Speed up initial page render by gwer · Pull Request #23196 · vercel/next.js

gwer · 2021-03-18T15:25:55Z

Should fix #23187

First render of each page has large TTFB. It can be seen in any example (e.g. api-routes-apollo-server-and-client-auth-app).
$ yarn create next-app --example api-routes-apollo-server-and-client-auth
$ yarn build
$ NODE_ENV=production yarn start
First request of localhost:3000/about has TTFB about 1–1.5s. All subsequent requests will have TTFB about 20ms. This is also reproducible if using a simple custom server.

This overhead is due to the fact that dependencies are imported on demand when the user requests a page (

next.js/packages/next/next-server/server/next-server.ts

Lines 1276 to 1280 in 27555c8

const components = await loadComponents(

this.distDir,

pagePath!,

!this.renderOpts.dev && this._isLikeServerless

)

).

In real complex applications this overhead can increase TTFB to tens of seconds.

The second time the page loads faster, since the modules are cached (in ssr-module-cache.js).

Module import is reading the file and interpreting the code. These are two very slow operations, especially if there is a lot of code.

Let's imagine an application with two pages: page1 and page2. It will compiled into the next 4 modules: _app, _document, page1, page2. Using this application can be summarized as the following table.

Cache Action Missing dependencies Speed

[] Server start [] fast

[] Request page1 [_app, _document, page1] slow

[_app, _document, page1] Request page1 [] fast

[_app, _document, page1] Request page2 [page2] medium

[_app, _document, page1, page2] Request page2 [] fast

You can see freeze even if page is statically optimized (because _app and _document are imported even in the case of static optimization).

I think some issues and duscussions about performance (e.g. #12447) is about this overhead.

But! I have a workaround. It looks like warming up the cache.
const path = require("path");
const serverPath = path.join(__dirname, "./.next/server");

module.exports = () => {
  try {
    const pagesManifest = require(path.join(serverPath, "pages-manifest.json"));

    Object.values(pagesManifest).forEach((dep) => {
      if (path.extname(dep) !== ".js") {
        return;
      }

      console.log("preimport ", dep);
      require(path.join(serverPath, dep));
    });
  } catch (e) {}
};
Full example:

https://github.com/gwer/next-js-initial-freeze-workaround

https://github.com/gwer/next-js-initial-freeze-workaround/blob/master/pages-preimport.js

If you run this function before starting the custom server, it will save you from overhead.

Cache Action Missing dependencies Speed

[] Server start [_app, _document, page1, page2] slow

[_app, _document, page1, page2] Request page1 [] fast

[_app, _document, page1, page2] Request page1 [] fast

[_app, _document, page1, page2] Request page2 [] fast

[_app, _document, page1, page2] Request page2 [] fast

This approach has two minor drawbacks:

Server starts slower.

Memory consumption grows faster. But the peak memory consumption is the same as without using the workaround.

ijjk · 2021-03-18T15:32:47Z

Failing test suites

Commit: 658eb91

test/integration/app-document-import-order/test/index.test.js

Root components import order > root components should be imported in this order _document > _app > page in order to respect side effects

Expand output

● Root components import order › root components should be imported in this order _document > _app > page in order to respect side effects

expect(received).toEqual(expected) // deep equality

Expected: "_document"
Received: "_app"

  44 |
  45 |     Array.from(sideEffectCalls).forEach((sideEffectCall, index) => {
> 46 |       expect($(sideEffectCall).text()).toEqual(expectSideEffectsOrder[index])
     |                                        ^
  47 |     })
  48 |   }
  49 |

  at forEach (integration/app-document-import-order/test/index.test.js:46:40)
      at Array.forEach (<anonymous>)
  at Object.respectsSideEffects (integration/app-document-import-order/test/index.test.js:45:33)

test/integration/serverless/test/index.test.js

Serverless > should render the page
Serverless > should add autoExport for auto pre-rendered pages
Serverless > should not add autoExport for non pre-rendered pages
Serverless > should serve file from public folder
Serverless > should not infinity loop on a 404 static file
Serverless > should render the page with dynamic import
Serverless > should render the page with same dynamic import
Serverless > should render 404
Serverless > should render 404 for /_next/static
Serverless > should render an AMP page
Serverless > should have correct amphtml rel link
Serverless > should have correct canonical link
Serverless > should have correct canonical link (auto-export link)
Serverless > should render correctly when importing isomorphic-unfetch
Serverless > should render correctly when importing isomorphic-unfetch on the client side
Serverless > should render correctly when importing isomorphic-unfetch CJS
Serverless > should render correctly when importing isomorphic-unfetch CJS on the client side
Serverless > should reply on API request successfully
Serverless > should reply on dynamic API request successfully
Serverless > should reply on dynamic API request successfully with query parameters
Serverless > should reply on dynamic API index request successfully
Serverless > should reply on dynamic API index request successfully with query parameters
Serverless > should reply with redirect on API request with trailing slash
Serverless > should reply on API request with trailing slash successfully
Serverless > should have the correct query string for a dynamic route
Serverless > should have the correct query string for a now route
Serverless > should have the correct query string for a now route with invalid matches but correct path
Serverless > should have the correct query string for a catch all now route
Serverless > should log error in API route correctly
Serverless > With basic usage > should allow etag header support
Serverless > With basic usage > should set Content-Length header

