| 1 | 'use strict'; |
| 2 | |
| 3 | require('@babel/register')({ |
| 4 | presets: [['@babel/preset-react', {runtime: 'automatic'}]], |
| 5 | plugins: ['@babel/plugin-transform-modules-commonjs'], |
| 6 | only: [/\/src\//], |
| 7 | }); |
| 8 | |
| 9 | const path = require('path'); |
| 10 | const fs = require('fs'); |
| 11 | const webpack = require('webpack'); |
| 12 | const inspector = require('node:inspector'); |
| 13 | |
| 14 | const {clientManifest, ssrManifest} = require('./webpack-mock'); |
| 15 | |
| 16 | const PROFILE_MODE = process.argv.includes('--profile'); |
| 17 | const CONCURRENT_MODE = process.argv.includes('--concurrent'); |
| 18 | const INJECT = !process.argv.includes('--no-injection'); |
| 19 | const JSON_OUT = (function () { |
| 20 | const arg = process.argv.find(function (a) { |
| 21 | return a.startsWith('--json-out='); |
| 22 | }); |
| 23 | return arg ? arg.slice('--json-out='.length) : null; |
| 24 | })(); |
| 25 | const jsonResults = []; |
| 26 | function writeJsonOut(mode) { |
| 27 | if (!JSON_OUT) return; |
| 28 | fs.writeFileSync(JSON_OUT, JSON.stringify({mode, results: jsonResults})); |
| 29 | } |
| 30 | |
| 31 | // --------------------------------------------------------------------------- |
| 32 | // Build |
| 33 | // --------------------------------------------------------------------------- |
| 34 | |
| 35 | function build() { |
| 36 | const config = require('./webpack.config'); |
| 37 | return new Promise(function (resolve, reject) { |
| 38 | webpack(config, function (err, stats) { |
| 39 | if (err) { |
| 40 | reject(err); |
| 41 | return; |
| 42 | } |
| 43 | if (stats.hasErrors()) { |
| 44 | reject(new Error(stats.toString({errors: true}))); |
| 45 | return; |
| 46 | } |
| 47 | console.log( |
| 48 | stats.toString({colors: true, modules: false, entrypoints: false}) |
| 49 | ); |
| 50 | resolve(); |
| 51 | }); |
| 52 | }); |
| 53 | } |
| 54 | |
| 55 | // --------------------------------------------------------------------------- |
| 56 | // Render helpers |
| 57 | // --------------------------------------------------------------------------- |
| 58 | |
| 59 | const { |
| 60 | renderFizzNode: renderFizzNodeStream, |
| 61 | renderFizzEdge: renderFizzEdgeStream, |
| 62 | renderFlightFizzNode: renderFlightFizzNodeStream, |
| 63 | renderFlightFizzEdge: renderFlightFizzEdgeStream, |
| 64 | nodeStreamToString, |
| 65 | webStreamToString, |
| 66 | } = require('./render-helpers'); |
| 67 | const {printGrid} = require('./print-helpers'); |
| 68 | |
| 69 | function renderFizzNode(AppComponent, itemCount) { |
| 70 | return nodeStreamToString(renderFizzNodeStream(AppComponent, itemCount)); |
| 71 | } |
| 72 | |
| 73 | function renderFizzEdge(AppComponent, itemCount) { |
| 74 | return renderFizzEdgeStream(AppComponent, itemCount).then(webStreamToString); |
| 75 | } |
| 76 | |
| 77 | function renderFlightFizzNode(renderRSCNode, AppComponent, itemCount) { |
| 78 | return nodeStreamToString( |
| 79 | renderFlightFizzNodeStream( |
| 80 | renderRSCNode, |
| 81 | AppComponent, |
| 82 | itemCount, |
| 83 | clientManifest, |
| 84 | ssrManifest, |
| 85 | {inject: INJECT} |
| 86 | ) |
| 87 | ); |
| 88 | } |
| 89 | |
