From fa580022624974f4a8d0e0a3b67e1dc2fd54d583 Mon Sep 17 00:00:00 2001 From: Josh Story Date: Mon, 11 Apr 2022 09:13:44 -0700 Subject: [PATCH] [Fizz] Pipeable Stream Perf (#24291) * Add fixture for comparing baseline render perf for renderToString and renderToPipeableStream Modified from ssr2 and https://github.com/SuperOleg39/react-ssr-perf-test * Implement buffering in pipeable streams The previous implementation of pipeable streaming (Node) suffered some performance issues brought about by the high chunk counts and innefficiencies with how node streams handle this situation. In particular the use of cork/uncork was meant to alleviate this but these methods do not do anything unless the receiving Writable Stream implements _writev which many won't. This change adopts the view based buffering techniques previously implemented for the Browser execution context. The main difference is the use of backpressure provided by the writable stream which is not implementable in the other context. Another change to note is the use of standards constructs like TextEncoder and TypedArrays. * Implement encodeInto during flushCompletedQueues encodeInto allows us to write directly to the view buffer that will end up getting streamed instead of encoding into an intermediate buffer and then copying that data. --- fixtures/fizz/README.md | 30 + fixtures/fizz/package.json | 53 + fixtures/fizz/public/main.css | 74 + fixtures/fizz/scripts/build.js | 53 + fixtures/fizz/server/delays.js | 18 + fixtures/fizz/server/render-to-buffer.js | 83 + fixtures/fizz/server/render-to-stream.js | 57 + fixtures/fizz/server/render-to-string.js | 34 + fixtures/fizz/server/server.js | 108 + fixtures/fizz/src/App.js | 26 + fixtures/fizz/src/BigComponent.js | 181 + fixtures/fizz/src/Html.js | 34 + fixtures/fizz/src/index.js | 12 + fixtures/fizz/yarn.lock | 5254 +++++++++++++++++ .../src/ReactServerStreamConfigNode.js | 134 +- scripts/flow/environment.js | 27 + scripts/rollup/bundles.js | 5 +- 17 files changed, 6168 insertions(+), 15 deletions(-) create mode 100644 fixtures/fizz/README.md create mode 100644 fixtures/fizz/package.json create mode 100644 fixtures/fizz/public/main.css create mode 100644 fixtures/fizz/scripts/build.js create mode 100644 fixtures/fizz/server/delays.js create mode 100644 fixtures/fizz/server/render-to-buffer.js create mode 100644 fixtures/fizz/server/render-to-stream.js create mode 100644 fixtures/fizz/server/render-to-string.js create mode 100644 fixtures/fizz/server/server.js create mode 100644 fixtures/fizz/src/App.js create mode 100644 fixtures/fizz/src/BigComponent.js create mode 100644 fixtures/fizz/src/Html.js create mode 100644 fixtures/fizz/src/index.js create mode 100644 fixtures/fizz/yarn.lock diff --git a/fixtures/fizz/README.md b/fixtures/fizz/README.md new file mode 100644 index 000000000000..63acd3ddc545 --- /dev/null +++ b/fixtures/fizz/README.md @@ -0,0 +1,30 @@ +# Fizz Fixtures + +A set of basic tests for Fizz primarily focussed on baseline perfomrance of legacy renderToString and streaming implementations. + +## Setup + +To reference a local build of React, first run `npm run build` at the root +of the React project. Then: + +``` +cd fixtures/fizz +yarn +yarn start +``` + +The `start` command runs a webpack dev server and a server-side rendering server in development mode with hot reloading. + +**Note: whenever you make changes to React and rebuild it, you need to re-run `yarn` in this folder:** + +``` +yarn +``` + +If you want to try the production mode instead run: + +``` +yarn start:prod +``` + +This will pre-build all static resources and then start a server-side rendering HTTP server that hosts the React app and service the static resources (without hot reloading). diff --git a/fixtures/fizz/package.json b/fixtures/fizz/package.json new file mode 100644 index 000000000000..42becc4b8bce --- /dev/null +++ b/fixtures/fizz/package.json @@ -0,0 +1,53 @@ +{ + "name": "react-ssr", + "version": "0.1.0", + "private": true, + "engines": { + "node": ">=14.9.0" + }, + "license": "MIT", + "dependencies": { + "@babel/core": "7.14.3", + "@babel/register": "7.13.16", + "babel-loader": "8.1.0", + "babel-preset-react-app": "10.0.0", + "compression": "^1.7.4", + "concurrently": "^5.3.0", + "express": "^4.17.1", + "nodemon": "^2.0.6", + "react": "link:../../build/node_modules/react", + "react-dom": "link:../../build/node_modules/react-dom", + "react-error-boundary": "^3.1.3", + "resolve": "1.12.0", + "rimraf": "^3.0.2", + "webpack": "4.44.2", + "webpack-cli": "^4.2.0" + }, + "devDependencies": { + "cross-env": "^7.0.3", + "prettier": "1.19.1" + }, + "scripts": { + "start": "concurrently \"npm run server:dev\" \"npm run bundler:dev\"", + "start:prod": "concurrently \"npm run server:prod\" \"npm run bundler:prod\"", + "server:dev": "cross-env NODE_ENV=development nodemon -- --inspect server/server.js", + "server:prod": "cross-env NODE_ENV=production nodemon -- server/server.js", + "bundler:dev": "cross-env NODE_ENV=development nodemon -- scripts/build.js", + "bundler:prod": "cross-env NODE_ENV=production nodemon -- scripts/build.js" + }, + "babel": { + "presets": [ + [ + "react-app", + { + "runtime": "automatic" + } + ] + ] + }, + "nodemonConfig": { + "ignore": [ + "build/*" + ] + } +} diff --git a/fixtures/fizz/public/main.css b/fixtures/fizz/public/main.css new file mode 100644 index 000000000000..34b4ecb1ce7f --- /dev/null +++ b/fixtures/fizz/public/main.css @@ -0,0 +1,74 @@ +body { + font-family: system-ui, sans-serif; +} + +* { + box-sizing: border-box; +} + +nav { + padding: 20px; +} + +.sidebar { + padding: 10px; + height: 500px; + float: left; + width: 30%; +} + +.post { + padding: 20px; + float: left; + width: 60%; +} + +h1, h2 { + padding: 0; +} + +ul, li { + margin: 0; +} + +.post p { + font-size: larger; + font-family: Georgia, serif; +} + +.comments { + margin-top: 40px; +} + +.comment { + border: 2px solid #aaa; + border-radius: 4px; + padding: 20px; +} + +/* https://codepen.io/mandelid/pen/vwKoe */ +.spinner { + display: inline-block; + transition: opacity linear 0.1s; + width: 20px; + height: 20px; + border: 3px solid rgba(80, 80, 80, 0.5); + border-radius: 50%; + border-top-color: #fff; + animation: spin 1s ease-in-out infinite; + opacity: 0; +} +.spinner--active { + opacity: 1; +} + +@keyframes spin { + to { + transform: rotate(360deg); + } +} +@keyframes spin { + to { + transform: rotate(360deg); + } +} \ No newline at end of file diff --git a/fixtures/fizz/scripts/build.js b/fixtures/fizz/scripts/build.js new file mode 100644 index 000000000000..452f7c750f61 --- /dev/null +++ b/fixtures/fizz/scripts/build.js @@ -0,0 +1,53 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +'use strict'; + +const path = require('path'); +const rimraf = require('rimraf'); +const webpack = require('webpack'); + +const isProduction = process.env.NODE_ENV === 'production'; +rimraf.sync(path.resolve(__dirname, '../build')); +webpack( + { + mode: isProduction ? 'production' : 'development', + devtool: isProduction ? 'source-map' : 'cheap-module-source-map', + entry: [path.resolve(__dirname, '../src/index.js')], + output: { + path: path.resolve(__dirname, '../build'), + filename: 'main.js', + }, + module: { + rules: [ + { + test: /\.js$/, + use: 'babel-loader', + exclude: /node_modules/, + }, + ], + }, + }, + (err, stats) => { + if (err) { + console.error(err.stack || err); + if (err.details) { + console.error(err.details); + } + process.exit(1); + } + const info = stats.toJson(); + if (stats.hasErrors()) { + console.log('Finished running webpack with errors.'); + info.errors.forEach(e => console.error(e)); + process.exit(1); + } else { + console.log('Finished running webpack.'); + } + } +); diff --git a/fixtures/fizz/server/delays.js b/fixtures/fizz/server/delays.js new file mode 100644 index 000000000000..20a1e870b4e0 --- /dev/null +++ b/fixtures/fizz/server/delays.js @@ -0,0 +1,18 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +// Tweak these to play with different kinds of latency. + +// How long the data fetches on the server. +exports.API_DELAY = 2000; + +// How long the server waits for data before giving up. +exports.ABORT_DELAY = 10000; + +// How long serving the JS bundles is delayed. +exports.JS_BUNDLE_DELAY = 4000; diff --git a/fixtures/fizz/server/render-to-buffer.js b/fixtures/fizz/server/render-to-buffer.js new file mode 100644 index 000000000000..ba509b812b73 --- /dev/null +++ b/fixtures/fizz/server/render-to-buffer.js @@ -0,0 +1,83 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +import {Writable} from 'stream'; +import * as React from 'react'; +import {renderToPipeableStream} from 'react-dom/server'; +import App from '../src/App'; +import {ABORT_DELAY} from './delays'; + +// In a real setup, you'd read it from webpack build stats. +let assets = { + 'main.js': '/main.js', + 'main.css': '/main.css', +}; + +function HtmlWritable(options) { + Writable.call(this, options); + this.chunks = []; + this.html = ''; +} + +HtmlWritable.prototype = Object.create(Writable.prototype); +HtmlWritable.prototype.getHtml = function getHtml() { + return this.html; +}; +HtmlWritable.prototype._write = function _write(chunk, encoding, callback) { + this.chunks.push(chunk); + callback(); +}; +HtmlWritable.prototype._final = function _final(callback) { + this.html = Buffer.concat(this.chunks).toString(); + callback(); +}; + +module.exports = function render(url, res) { + let writable = new HtmlWritable(); + res.socket.on('error', error => { + console.error('Fatal', error); + }); + let didError = false; + let didFinish = false; + + writable.on('finish', () => { + // If something errored before we started streaming, we set the error code appropriately. + res.statusCode = didError ? 500 : 200; + res.setHeader('Content-type', 'text/html'); + res.send(writable.getHtml()); + }); + + const {pipe, abort} = renderToPipeableStream(, { + bootstrapScripts: [assets['main.js']], + onAllReady() { + // Full completion. + // You can use this for SSG or crawlers. + didFinish = true; + }, + onShellReady() { + // If something errored before we started streaming, we set the error code appropriately. + pipe(writable); + }, + onShellError(x) { + // Something errored before we could complete the shell so we emit an alternative shell. + res.statusCode = 500; + res.send('