Expand output

● Serverless › should render the page

FetchError: request to http://localhost:39695/ failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should add autoExport for auto pre-rendered pages

FetchError: request to http://localhost:39695/ failed, reason: read ECONNRESET

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should not add autoExport for non pre-rendered pages

FetchError: request to http://localhost:39695/fetch failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should serve file from public folder

FetchError: request to http://localhost:39695/hello.txt failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should not infinity loop on a 404 static file

FetchError: request to http://localhost:39695/static/404 failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should not infinity loop on a 404 static file

expect.assertions(2)

Expected two assertions to be called but received one assertion call.

  72 |
  73 |   it('should not infinity loop on a 404 static file', async () => {
> 74 |     expect.assertions(2)
     |            ^
  75 |
  76 |     // ensure top-level static does not exist (important for test)
  77 |     // we expect /public/static, though.

  at Object.<anonymous> (integration/serverless/test/index.test.js:74:12)

● Serverless › should render the page with dynamic import

FetchError: request to http://localhost:39695/dynamic failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should render the page with same dynamic import

FetchError: request to http://localhost:39695/dynamic-two failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should render 404

FetchError: request to http://localhost:39695/404 failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should render 404 for /_next/static

FetchError: request to http://localhost:39695/_next/static failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should render an AMP page

FetchError: request to http://localhost:39695/some-amp?amp=1 failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should have correct amphtml rel link

FetchError: request to http://localhost:39695/some-amp failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should have correct canonical link

FetchError: request to http://localhost:39695/some-amp?amp=1 failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should have correct canonical link (auto-export link)

FetchError: request to http://localhost:39695/some-amp.amp failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should render correctly when importing isomorphic-unfetch

FetchError: request to http://localhost:39695/fetch failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should render correctly when importing isomorphic-unfetch on the client side

WebDriverError: unknown error: net::ERR_CONNECTION_REFUSED
  (Session info: headless chrome=89.0.4389.90)

  177 |   console.log(`\n> Loading browser with ${url}\n`)
  178 |
> 179 |   await browser.get(url)
      |   ^
  180 |   console.log(`\n> Loaded browser with ${url}\n`)
  181 |
  182 |   // Wait for application to hydrate

  at Object.throwDecodedError (../node_modules/selenium-webdriver/lib/error.js:550:15)
  at parseHttpResponse (../node_modules/selenium-webdriver/lib/http.js:565:13)
  at Executor.execute (../node_modules/selenium-webdriver/lib/http.js:491:26)
  at thenableWebDriverProxy.execute (../node_modules/selenium-webdriver/lib/webdriver.js:700:17)
  at _default (lib/next-webdriver.js:179:3)
  at Object.<anonymous> (integration/serverless/test/index.test.js:135:21)

● Serverless › should render correctly when importing isomorphic-unfetch CJS

FetchError: request to http://localhost:39695/fetch-cjs failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should render correctly when importing isomorphic-unfetch CJS on the client side

WebDriverError: unknown error: net::ERR_CONNECTION_REFUSED
  (Session info: headless chrome=89.0.4389.90)

  177 |   console.log(`\n> Loading browser with ${url}\n`)
  178 |
> 179 |   await browser.get(url)
      |   ^
  180 |   console.log(`\n> Loaded browser with ${url}\n`)
  181 |
  182 |   // Wait for application to hydrate

  at Object.throwDecodedError (../node_modules/selenium-webdriver/lib/error.js:550:15)
  at parseHttpResponse (../node_modules/selenium-webdriver/lib/http.js:565:13)
  at Executor.execute (../node_modules/selenium-webdriver/lib/http.js:491:26)
  at thenableWebDriverProxy.execute (../node_modules/selenium-webdriver/lib/webdriver.js:700:17)
  at _default (lib/next-webdriver.js:179:3)
  at Object.<anonymous> (integration/serverless/test/index.test.js:159:21)

● Serverless › should reply on API request successfully

FetchError: request to http://localhost:39695/api/hello failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should reply on dynamic API request successfully

FetchError: request to http://localhost:39695/api/posts/post-1 failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should reply on dynamic API request successfully with query parameters

FetchError: request to http://localhost:39695/api/posts/post-1?param=val failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should reply on dynamic API index request successfully

FetchError: request to http://localhost:39695/api/dynamic/post-1 failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should reply on dynamic API index request successfully with query parameters

FetchError: request to http://localhost:39695/api/dynamic/post-1?param=val failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should reply with redirect on API request with trailing slash