| 90 | function renderFlightFizzEdge(renderRSCEdge, AppComponent, itemCount) { |
| 91 | return renderFlightFizzEdgeStream( |
| 92 | renderRSCEdge, |
| 93 | AppComponent, |
| 94 | itemCount, |
| 95 | clientManifest, |
| 96 | ssrManifest, |
| 97 | {inject: INJECT} |
| 98 | ).then(webStreamToString); |
| 99 | } |
| 100 | |
| 101 | // --------------------------------------------------------------------------- |
| 102 | // Benchmarking |
| 103 | // --------------------------------------------------------------------------- |
| 104 | |
| 105 | const canGC = typeof globalThis.gc === 'function'; |
| 106 | |
| 107 | // Yield to the event loop's check phase between renders. React schedules a |
| 108 | // setImmediate per request, but a fully in-process render completes entirely |
| 109 | // in microtasks/nextTicks, so a tight benchmark loop never lets those |
| 110 | // immediates run. They then pile up in Node's immediate queue, each one |
| 111 | // retaining its (otherwise finished) request graph, which inflates any memory |
| 112 | // measurement. A real server yields to the event loop on every request, so |
| 113 | // draining between iterations is both correct and more representative. |
| 114 | function tick() { |
| 115 | return new Promise(resolve => setImmediate(resolve)); |
| 116 | } |
| 117 | |
| 118 | async function settledHeapUsed() { |
| 119 | await tick(); |
| 120 | if (canGC) globalThis.gc(); |
| 121 | return process.memoryUsage().heapUsed; |
| 122 | } |
| 123 | |
| 124 | async function runBenchmark(name, fn, iterations, warmup) { |
| 125 | if (canGC) globalThis.gc(); |
| 126 | const heapBefore = await settledHeapUsed(); |
| 127 | |
| 128 | // Warmup |
| 129 | for (let i = 0; i < warmup; i++) { |
| 130 | await fn(); |
| 131 | await tick(); |
| 132 | } |
| 133 | |
| 134 | // Collect GC pauses during timed iterations. |
| 135 | let gcCount = 0; |
| 136 | let gcTotalMs = 0; |
| 137 | const gcObs = new PerformanceObserver(list => { |
| 138 | for (const entry of list.getEntries()) { |
| 139 | gcCount++; |
| 140 | gcTotalMs += entry.duration; |
| 141 | } |
| 142 | }); |
| 143 | gcObs.observe({entryTypes: ['gc']}); |
| 144 | |
| 145 | // Timed iterations. The tick between iterations is excluded from the |
| 146 | // timed window. |
| 147 | const times = []; |
| 148 | for (let i = 0; i < iterations; i++) { |
| 149 | const start = performance.now(); |
| 150 | await fn(); |
| 151 | times.push(performance.now() - start); |
| 152 | await tick(); |
| 153 | } |
| 154 | gcObs.disconnect(); |
| 155 | const heapAfter = await settledHeapUsed(); |
| 156 | |
| 157 | // Trim top/bottom 5% to remove outliers |
| 158 | const sorted = [...times].sort((a, b) => a - b); |
| 159 | const trimCount = Math.floor(sorted.length * 0.05); |
| 160 | const trimmed = sorted.slice(trimCount, sorted.length - trimCount); |
| 161 | |
| 162 | const mean = trimmed.reduce((s, t) => s + t, 0) / trimmed.length; |
| 163 | const median = sorted[Math.floor(sorted.length / 2)]; |
| 164 | const stddev = Math.sqrt( |
| 165 | trimmed.reduce((s, t) => s + (t - mean) ** 2, 0) / trimmed.length |
| 166 | ); |
| 167 | const p95 = sorted[Math.floor(sorted.length * 0.95)]; |
| 168 | const min = sorted[0]; |
| 169 | const max = sorted[sorted.length - 1]; |
