gzip | 1.3 kB | 1.3 kB | ✓ |
| routerDirect..924c.js gzip | 284 B | 284 B | ✓ |
| withRouter-7..c13d.js gzip | 284 B | 284 B | ✓ |
| Overall change | 7.71 kB | 7.71 kB | ✓ |
Client Pages Modern
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| _app-75d3a82..dule.js gzip | 625 B | 625 B | ✓ |
| _error-4469a..dule.js gzip | 2.29 kB | 2.29 kB | ✓ |
| hooks-cbf13f..dule.js gzip | 387 B | 387 B | ✓ |
| index-b9a643..dule.js gzip | 226 B | 226 B | ✓ |
| link-f8c0daf..dule.js gzip | 1.26 kB | 1.26 kB | ✓ |
| routerDirect..dule.js gzip | 284 B | 284 B | ✓ |
| withRouter-f..dule.js gzip | 282 B | 282 B | ✓ |
| Overall change | 5.36 kB | 5.36 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 322 B | 322 B | ✓ |
| _buildManife..dule.js gzip | 329 B | 329 B | ✓ |
| Overall change | 651 B | 651 B | ✓ |
Rendered Page Sizes
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| index.html gzip | 1 kB | 1 kB | ✓ |
| link.html gzip | 1.01 kB | 1.01 kB | ✓ |
| withRouter.html gzip | 997 B | 997 B | ✓ |
| Overall change | 3.01 kB | 3.01 kB | ✓ |
Serverless Mode (Decrease detected ✓)
General Overall increase ⚠️
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| buildDuration | 14.9s | 15s | |
| nodeModulesSize | 62.9 MB | 62.9 MB |
Client Bundles (main, webpack, commons)
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| 677f882d2ed8..9339.js gzip | 10.9 kB | 10.9 kB | ✓ |
| framework.HASH.js gzip | 39 kB | 39 kB | ✓ |
| main-772ea11..1d22.js gzip | 7.16 kB | 7.16 kB | ✓ |
| webpack-e067..f178.js gzip | 751 B | 751 B | ✓ |
| Overall change | 57.8 kB | 57.8 kB | ✓ |
Client Bundles (main, webpack, commons) Modern
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| 677f882d2ed8..dule.js gzip | 6.77 kB | 6.77 kB | ✓ |
| framework.HA..dule.js gzip | 39 kB | 39 kB | ✓ |
| main-911f3f8..dule.js gzip | 6.23 kB | 6.23 kB | ✓ |
| webpack-07c5..dule.js gzip | 751 B | 751 B | ✓ |
| Overall change | 52.7 kB | 52.7 kB | ✓ |
Legacy Client Bundles (polyfills)
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| polyfills-4b..e242.js gzip | 31 kB | 31 kB | ✓ |
| Overall change | 31 kB | 31 kB | ✓ |
Client Pages
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| _app-9a0b9e1..b37e.js gzip | 1.28 kB | 1.28 kB | ✓ |
| _error-ed1b0..8fbd.js gzip | 3.44 kB | 3.44 kB | ✓ |
| hooks-89731c..c609.js gzip | 887 B | 887 B | ✓ |
| index-17468f..5d83.js gzip | 227 B | 227 B | ✓ |
| link-d2344ce..8b36.js gzip | 1.3 kB | 1.3 kB | ✓ |
| routerDirect..924c.js gzip | 284 B | 284 B | ✓ |
| withRouter-7..c13d.js gzip | 284 B | 284 B | ✓ |
| Overall change | 7.71 kB | 7.71 kB | ✓ |
Client Pages Modern
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| _app-75d3a82..dule.js gzip | 625 B | 625 B | ✓ |
| _error-4469a..dule.js gzip | 2.29 kB | 2.29 kB | ✓ |
| hooks-cbf13f..dule.js gzip | 387 B | 387 B | ✓ |
| index-b9a643..dule.js gzip | 226 B | 226 B | ✓ |
| link-f8c0daf..dule.js gzip | 1.26 kB | 1.26 kB | ✓ |
| routerDirect..dule.js gzip | 284 B | 284 B | ✓ |
| withRouter-f..dule.js gzip | 282 B | 282 B | ✓ |
| Overall change | 5.36 kB | 5.36 kB | ✓ |
Client Build Manifests
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| _buildManifest.js gzip | 322 B | 322 B | ✓ |
| _buildManife..dule.js gzip | 329 B | 329 B | ✓ |
| Overall change | 651 B | 651 B | ✓ |
Serverless bundles Overall decrease ✓
| vercel/next.js canary | Timer/next.js perf/no-reencode | Change | |
|---|---|---|---|
| _error.js | 1.06 MB | 1.06 MB | -249 B |
| 404.html | 4.34 kB | 4.34 kB | ✓ |
| hooks.html | 3.92 kB | 3.92 kB | ✓ |
| index.js | 1.06 MB | 1.06 MB | -249 B |
| link.js | 1.1 MB | 1.1 MB | -249 B |
| routerDirect.js | 1.1 MB | 1.1 MB | -249 B |
| withRouter.js | 1.1 MB | 1.1 MB | -249 B |
| Overall change | 5.41 MB | 5.41 MB | -1.25 kB |
ijjk
approved these changes
Sep 24, 2020
HitoriSensei
pushed a commit
to HitoriSensei/next.js
that referenced
this pull request
Sep 26, 2020
Prior to this pull request, Next.js would immediately decode all URLs sent to its server (via `path-match`). This was rarely needed, and Next.js would typically re-encode the incoming request right away (see all the `encodeURIComponent`s removed in PR diff). This adds unnecessary performance overhead. Long term, this will also help prevent weird encoding edge-cases like vercel#10004, vercel#10022, vercel#11371, et al. --- No new tests are necessary for this change because we've extensively tested these edge cases with existing tests. One test was updated to reflect that we skip decoding in a 404 scenario. Let's see if all the existing tests pass!
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Prior to this pull request, Next.js would immediately decode all URLs sent to its server (via
path-match).This was rarely needed, and Next.js would typically re-encode the incoming request right away (see all the
encodeURIComponents removed in PR diff). This adds unnecessary performance overhead.Long term, this will also help prevent weird encoding edge-cases like #10004, #10022, #11371, et al.
No new tests are necessary for this change because we've extensively tested these edge cases with existing tests.
One test was updated to reflect that we skip decoding in a 404 scenario.
Let's see if all the existing tests pass!