FetchError: request to http://localhost:39695/api/hello/? failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should reply on API request with trailing slash successfully

FetchError: request to http://localhost:39695/api/hello/ failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should have the correct query string for a dynamic route

FetchError: request to http://localhost:39695/dr/test%20%25%20123 failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should have the correct query string for a now route

FetchError: request to http://localhost:39695/dr/[slug] failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should have the correct query string for a now route with invalid matches but correct path

FetchError: request to http://localhost:39695/dr/first failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should have the correct query string for a catch all now route

FetchError: request to http://localhost:39695/catchall/[...slug] failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › should log error in API route correctly

FetchError: request to http://localhost:39695/api/top-level-error failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › With basic usage › should allow etag header support

FetchError: request to http://localhost:39695/ failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Serverless › With basic usage › should set Content-Length header

FetchError: request to http://localhost:39695/ failed, reason: connect ECONNREFUSED 127.0.0.1:39695

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

ijjk · 2021-03-18T15:37:49Z

Stats from current PR

Default Server Mode (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	13s	12.7s	-349ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +789 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.346	2.345	0
/ avg req/sec	1065.66	1066.25	+0.59
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.606	1.562	-0.04
/error-in-render avg req/sec	1556.27	1601.01	+44.74

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	612 B	612 B	✓
link.html gzip	621 B	621 B	✓
withRouter.html gzip	607 B	607 B	✓
Overall change	1.84 kB	1.84 kB	✓

Serverless Mode

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	14.5s	14.8s	⚠️ +225ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +789 B

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Serverless bundles

	vercel/next.js canary	gwer/next.js pages_preimport	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 (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	15.4s	15.8s	⚠️ +328ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +789 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.38	2.314	-0.07
/ avg req/sec	1050.41	1080.34	+29.93
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.647	1.6	-0.05
/error-in-render avg req/sec	1517.92	1562.23	+44.31

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	324 B	324 B	✓
Overall change	324 B	324 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	588 B	588 B	✓
link.html gzip	595 B	595 B	✓
withRouter.html gzip	581 B	581 B	✓
Overall change	1.76 kB	1.76 kB	✓

Diffs

Diff for index.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/",
         "query": {},
-        "buildId": "yRiWtyBhw4rbW_9lTy4vz",
+        "buildId": "m8TngpCHhG5F6dTUAnB0s",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/yRiWtyBhw4rbW_9lTy4vz/_buildManifest.js"
+      src="/_next/static/m8TngpCHhG5F6dTUAnB0s/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/yRiWtyBhw4rbW_9lTy4vz/_ssgManifest.js"
+      src="/_next/static/m8TngpCHhG5F6dTUAnB0s/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for link.html

@@ -48,7 +48,7 @@
         "props": { "pageProps": {} },
         "page": "/link",
         "query": {},
-        "buildId": "yRiWtyBhw4rbW_9lTy4vz",
+        "buildId": "m8TngpCHhG5F6dTUAnB0s",
         "isFallback": false,
         "gip": true
       }
@@ -82,11 +82,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/yRiWtyBhw4rbW_9lTy4vz/_buildManifest.js"
+      src="/_next/static/m8TngpCHhG5F6dTUAnB0s/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/yRiWtyBhw4rbW_9lTy4vz/_ssgManifest.js"
+      src="/_next/static/m8TngpCHhG5F6dTUAnB0s/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for withRouter.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/withRouter",
         "query": {},
-        "buildId": "yRiWtyBhw4rbW_9lTy4vz",
+        "buildId": "m8TngpCHhG5F6dTUAnB0s",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/yRiWtyBhw4rbW_9lTy4vz/_buildManifest.js"
+      src="/_next/static/m8TngpCHhG5F6dTUAnB0s/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/yRiWtyBhw4rbW_9lTy4vz/_ssgManifest.js"
+      src="/_next/static/m8TngpCHhG5F6dTUAnB0s/_ssgManifest.js"
       async=""
     ></script>
   </body>

Commit: 658eb91

ijjk · 2021-03-18T15:57:07Z

Failing test suites

Commit: fe5acd6

test/integration/404-page-custom-error/test/index.test.js

Default 404 Page with custom _error > serverless mode > should respond to 404 correctly
Default 404 Page with custom _error > serverless mode > should render error correctly
Default 404 Page with custom _error > serverless mode > should render index page normal

Expand output

● Default 404 Page with custom _error › serverless mode › should respond to 404 correctly

FetchError: request to http://localhost:36247/404 failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Default 404 Page with custom _error › serverless mode › should render error correctly

FetchError: request to http://localhost:36247/err failed, reason: read ECONNRESET

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Default 404 Page with custom _error › serverless mode › should render index page normal

FetchError: request to http://localhost:36247/ failed, reason: connect ECONNREFUSED 127.0.0.1:36247