Error

'); + }, + onError(x) { + didError = true; + console.error(x); + }, + }); + // Abandon and switch to client rendering if enough time passes. + // Try lowering this to see the client recover. + setTimeout(() => { + if (!didFinish) { + abort(); + } + }, ABORT_DELAY); +}; diff --git a/fixtures/fizz/server/render-to-stream.js b/fixtures/fizz/server/render-to-stream.js new file mode 100644 index 000000000000..063d776a8dd7 --- /dev/null +++ b/fixtures/fizz/server/render-to-stream.js @@ -0,0 +1,57 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +import * as React from 'react'; +import {renderToPipeableStream} from 'react-dom/server'; +import App from '../src/App'; +import {ABORT_DELAY} from './delays'; + +// In a real setup, you'd read it from webpack build stats. +let assets = { + 'main.js': '/main.js', + 'main.css': '/main.css', +}; + +module.exports = function render(url, res) { + // The new wiring is a bit more involved. + res.socket.on('error', error => { + console.error('Fatal', error); + }); + let didError = false; + let didFinish = false; + const {pipe, abort} = renderToPipeableStream(, { + bootstrapScripts: [assets['main.js']], + onAllReady() { + // Full completion. + // You can use this for SSG or crawlers. + didFinish = true; + }, + onShellReady() { + // If something errored before we started streaming, we set the error code appropriately. + res.statusCode = didError ? 500 : 200; + res.setHeader('Content-type', 'text/html'); + setImmediate(() => pipe(res)); + }, + onShellError(x) { + // Something errored before we could complete the shell so we emit an alternative shell. + res.statusCode = 500; + res.send('