| 170 | |
| 171 | return { |
| 172 | name, |
| 173 | mean, |
| 174 | median, |
| 175 | stddev, |
| 176 | p95, |
| 177 | min, |
| 178 | max, |
| 179 | iterations, |
| 180 | gcCount, |
| 181 | gcTotalMs, |
| 182 | heapBefore, |
| 183 | heapAfter, |
| 184 | }; |
| 185 | } |
| 186 | |
| 187 | function printResult(result) { |
| 188 | jsonResults.push(result); |
| 189 | console.log(' %s:', result.name); |
| 190 | console.log(' Mean: %s ms', result.mean.toFixed(2)); |
| 191 | console.log(' Median: %s ms', result.median.toFixed(2)); |
| 192 | console.log(' Stddev: %s ms', result.stddev.toFixed(2)); |
| 193 | console.log(' P95: %s ms', result.p95.toFixed(2)); |
| 194 | console.log(' Min: %s ms', result.min.toFixed(2)); |
| 195 | console.log(' Max: %s ms', result.max.toFixed(2)); |
| 196 | console.log( |
| 197 | ' GC: %d pauses, %s ms total (%s ms/iter)', |
| 198 | result.gcCount, |
| 199 | result.gcTotalMs.toFixed(1), |
| 200 | (result.gcTotalMs / result.iterations).toFixed(2) |
| 201 | ); |
| 202 | printHeap(result); |
| 203 | } |
| 204 | |
| 205 | function printHeap(result) { |
| 206 | if (!canGC) return; |
| 207 | const mb = b => (b / 1048576).toFixed(1); |
| 208 | const delta = result.heapAfter - result.heapBefore; |
| 209 | console.log( |
| 210 | ' Heap: %s MB retained after run (%s%s MB vs before)', |
| 211 | mb(result.heapAfter), |
| 212 | delta >= 0 ? '+' : '', |
| 213 | mb(delta) |
| 214 | ); |
| 215 | } |
| 216 | |
| 217 | async function runConcurrent(name, fn, total, concurrency, warmup) { |
| 218 | if (canGC) globalThis.gc(); |
| 219 | const heapBefore = await settledHeapUsed(); |
| 220 | |
| 221 | for (let i = 0; i < warmup; i++) { |
| 222 | await fn(); |
| 223 | await tick(); |
| 224 | } |
| 225 | |
| 226 | let gcCount = 0; |
| 227 | let gcTotalMs = 0; |
| 228 | const gcObs = new PerformanceObserver(list => { |
| 229 | for (const entry of list.getEntries()) { |
| 230 | gcCount++; |
| 231 | gcTotalMs += entry.duration; |
| 232 | } |
| 233 | }); |
| 234 | gcObs.observe({entryTypes: ['gc']}); |
| 235 | |
| 236 | const latencies = new Array(total); |
| 237 | let completed = 0; |
| 238 | let launched = 0; |
| 239 | |
| 240 | const start = performance.now(); |
| 241 | await new Promise(resolve => { |
| 242 | function launch() { |
| 243 | while (launched < total && launched - completed < concurrency) { |
| 244 | const idx = launched++; |
| 245 | const t0 = performance.now(); |
| 246 | fn() |
| 247 | .then(() => { |
| 248 | latencies[idx] = performance.now() - t0; |
| 249 | // Drain immediates before freeing the slot (see tick()). |
| 250 | return tick(); |
| 251 | }) |
| 252 | .then(() => { |
| 253 | completed++; |
| 254 | if (completed === total) { |
| 255 | resolve(); |
| 256 | } else { |
| 257 | launch(); |
| 258 | } |
| 259 | }); |
| 260 | } |
| 261 | } |
| 262 | launch(); |
| 263 | }); |
| 264 | const elapsed = performance.now() - start; |
| 265 | gcObs.disconnect(); |
| 266 | const heapAfter = await settledHeapUsed(); |
| 267 | |
| 268 | const sorted = [...latencies].sort((a, b) => a - b); |
| 269 | const mean = sorted.reduce((s, t) => s + t, 0) / sorted.length; |
| 270 | const p95 = sorted[Math.floor(sorted.length * 0.95)]; |
| 271 | |
| 272 | return { |