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

test/integration/404-page-ssg/test/index.test.js

404 Page Support SSG > serverless mode > should respond to 404 correctly
404 Page Support SSG > serverless mode > should render error correctly
404 Page Support SSG > serverless mode > should not show an error in the logs for 404 SSG
404 Page Support SSG > serverless mode > should render index page normal
404 Page Support SSG > serverless mode > should not revalidate custom 404 page

Expand output

● 404 Page Support SSG › serverless mode › should respond to 404 correctly

FetchError: request to http://localhost:36877/404 failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● 404 Page Support SSG › serverless mode › should render error correctly

FetchError: request to http://localhost:36877/err failed, reason: read ECONNRESET

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● 404 Page Support SSG › serverless mode › should not show an error in the logs for 404 SSG

FetchError: request to http://localhost:36877/non-existent failed, reason: connect ECONNREFUSED 127.0.0.1:36877

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● 404 Page Support SSG › serverless mode › should render index page normal

FetchError: request to http://localhost:36877/ failed, reason: connect ECONNREFUSED 127.0.0.1:36877

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● 404 Page Support SSG › serverless mode › should not revalidate custom 404 page

FetchError: request to http://localhost:36877/non-existent failed, reason: connect ECONNREFUSED 127.0.0.1:36877

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

test/integration/amphtml-ssg/test/index.test.js

AMP SSG Support > serverless mode > should load an amp first page correctly
AMP SSG Support > serverless mode > should load a hybrid amp page without query correctly
AMP SSG Support > serverless mode > should load dynamic hybrid SSG/AMP page
AMP SSG Support > serverless mode > should load dynamic hybrid SSG/AMP page with trailing slash
AMP SSG Support > serverless mode > should load dynamic hybrid SSG/AMP page with query
AMP SSG Support > serverless mode > should load a hybrid amp page with query correctly

Expand output

● AMP SSG Support › serverless mode › should load an amp first page correctly

FetchError: request to http://localhost:44039/amp failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● AMP SSG Support › serverless mode › should load a hybrid amp page without query correctly

FetchError: request to http://localhost:44039/hybrid failed, reason: connect ECONNREFUSED 127.0.0.1:44039

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● AMP SSG Support › serverless mode › should load dynamic hybrid SSG/AMP page

FetchError: request to http://localhost:44039/blog/post-1 failed, reason: connect ECONNREFUSED 127.0.0.1:44039

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● AMP SSG Support › serverless mode › should load dynamic hybrid SSG/AMP page with trailing slash

FetchError: request to http://localhost:44039/blog/post-1/ failed, reason: connect ECONNREFUSED 127.0.0.1:44039

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● AMP SSG Support › serverless mode › should load dynamic hybrid SSG/AMP page with query

FetchError: request to http://localhost:44039/blog/post-1?amp=1 failed, reason: connect ECONNREFUSED 127.0.0.1:44039

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● AMP SSG Support › serverless mode › should load a hybrid amp page with query correctly

FetchError: request to http://localhost:44039/hybrid?amp=1 failed, reason: connect ECONNREFUSED 127.0.0.1:44039

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

test/integration/bigint/test/index.test.js

bigint API route support > serverless mode > should return 200
bigint API route support > serverless mode > should return the BigInt result text

Expand output

● bigint API route support › serverless mode › should return 200

FetchError: request to http://localhost:40283/api/bigint failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● bigint API route support › serverless mode › should return the BigInt result text

FetchError: request to http://localhost:40283/api/bigint failed, reason: connect ECONNREFUSED 127.0.0.1:40283

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

test/integration/api-support/test/index.test.js

API routes > Serverless support > should render page
API routes > Serverless support > should return 404 for undefined path
API routes > Serverless support > should not conflict with /api routes
API routes > Serverless support > should set cors headers when adding cors middleware
API routes > Serverless support > should work with index api
API routes > Serverless support > should return custom error
API routes > Serverless support > should throw Internal Server Error
API routes > Serverless support > should throw Internal Server Error (async)
API routes > Serverless support > should parse JSON body
API routes > Serverless support > should special-case empty JSON body
API routes > Serverless support > should support boolean for JSON in api page
API routes > Serverless support > should support undefined response body
API routes > Serverless support > should return error with invalid JSON
API routes > Serverless support > should return error exceeded body limit
API routes > Serverless support > should parse bigger body then 1mb
API routes > Serverless support > should support etag spec
API routes > Serverless support > should parse urlencoded body
API routes > Serverless support > should parse body in handler
API routes > Serverless support > should parse body with config
API routes > Serverless support > should show friendly error for invalid redirect
API routes > Serverless support > should show friendly error in case of passing null as first argument redirect
API routes > Serverless support > should redirect with status code 307
API routes > Serverless support > should redirect to login
API routes > Serverless support > should redirect with status code 301
API routes > Serverless support > should return empty query object
API routes > Serverless support > should parse query correctly
API routes > Serverless support > should return empty cookies object
API routes > Serverless support > should return cookies object
API routes > Serverless support > should return 200 on POST on pages
API routes > Serverless support > should return JSON on post on API
API routes > Serverless support > should return data on dynamic route
API routes > Serverless support > should work with dynamic params and search string
API routes > Serverless support > should work with dynamic params and search string like lambda
API routes > Serverless support > should prioritize a non-dynamic page
API routes > Serverless support > should return data on dynamic nested route
API routes > Serverless support > should 404 on optional dynamic api page
API routes > Serverless support > should return data on dynamic optional nested route
API routes > Serverless support > should work with child_process correctly
API routes > Serverless support > should build api routes