Error

'); + }, + onError(x) { + didError = true; + console.error(x); + }, + }); + // Abandon and switch to client rendering if enough time passes. + // Try lowering this to see the client recover. + setTimeout(() => { + if (!didFinish) { + abort(); + } + }, ABORT_DELAY); +}; diff --git a/fixtures/fizz/server/render-to-string.js b/fixtures/fizz/server/render-to-string.js new file mode 100644 index 000000000000..04ffff06b798 --- /dev/null +++ b/fixtures/fizz/server/render-to-string.js @@ -0,0 +1,34 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +import * as React from 'react'; +import {renderToString} from 'react-dom/server'; +import App from '../src/App'; +import {API_DELAY, ABORT_DELAY} from './delays'; +import {performance} from 'perf_hooks'; + +// In a real setup, you'd read it from webpack build stats. +let assets = { + 'main.js': '/main.js', + 'main.css': '/main.css', +}; + +let textEncoder = new TextEncoder(); + +module.exports = function render(url, res) { + let payload = + '' + + renderToString() + + ''; + let arr = textEncoder.encode(payload); + + let buf = Buffer.from(arr); + res.statusCode = 200; + res.setHeader('Content-type', 'text/html'); + res.send(buf); +}; diff --git a/fixtures/fizz/server/server.js b/fixtures/fizz/server/server.js new file mode 100644 index 000000000000..38519e574310 --- /dev/null +++ b/fixtures/fizz/server/server.js @@ -0,0 +1,108 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +'use strict'; + +const babelRegister = require('@babel/register'); +babelRegister({ + ignore: [/[\\\/](build|server\/server|node_modules)[\\\/]/], + presets: [['react-app', {runtime: 'automatic'}]], + plugins: ['@babel/transform-modules-commonjs'], +}); + +const express = require('express'); +const compress = require('compression'); +const {readFileSync} = require('fs'); +const path = require('path'); +const renderToString = require('./render-to-string'); +const renderToStream = require('./render-to-stream'); +const renderToBuffer = require('./render-to-buffer'); +const {JS_BUNDLE_DELAY} = require('./delays'); + +const PORT = process.env.PORT || 4000; +const app = express(); + +app.use(compress()); +app.get( + '/', + handleErrors(async function(req, res) { + await waitForWebpack(); + renderToStream(req.url, res); + }) +); +app.get( + '/string', + handleErrors(async function(req, res) { + await waitForWebpack(); + renderToString(req.url, res); + }) +); +app.get( + '/stream', + handleErrors(async function(req, res) { + await waitForWebpack(); + renderToStream(req.url, res); + }) +); +app.get( + '/buffer', + handleErrors(async function(req, res) { + await waitForWebpack(); + renderToBuffer(req.url, res); + }) +); +app.use(express.static('build')); +app.use(express.static('public')); + +app + .listen(PORT, () => { + console.log(`Listening at ${PORT}...`); + }) + .on('error', function(error) { + if (error.syscall !== 'listen') { + throw error; + } + const isPipe = portOrPipe => Number.isNaN(portOrPipe); + const bind = isPipe(PORT) ? 'Pipe ' + PORT : 'Port ' + PORT; + switch (error.code) { + case 'EACCES': + console.error(bind + ' requires elevated privileges'); + process.exit(1); + break; + case 'EADDRINUSE': + console.error(bind + ' is already in use'); + process.exit(1); + break; + default: + throw error; + } + }); + +function handleErrors(fn) { + return async function(req, res, next) { + try { + return await fn(req, res); + } catch (x) { + next(x); + } + }; +} + +async function waitForWebpack() { + while (true) { + try { + readFileSync(path.resolve(__dirname, '../build/main.js')); + return; + } catch (err) { + console.log( + 'Could not find webpack build output. Will retry in a second...' + ); + await new Promise(resolve => setTimeout(resolve, 1000)); + } + } +} diff --git a/fixtures/fizz/src/App.js b/fixtures/fizz/src/App.js new file mode 100644 index 000000000000..8610a4603ced --- /dev/null +++ b/fixtures/fizz/src/App.js @@ -0,0 +1,26 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +import Html from './Html'; +import BigComponent from './BigComponent'; + +export default function App({assets, title}) { + const components = []; + + for (let i = 0; i <= 250; i++) { + components.push(); + } + + return ( + +