| 273 | name, |
| 274 | reqPerSec: (total / elapsed) * 1000, |
| 275 | mean, |
| 276 | p95, |
| 277 | total, |
| 278 | concurrency, |
| 279 | gcCount, |
| 280 | gcTotalMs, |
| 281 | heapBefore, |
| 282 | heapAfter, |
| 283 | }; |
| 284 | } |
| 285 | |
| 286 | function printConcurrentResult(result) { |
| 287 | jsonResults.push(result); |
| 288 | console.log(' %s:', result.name); |
| 289 | console.log(' Req/s: %s', result.reqPerSec.toFixed(1)); |
| 290 | console.log(' Mean: %s ms', result.mean.toFixed(2)); |
| 291 | console.log(' P95: %s ms', result.p95.toFixed(2)); |
| 292 | console.log( |
| 293 | ' GC: %d pauses, %s ms total (%s ms/req)', |
| 294 | result.gcCount, |
| 295 | result.gcTotalMs.toFixed(1), |
| 296 | (result.gcTotalMs / result.total).toFixed(2) |
| 297 | ); |
| 298 | printHeap(result); |
| 299 | } |
| 300 | |
| 301 | // --------------------------------------------------------------------------- |
| 302 | // CPU Profiling |
| 303 | // --------------------------------------------------------------------------- |
| 304 | |
| 305 | function startProfiler() { |
| 306 | const session = new inspector.Session(); |
| 307 | session.connect(); |
| 308 | return new Promise(function (resolve, reject) { |
| 309 | session.post('Profiler.enable', function (err) { |
| 310 | if (err) { |
| 311 | reject(err); |
| 312 | return; |
| 313 | } |
| 314 | session.post('Profiler.start', function (err2) { |
| 315 | if (err2) { |
| 316 | reject(err2); |
| 317 | return; |
| 318 | } |
| 319 | resolve(session); |
| 320 | }); |
| 321 | }); |
| 322 | }); |
| 323 | } |
| 324 | |
| 325 | function stopProfiler(session, outputPath) { |
| 326 | return new Promise(function (resolve, reject) { |
| 327 | session.post('Profiler.stop', function (err, {profile}) { |
| 328 | if (err) { |
| 329 | reject(err); |
| 330 | return; |
| 331 | } |
| 332 | fs.mkdirSync(path.dirname(outputPath), {recursive: true}); |
| 333 | fs.writeFileSync(outputPath, JSON.stringify(profile)); |
| 334 | session.post('Profiler.disable'); |
| 335 | session.disconnect(); |
| 336 | resolve(profile); |
| 337 | }); |
| 338 | }); |
| 339 | } |
| 340 | |
| 341 | function printTopFunctions(profile, topN) { |
| 342 | // Aggregate self-time per function from the profile nodes. |
| 343 | const selfTimes = new Map(); |
| 344 | for (const node of profile.nodes) { |
| 345 | const name = node.callFrame.functionName || '(anonymous)'; |
| 346 | const loc = node.callFrame.url |
| 347 | ? node.callFrame.url.replace(/.*\//, '') + ':' + node.callFrame.lineNumber |
| 348 | : '(native)'; |
| 349 | const key = name + ' @ ' + loc; |
| 350 | const hitCount = node.hitCount || 0; |
| 351 | selfTimes.set(key, (selfTimes.get(key) || 0) + hitCount); |
| 352 | } |
| 353 | |
| 354 | const sorted = [...selfTimes.entries()] |
| 355 | .sort((a, b) => b[1] - a[1]) |
| 356 | .slice(0, topN); |
| 357 | |
| 358 | const totalSamples = profile.nodes.reduce((s, n) => s + (n.hitCount || 0), 0); |
| 359 | |
| 360 | console.log(' Top %d functions by self-time:', topN); |
| 361 | for (const [key, hits] of sorted) { |
| 362 | const pct = ((hits / totalSamples) * 100).toFixed(1); |
| 363 | console.log(' %s%% - %s', pct, key); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | async function profileRun(name, fn, warmup, iterations, outputPath) { |