Expand output

● API routes › Serverless support › should render page

FetchError: request to http://localhost:36349/ failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return 404 for undefined path

FetchError: request to http://localhost:36349/api/not/unexisting/page/really failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should not conflict with /api routes

FetchError: request to http://localhost:36349/api-conflict failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should set cors headers when adding cors middleware

FetchError: request to http://localhost:36349/api/cors failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should work with index api

FetchError: request to http://localhost:36349/api failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return custom error

FetchError: request to http://localhost:36349/api/error failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should throw Internal Server Error

FetchError: request to http://localhost:36349/api/user-error failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should throw Internal Server Error (async)

FetchError: request to http://localhost:36349/api/user-error-async failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should parse JSON body

FetchError: request to http://localhost:36349/api/parse failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should special-case empty JSON body

FetchError: request to http://localhost:36349/api/parse failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should support boolean for JSON in api page

FetchError: request to http://localhost:36349/api/bool failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should support undefined response body

FetchError: request to http://localhost:36349/api/undefined failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return error with invalid JSON

FetchError: request to http://localhost:36349/api/parse failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return error exceeded body limit

expect(received).toBe(expected) // Object.is equality

Expected: "EPIPE"
Received: "ECONNREFUSED"

  163 |       // TODO: investigate re-enabling this after above issue has been
  164 |       // addressed in node or `node-fetch`
> 165 |       expect(error.code).toBe('EPIPE')
      |                          ^
  166 |     } else {
  167 |       expect(res.status).toEqual(413)
  168 |       expect(res.statusText).toEqual('Body exceeded 1mb limit')

  at Object.<anonymous> (integration/api-support/test/index.test.js:165:26)

● API routes › Serverless support › should parse bigger body then 1mb

FetchError: request to http://localhost:36349/api/big-parse failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should support etag spec

FetchError: request to http://localhost:36349/api/blog failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should parse urlencoded body

FetchError: request to http://localhost:36349/api/parse failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should parse body in handler

FetchError: request to http://localhost:36349/api/no-parsing failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should parse body with config

FetchError: request to http://localhost:36349/api/parsing failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should show friendly error for invalid redirect

FetchError: request to http://localhost:36349/api/redirect-error failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should show friendly error in case of passing null as first argument redirect

FetchError: request to http://localhost:36349/api/redirect-null failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should redirect with status code 307

FetchError: request to http://localhost:36349/api/redirect-307 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should redirect to login

FetchError: request to http://localhost:36349/api/redirect-307 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should redirect with status code 301

FetchError: request to http://localhost:36349/api/redirect-301 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return empty query object

FetchError: request to http://localhost:36349/api/query failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should parse query correctly

FetchError: request to http://localhost:36349/api/query?a=1&b=2&a=3 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return empty cookies object

FetchError: request to http://localhost:36349/api/cookies failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return cookies object

FetchError: request to http://localhost:36349/api/cookies failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return 200 on POST on pages

FetchError: request to http://localhost:36349/user failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return JSON on post on API

FetchError: request to http://localhost:36349/api/blog?title=Nextjs failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return data on dynamic route

FetchError: request to http://localhost:36349/api/post-1 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should work with dynamic params and search string

FetchError: request to http://localhost:36349/api/post-1?val=1 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should work with dynamic params and search string like lambda

FetchError: request to http://localhost:36349/api/post-1?val=1 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should prioritize a non-dynamic page

FetchError: request to http://localhost:36349/api/post-1/comments failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return data on dynamic nested route

FetchError: request to http://localhost:36349/api/post-1/comment-1 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should 404 on optional dynamic api page

FetchError: request to http://localhost:36349/api/blog/543/comment failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should return data on dynamic optional nested route

FetchError: request to http://localhost:36349/api/blog/post-1/comment/1 failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should work with child_process correctly

FetchError: request to http://localhost:36349/api/child-process failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● API routes › Serverless support › should build api routes

FetchError: request to http://localhost:36349/api/nextjs failed, reason: connect ECONNREFUSED 127.0.0.1:36349

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

test/integration/fallback-route-params/test/index.test.js

Fallback Dynamic Route Params > serverless mode > should have correct fallback query (skeleton)
Fallback Dynamic Route Params > serverless mode > should have correct fallback query (hydration)