{title}

+ {components} +

all done

+ + ); +} diff --git a/fixtures/fizz/src/BigComponent.js b/fixtures/fizz/src/BigComponent.js new file mode 100644 index 000000000000..e19919910684 --- /dev/null +++ b/fixtures/fizz/src/BigComponent.js @@ -0,0 +1,181 @@ +export default function BigComponent() { + return ( +
+
+

Description

+

+ This page has repeating sections purposefully to create very large + trees that stress the rendering and streaming capabilities of Fizz +

+
+
+

Another Section

+

this section has a list

+
    +
  • item one
    • +
  • item two
    • +
  • item three
    • +
  • item four
    • +
  • item five
    • +
+

it isn't a very interesting list

+
+
+

Smiley Section

+

here is a list of smiley emojis

+
    +
  1. ๐Ÿ˜€
    2. +
  2. ๐Ÿ˜ƒ
    3. +
  3. ๐Ÿ˜„
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  4. ๐Ÿ˜
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  5. ๐Ÿ˜†
    6. +
  6. ๐Ÿ˜…
    7. +
  7. ๐Ÿ˜‚
    8. +
  8. ๐Ÿคฃ
    9. +
  9. ๐Ÿฅฒ
    10. +
  10. โ˜บ๏ธ
    11. +
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    12. +
  12. ๐Ÿ˜‡
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    14. +
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    15. +
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    52. +
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    53. +
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    54. +
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    55. +
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    56. +
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    60. +
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    61. +
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    62. +
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    63. +
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    64. +
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    65. +
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    66. +
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    67. +
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    68. +
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    69. +
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    70. +
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    71. +
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    72. +
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    73. +
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    74. +
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    76. +
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    78. +
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    79. +
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    80. +
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    81. +
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    82. +
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    83. +
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    84. +
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    85. +
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    86. +
  86. ๐Ÿคฎ
    87. +
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    88. +
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    89. +
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    90. +
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    92. +
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    93. +
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    94. +
  94. ๐Ÿ‘ฟ
    95. +
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    96. +
  96. ๐Ÿ‘บ
    97. +
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    98. +
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    99. +
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    100. +
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    101. +
  101. โ˜ ๏ธ
    102. +
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    103. +
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    104. +
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    105. +
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    106. +
  106. ๐Ÿ˜บ
    107. +
  107. ๐Ÿ˜ธ
    108. +
  108. ๐Ÿ˜น
    109. +
  109. ๐Ÿ˜ป
    110. +
  110. ๐Ÿ˜ผ
    111. +
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    112. +
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    113. +
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    114. +
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    115. +
+
+
+

Translation Section

+

This is the final section you will see before the sections repeat

+

+ English: This is a text block translated from English to another + language in Google Translate. +

+

+ Korean: ์ด๊ฒƒ์€ Google ๋ฒˆ์—ญ์—์„œ ์˜์–ด์—์„œ ๋‹ค๋ฅธ ์–ธ์–ด๋กœ ๋ฒˆ์—ญ๋œ ํ…์ŠคํŠธ + ๋ธ”๋ก์ž…๋‹ˆ๋‹ค. +

+

+ Hindi: เคฏเคน Google เค…เคจเฅเคตเคพเคฆ เคฎเฅ‡เค‚ เค…เค‚เค—เฅเคฐเฅ‡เคœเคผเฅ€ เคธเฅ‡ เคฆเฅ‚เคธเคฐเฅ€ เคญเคพเคทเคพ เคฎเฅ‡เค‚ เค…เคจเฅเคตเคพเคฆเคฟเคค + เคŸเฅ‡เค•เฅเคธเฅเคŸ เคฌเฅเคฒเฅ‰เค• เคนเฅˆเฅค +

+

+ Lithuanian: Tai teksto blokas, iลกverstas iลก anglลณ kalbos ฤฏ kitฤ… + โ€žGoogleโ€œ vertฤ—jo kalbฤ…. +

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+ + we're deep in some nested divs here, not that you can tell + visually + +
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+
+
+ ); +} diff --git a/fixtures/fizz/src/Html.js b/fixtures/fizz/src/Html.js new file mode 100644 index 000000000000..e834f84bac87 --- /dev/null +++ b/fixtures/fizz/src/Html.js @@ -0,0 +1,34 @@ +/** + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + * + */ + +export default function Html({assets, children, title}) { + return ( + + + + + + + {title} + + +