| 368 | // Warmup (unprofiled) |
| 369 | for (let i = 0; i < warmup; i++) { |
| 370 | await fn(); |
| 371 | await tick(); |
| 372 | } |
| 373 | |
| 374 | // Collect GC pauses during the profiled run. |
| 375 | let gcCount = 0; |
| 376 | let gcTotalMs = 0; |
| 377 | const gcObs = new PerformanceObserver(list => { |
| 378 | for (const entry of list.getEntries()) { |
| 379 | gcCount++; |
| 380 | gcTotalMs += entry.duration; |
| 381 | } |
| 382 | }); |
| 383 | gcObs.observe({entryTypes: ['gc']}); |
| 384 | |
| 385 | // Profiled run |
| 386 | const session = await startProfiler(); |
| 387 | for (let i = 0; i < iterations; i++) { |
| 388 | await fn(); |
| 389 | await tick(); |
| 390 | } |
| 391 | const profile = await stopProfiler(session, outputPath); |
| 392 | gcObs.disconnect(); |
| 393 | |
| 394 | console.log(' %s → %s', name, outputPath); |
| 395 | printTopFunctions(profile, 10); |
| 396 | console.log( |
| 397 | ' GC: %d pauses, %s ms total (%s ms/iter)', |
| 398 | gcCount, |
| 399 | gcTotalMs.toFixed(1), |
| 400 | (gcTotalMs / iterations).toFixed(2) |
| 401 | ); |
| 402 | } |
| 403 | |
| 404 | // --------------------------------------------------------------------------- |
| 405 | // Main |
| 406 | // --------------------------------------------------------------------------- |
| 407 | |
| 408 | async function main() { |
| 409 | console.log('Building RSC bundle...\n'); |
| 410 | await build(); |
| 411 | |
| 412 | const { |
| 413 | renderRSCNode, |
| 414 | renderRSCEdge, |
| 415 | App: RSCApp, |
| 416 | AppAsync: RSCAppAsync, |
| 417 | } = require('./build/rsc-bundle.js'); |
| 418 | const App = require('./src/App.js').default; |
| 419 | const AppAsync = require('./src/AppAsync.js').default; |
| 420 | |
| 421 | const ITEM_COUNT = 200; |
| 422 | |
| 423 | const WARMUP = 50; |
| 424 | const ITERATIONS = 1000; |
| 425 | const PROFILE_WARMUP = 50; |
| 426 | const PROFILE_ITERATIONS = 500; |
| 427 | |
| 428 | // --- Verify renders --- |
| 429 | console.log('\n--- Verifying renders ---\n'); |
| 430 | |
| 431 | const fizzNodeHtml = await renderFizzNode(App, ITEM_COUNT); |
| 432 | console.log('Fizz (Node, sync): %d bytes', fizzNodeHtml.length); |
| 433 | |
| 434 | const flightFizzNodeHtml = await renderFlightFizzNode( |
| 435 | renderRSCNode, |
| 436 | RSCApp, |
| 437 | ITEM_COUNT |
| 438 | ); |
| 439 | console.log( |
| 440 | 'Flight + Fizz (Node, sync): %d bytes', |
| 441 | flightFizzNodeHtml.length |
| 442 | ); |
| 443 | |
| 444 | const fizzNodeAsyncHtml = await renderFizzNode(AppAsync, ITEM_COUNT); |
| 445 | console.log('Fizz (Node, async): %d bytes', fizzNodeAsyncHtml.length); |
| 446 | |
| 447 | const flightFizzNodeAsyncHtml = await renderFlightFizzNode( |
| 448 | renderRSCNode, |
| 449 | RSCAppAsync, |
| 450 | ITEM_COUNT |
| 451 | ); |
| 452 | console.log( |
| 453 | 'Flight + Fizz (Node, async):%d bytes', |
| 454 | flightFizzNodeAsyncHtml.length |
| 455 | ); |
| 456 | |
| 457 | const fizzEdgeHtml = await renderFizzEdge(App, ITEM_COUNT); |
| 458 | console.log('Fizz (Edge, sync): %d bytes', fizzEdgeHtml.length); |
| 459 | |
| 460 | const fizzEdgeAsyncHtml = await renderFizzEdge(AppAsync, ITEM_COUNT); |