Expand output

● Fallback Dynamic Route Params › serverless mode › should have correct fallback query (skeleton)

FetchError: request to http://localhost:36945/first failed, reason: socket hang up

  at ClientRequest.<anonymous> (../node_modules/node-fetch/lib/index.js:1461:11)

● Fallback Dynamic Route Params › serverless mode › should have correct fallback query (hydration)

WebDriverError: unknown error: net::ERR_CONNECTION_REFUSED
  (Session info: headless chrome=89.0.4389.90)

  177 |   console.log(`\n> Loading browser with ${url}\n`)
  178 |
> 179 |   await browser.get(url)
      |   ^
  180 |   console.log(`\n> Loaded browser with ${url}\n`)
  181 |
  182 |   // Wait for application to hydrate

  at Object.throwDecodedError (../node_modules/selenium-webdriver/lib/error.js:550:15)
  at parseHttpResponse (../node_modules/selenium-webdriver/lib/http.js:565:13)
  at Executor.execute (../node_modules/selenium-webdriver/lib/http.js:491:26)
  at thenableWebDriverProxy.execute (../node_modules/selenium-webdriver/lib/webdriver.js:700:17)
  at _default (lib/next-webdriver.js:179:3)
  at Object.<anonymous> (integration/fallback-route-params/test/index.test.js:33:21)

ijjk · 2021-03-18T16:02:07Z

Stats from current PR

Default Server Mode (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	11.5s	11.4s	-61ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +1.04 kB

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	1.942	1.955	⚠️ +0.01
/ avg req/sec	1287.23	1278.99	⚠️ -8.24
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.186	1.228	⚠️ +0.04
/error-in-render avg req/sec	2108.72	2035.9	⚠️ -72.82

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	612 B	612 B	✓
link.html gzip	621 B	621 B	✓
withRouter.html gzip	607 B	607 B	✓
Overall change	1.84 kB	1.84 kB	✓

Serverless Mode

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	13.2s	13.2s	⚠️ +17ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +1.04 kB

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Serverless bundles

	vercel/next.js canary	gwer/next.js pages_preimport	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 (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	13.4s	13.3s	-107ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +1.04 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	1.973	1.943	-0.03
/ avg req/sec	1267.18	1286.94	+19.76
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.208	1.196	-0.01
/error-in-render avg req/sec	2070.31	2090.63	+20.32

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	324 B	324 B	✓
Overall change	324 B	324 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	588 B	588 B	✓
link.html gzip	595 B	595 B	✓
withRouter.html gzip	581 B	581 B	✓
Overall change	1.76 kB	1.76 kB	✓

Diffs

Diff for index.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/",
         "query": {},
-        "buildId": "g2MQjtiqFq3wNR0RH-wtN",
+        "buildId": "njlnP-LECeugtSRgXrxvB",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/g2MQjtiqFq3wNR0RH-wtN/_buildManifest.js"
+      src="/_next/static/njlnP-LECeugtSRgXrxvB/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/g2MQjtiqFq3wNR0RH-wtN/_ssgManifest.js"
+      src="/_next/static/njlnP-LECeugtSRgXrxvB/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for link.html

@@ -48,7 +48,7 @@
         "props": { "pageProps": {} },
         "page": "/link",
         "query": {},
-        "buildId": "g2MQjtiqFq3wNR0RH-wtN",
+        "buildId": "njlnP-LECeugtSRgXrxvB",
         "isFallback": false,
         "gip": true
       }
@@ -82,11 +82,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/g2MQjtiqFq3wNR0RH-wtN/_buildManifest.js"
+      src="/_next/static/njlnP-LECeugtSRgXrxvB/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/g2MQjtiqFq3wNR0RH-wtN/_ssgManifest.js"
+      src="/_next/static/njlnP-LECeugtSRgXrxvB/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for withRouter.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/withRouter",
         "query": {},
-        "buildId": "g2MQjtiqFq3wNR0RH-wtN",
+        "buildId": "njlnP-LECeugtSRgXrxvB",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/g2MQjtiqFq3wNR0RH-wtN/_buildManifest.js"
+      src="/_next/static/njlnP-LECeugtSRgXrxvB/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/g2MQjtiqFq3wNR0RH-wtN/_ssgManifest.js"
+      src="/_next/static/njlnP-LECeugtSRgXrxvB/_ssgManifest.js"
       async=""
     ></script>
   </body>

Commit: fe5acd6

ijjk · 2021-03-18T17:23:54Z

Stats from current PR

Default Server Mode (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	13.4s	13.2s	-189ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +1.12 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.42	2.357	-0.06
/ avg req/sec	1032.94	1060.71	+27.77
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.706	1.692	-0.01
/error-in-render avg req/sec	1465.05	1477.14	+12.09