| 461 | console.log('Fizz (Edge, async): %d bytes', fizzEdgeAsyncHtml.length); |
| 462 | |
| 463 | const flightFizzEdgeHtml = await renderFlightFizzEdge( |
| 464 | renderRSCEdge, |
| 465 | RSCApp, |
| 466 | ITEM_COUNT |
| 467 | ); |
| 468 | console.log( |
| 469 | 'Flight + Fizz (Edge, sync): %d bytes', |
| 470 | flightFizzEdgeHtml.length |
| 471 | ); |
| 472 | |
| 473 | const flightFizzEdgeAsyncHtml = await renderFlightFizzEdge( |
| 474 | renderRSCEdge, |
| 475 | RSCAppAsync, |
| 476 | ITEM_COUNT |
| 477 | ); |
| 478 | console.log( |
| 479 | 'Flight + Fizz (Edge, async):%d bytes', |
| 480 | flightFizzEdgeAsyncHtml.length |
| 481 | ); |
| 482 | |
| 483 | // --- CPU Profiling --- |
| 484 | if (PROFILE_MODE) { |
| 485 | console.log( |
| 486 | '\n--- CPU Profiling (%d warmup, %d iterations) ---\n', |
| 487 | PROFILE_WARMUP, |
| 488 | PROFILE_ITERATIONS |
| 489 | ); |
| 490 | |
| 491 | const profileDir = path.resolve(__dirname, 'build/profiles'); |
| 492 | |
| 493 | await profileRun( |
| 494 | 'Fizz (Node, sync)', |
| 495 | () => renderFizzNode(App, ITEM_COUNT), |
| 496 | PROFILE_WARMUP, |
| 497 | PROFILE_ITERATIONS, |
| 498 | path.join(profileDir, 'fizz-node-sync.cpuprofile') |
| 499 | ); |
| 500 | |
| 501 | await profileRun( |
| 502 | 'Flight + Fizz (Node, sync)', |
| 503 | () => renderFlightFizzNode(renderRSCNode, RSCApp, ITEM_COUNT), |
| 504 | PROFILE_WARMUP, |
| 505 | PROFILE_ITERATIONS, |
| 506 | path.join(profileDir, 'flight-fizz-node-sync.cpuprofile') |
| 507 | ); |
| 508 | |
| 509 | await profileRun( |
| 510 | 'Fizz (Node, async)', |
| 511 | () => renderFizzNode(AppAsync, ITEM_COUNT), |
| 512 | PROFILE_WARMUP, |
| 513 | PROFILE_ITERATIONS, |
| 514 | path.join(profileDir, 'fizz-node-async.cpuprofile') |
| 515 | ); |
| 516 | |
| 517 | await profileRun( |
| 518 | 'Flight + Fizz (Node, async)', |
| 519 | () => renderFlightFizzNode(renderRSCNode, RSCAppAsync, ITEM_COUNT), |
| 520 | PROFILE_WARMUP, |
| 521 | PROFILE_ITERATIONS, |
| 522 | path.join(profileDir, 'flight-fizz-node-async.cpuprofile') |
| 523 | ); |
| 524 | |
| 525 | await profileRun( |
| 526 | 'Fizz (Edge, sync)', |
| 527 | () => renderFizzEdge(App, ITEM_COUNT), |
| 528 | PROFILE_WARMUP, |
| 529 | PROFILE_ITERATIONS, |
| 530 | path.join(profileDir, 'fizz-edge-sync.cpuprofile') |
| 531 | ); |
| 532 | |
| 533 | await profileRun( |
| 534 | 'Flight + Fizz (Edge, sync)', |
| 535 | () => renderFlightFizzEdge(renderRSCEdge, RSCApp, ITEM_COUNT), |
| 536 | PROFILE_WARMUP, |
| 537 | PROFILE_ITERATIONS, |
| 538 | path.join(profileDir, 'flight-fizz-edge-sync.cpuprofile') |
| 539 | ); |
| 540 | |
| 541 | await profileRun( |
| 542 | 'Fizz (Edge, async)', |
| 543 | () => renderFizzEdge(AppAsync, ITEM_COUNT), |
| 544 | PROFILE_WARMUP, |
| 545 | PROFILE_ITERATIONS, |
| 546 | path.join(profileDir, 'fizz-edge-async.cpuprofile') |
| 547 | ); |
| 548 | |
| 549 | await profileRun( |
| 550 | 'Flight + Fizz (Edge, async)', |
| 551 | () => renderFlightFizzEdge(renderRSCEdge, RSCAppAsync, ITEM_COUNT), |
| 552 | PROFILE_WARMUP, |
| 553 | PROFILE_ITERATIONS, |
| 554 | path.join(profileDir, 'flight-fizz-edge-async.cpuprofile') |
| 555 | ); |
| 556 | |
| 557 | console.log( |