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	612 B	612 B	✓
link.html gzip	621 B	621 B	✓
withRouter.html gzip	607 B	607 B	✓
Overall change	1.84 kB	1.84 kB	✓

Serverless Mode

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	15.7s	15.4s	-307ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +1.12 kB

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Serverless bundles

	vercel/next.js canary	gwer/next.js pages_preimport	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 (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	16s	16.1s	⚠️ +79ms
nodeModulesSize	43.6 MB	43.6 MB	⚠️ +1.12 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.369	2.282	-0.09
/ avg req/sec	1055.52	1095.43	+39.91
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.649	1.678	⚠️ +0.03
/error-in-render avg req/sec	1515.77	1489.85	⚠️ -25.92

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	324 B	324 B	✓
Overall change	324 B	324 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	588 B	588 B	✓
link.html gzip	595 B	595 B	✓
withRouter.html gzip	581 B	581 B	✓
Overall change	1.76 kB	1.76 kB	✓

Diffs

Diff for index.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/",
         "query": {},
-        "buildId": "0Iz04gKa5EUcul5ev2ETj",
+        "buildId": "C_yWK6owWd6IbK4-eI6nC",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/0Iz04gKa5EUcul5ev2ETj/_buildManifest.js"
+      src="/_next/static/C_yWK6owWd6IbK4-eI6nC/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/0Iz04gKa5EUcul5ev2ETj/_ssgManifest.js"
+      src="/_next/static/C_yWK6owWd6IbK4-eI6nC/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for link.html

@@ -48,7 +48,7 @@
         "props": { "pageProps": {} },
         "page": "/link",
         "query": {},
-        "buildId": "0Iz04gKa5EUcul5ev2ETj",
+        "buildId": "C_yWK6owWd6IbK4-eI6nC",
         "isFallback": false,
         "gip": true
       }
@@ -82,11 +82,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/0Iz04gKa5EUcul5ev2ETj/_buildManifest.js"
+      src="/_next/static/C_yWK6owWd6IbK4-eI6nC/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/0Iz04gKa5EUcul5ev2ETj/_ssgManifest.js"
+      src="/_next/static/C_yWK6owWd6IbK4-eI6nC/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for withRouter.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/withRouter",
         "query": {},
-        "buildId": "0Iz04gKa5EUcul5ev2ETj",
+        "buildId": "C_yWK6owWd6IbK4-eI6nC",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/0Iz04gKa5EUcul5ev2ETj/_buildManifest.js"
+      src="/_next/static/C_yWK6owWd6IbK4-eI6nC/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/0Iz04gKa5EUcul5ev2ETj/_ssgManifest.js"
+      src="/_next/static/C_yWK6owWd6IbK4-eI6nC/_ssgManifest.js"
       async=""
     ></script>
   </body>

Commit: fe699a8

Co-authored-by: Vytenis <projektas@gmail.com>

ijjk · 2021-03-24T07:56:49Z

Stats from current PR

Default Server Mode (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	13s	12.8s	-238ms
nodeModulesSize	61.3 MB	61.3 MB	⚠️ +1.12 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.129	2.067	-0.06
/ avg req/sec	1174.29	1209.73	+35.44
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.233	1.213	-0.02
/error-in-render avg req/sec	2027.32	2061.1	+33.78

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	613 B	613 B	✓
link.html gzip	621 B	621 B	✓
withRouter.html gzip	607 B	607 B	✓
Overall change	1.84 kB	1.84 kB	✓

Serverless Mode

General Overall increase ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
buildDuration	14.6s	14.8s	⚠️ +185ms
nodeModulesSize	61.3 MB	61.3 MB	⚠️ +1.12 kB

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	346 B	346 B	✓
Overall change	346 B	346 B	✓

Serverless bundles

	vercel/next.js canary	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
buildDuration	15.5s	15.4s	-92ms
nodeModulesSize	61.3 MB	61.3 MB	⚠️ +1.12 kB

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	gwer/next.js pages_preimport	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.066	2.035	-0.03
/ avg req/sec	1210.24	1228.21	+17.97
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.274	1.292	⚠️ +0.02
/error-in-render avg req/sec	1961.59	1934.6	⚠️ -26.99

Client Bundles (main, webpack, commons)

	vercel/next.js canary	gwer/next.js pages_preimport	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	7.11 kB	7.11 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	gwer/next.js pages_preimport	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	gwer/next.js pages_preimport	Change
_app-b5edc60..e5c2.js gzip	1.29 kB	1.29 kB	✓
_error-b58c1..9b8e.js gzip	3.4 kB	3.4 kB	✓
amp-89a5460c..567f.js gzip	558 B	558 B	✓
hooks-8c2e74..be37.js gzip	924 B	924 B	✓
index-fec729..83b2.js gzip	243 B	243 B	✓
link-3631090..4cab.js gzip	1.65 kB	1.65 kB	✓
routerDirect..20d7.js gzip	328 B	328 B	✓
withRouter-b..a4b9.js gzip	326 B	326 B	✓
Overall change	8.72 kB	8.72 kB	✓

Client Build Manifests

	vercel/next.js canary	gwer/next.js pages_preimport	Change
_buildManifest.js gzip	325 B	325 B	✓
Overall change	325 B	325 B	✓

Rendered Page Sizes

	vercel/next.js canary	gwer/next.js pages_preimport	Change
index.html gzip	584 B	584 B	✓
link.html gzip	592 B	592 B	✓
withRouter.html gzip	581 B	581 B	✓
Overall change	1.76 kB	1.76 kB	✓

Diffs

Diff for index.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/",
         "query": {},
-        "buildId": "o2bY8W-mps2tnT6iLPR3O",
+        "buildId": "DBxYvDU2Y_RiVc9hX-Hwa",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/o2bY8W-mps2tnT6iLPR3O/_buildManifest.js"
+      src="/_next/static/DBxYvDU2Y_RiVc9hX-Hwa/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/o2bY8W-mps2tnT6iLPR3O/_ssgManifest.js"
+      src="/_next/static/DBxYvDU2Y_RiVc9hX-Hwa/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for link.html

@@ -48,7 +48,7 @@
         "props": { "pageProps": {} },
         "page": "/link",
         "query": {},
-        "buildId": "o2bY8W-mps2tnT6iLPR3O",
+        "buildId": "DBxYvDU2Y_RiVc9hX-Hwa",
         "isFallback": false,
         "gip": true
       }
@@ -82,11 +82,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/o2bY8W-mps2tnT6iLPR3O/_buildManifest.js"
+      src="/_next/static/DBxYvDU2Y_RiVc9hX-Hwa/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/o2bY8W-mps2tnT6iLPR3O/_ssgManifest.js"
+      src="/_next/static/DBxYvDU2Y_RiVc9hX-Hwa/_ssgManifest.js"
       async=""
     ></script>
   </body>

Diff for withRouter.html

@@ -43,7 +43,7 @@
         "props": { "pageProps": {} },
         "page": "/withRouter",
         "query": {},
-        "buildId": "o2bY8W-mps2tnT6iLPR3O",
+        "buildId": "DBxYvDU2Y_RiVc9hX-Hwa",
         "isFallback": false,
         "gip": true
       }
@@ -77,11 +77,11 @@
       async=""
     ></script>
     <script
-      src="/_next/static/o2bY8W-mps2tnT6iLPR3O/_buildManifest.js"
+      src="/_next/static/DBxYvDU2Y_RiVc9hX-Hwa/_buildManifest.js"
       async=""
     ></script>
     <script
-      src="/_next/static/o2bY8W-mps2tnT6iLPR3O/_ssgManifest.js"
+      src="/_next/static/DBxYvDU2Y_RiVc9hX-Hwa/_ssgManifest.js"
       async=""
     ></script>
   </body>

Commit: 8780f62

ijjk · 2021-07-21T00:51:11Z

Hi, I'm gonna close this as it seems like further is discussion/investigation is needed, please continue any discussion on this in the initial mentioned issued.

Add pages pre-import

658eb91

gwer requested review from Timer, divmain, ijjk, lfades and timneutkens as code owners March 18, 2021 15:25

ijjk added the type: next label Mar 18, 2021

Fix deps order

fe5acd6

Try to fix serverless

fe699a8

gwer mentioned this pull request Mar 22, 2021

Add _document and _app pre-import #23261

Merged

FDiskas reviewed Mar 24, 2021

View reviewed changes

Comment thread packages/next/next-server/server/next-server.ts Outdated

gwer requested a review from shuding as a code owner March 24, 2021 07:45

Update packages/next/next-server/server/next-server.ts (@FDiskas)

8780f62

Co-authored-by: Vytenis <projektas@gmail.com>

ijjk closed this Jul 21, 2021

gwer mentioned this pull request Jul 21, 2021

Slow initial page render #23187

Closed

vercel locked as resolved and limited conversation to collaborators Jan 28, 2022

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Speed up initial page render#23196

Speed up initial page render#23196
gwer wants to merge 4 commits into
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gwer:pages_preimport

gwer commented Mar 18, 2021

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ijjk commented Mar 18, 2021 •

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ijjk commented Jul 21, 2021

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	const components = await loadComponents(
	this.distDir,
	pagePath!,
	!this.renderOpts.dev && this._isLikeServerless
	)

Cache	Action	Missing dependencies	Speed
[]	Server start	[]	fast
[]	Request page1	[`_app`, `_document`, `page1`]	slow
[`_app`, `_document`, `page1`]	Request page1	[]	fast
[`_app`, `_document`, `page1`]	Request page2	[`page2`]	medium
[`_app`, `_document`, `page1`, `page2`]	Request page2	[]	fast

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gwer commented Mar 18, 2021

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ijjk commented Jul 21, 2021

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ijjk commented Mar 18, 2021 •

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