| 558 | '\nProfiles saved to build/profiles/. Open in Chrome DevTools or speedscope.app.' |
| 559 | ); |
| 560 | |
| 561 | return; |
| 562 | } |
| 563 | |
| 564 | // --- Concurrent Benchmark --- |
| 565 | if (CONCURRENT_MODE) { |
| 566 | const CONCURRENCY = 50; |
| 567 | const TOTAL = 1000; |
| 568 | const CONC_WARMUP = 20; |
| 569 | |
| 570 | console.log( |
| 571 | '\n--- Concurrent Benchmark (%d warmup, %d concurrency, %d requests, %d items) ---\n', |
| 572 | CONC_WARMUP, |
| 573 | CONCURRENCY, |
| 574 | TOTAL, |
| 575 | ITEM_COUNT |
| 576 | ); |
| 577 | |
| 578 | const fizzNodeSync = await runConcurrent( |
| 579 | 'Fizz (Node, sync)', |
| 580 | () => renderFizzNode(App, ITEM_COUNT), |
| 581 | TOTAL, |
| 582 | CONCURRENCY, |
| 583 | CONC_WARMUP |
| 584 | ); |
| 585 | printConcurrentResult(fizzNodeSync); |
| 586 | |
| 587 | const flightFizzNodeSync = await runConcurrent( |
| 588 | 'Flight + Fizz (Node, sync)', |
| 589 | () => renderFlightFizzNode(renderRSCNode, RSCApp, ITEM_COUNT), |
| 590 | TOTAL, |
| 591 | CONCURRENCY, |
| 592 | CONC_WARMUP |
| 593 | ); |
| 594 | printConcurrentResult(flightFizzNodeSync); |
| 595 | |
| 596 | const fizzNodeAsync = await runConcurrent( |
| 597 | 'Fizz (Node, async)', |
| 598 | () => renderFizzNode(AppAsync, ITEM_COUNT), |
| 599 | TOTAL, |
| 600 | CONCURRENCY, |
| 601 | CONC_WARMUP |
| 602 | ); |
| 603 | printConcurrentResult(fizzNodeAsync); |
| 604 | |
| 605 | const flightFizzNodeAsync = await runConcurrent( |
| 606 | 'Flight + Fizz (Node, async)', |
| 607 | () => renderFlightFizzNode(renderRSCNode, RSCAppAsync, ITEM_COUNT), |
| 608 | TOTAL, |
| 609 | CONCURRENCY, |
| 610 | CONC_WARMUP |
| 611 | ); |
| 612 | printConcurrentResult(flightFizzNodeAsync); |
| 613 | |
| 614 | const fizzEdgeSync = await runConcurrent( |
| 615 | 'Fizz (Edge, sync)', |
| 616 | () => renderFizzEdge(App, ITEM_COUNT), |
| 617 | TOTAL, |
| 618 | CONCURRENCY, |
| 619 | CONC_WARMUP |
| 620 | ); |
| 621 | printConcurrentResult(fizzEdgeSync); |
| 622 | |
| 623 | const flightFizzEdgeSync = await runConcurrent( |
| 624 | 'Flight + Fizz (Edge, sync)', |
| 625 | () => renderFlightFizzEdge(renderRSCEdge, RSCApp, ITEM_COUNT), |
| 626 | TOTAL, |
| 627 | CONCURRENCY, |
| 628 | CONC_WARMUP |
| 629 | ); |
| 630 | printConcurrentResult(flightFizzEdgeSync); |
| 631 | |
| 632 | const fizzEdgeAsync = await runConcurrent( |
| 633 | 'Fizz (Edge, async)', |
| 634 | () => renderFizzEdge(AppAsync, ITEM_COUNT), |
| 635 | TOTAL, |
| 636 | CONCURRENCY, |
| 637 | CONC_WARMUP |
| 638 | ); |
| 639 | printConcurrentResult(fizzEdgeAsync); |
| 640 | |
| 641 | const flightFizzEdgeAsync = await runConcurrent( |
| 642 | 'Flight + Fizz (Edge, async)', |
| 643 | () => renderFlightFizzEdge(renderRSCEdge, RSCAppAsync, ITEM_COUNT), |
| 644 | TOTAL, |
| 645 | CONCURRENCY, |
| 646 | CONC_WARMUP |
| 647 | ); |
| 648 | printConcurrentResult(flightFizzEdgeAsync); |
| 649 | |
| 650 | const rps = r => r.reqPerSec; |
| 651 | |
| 652 | console.log('\n--- Flight overhead ---\n'); |
| 653 | printGrid( |
| 654 | ['Fizz', 'Flight+Fizz'], |
| 655 | [ |
| 656 | ['Node sync', fizzNodeSync, flightFizzNodeSync], |
| 657 | ['Node async', fizzNodeAsync, flightFizzNodeAsync], |
| 658 | ['Edge sync', fizzEdgeSync, flightFizzEdgeSync], |
| 659 | ['Edge async', fizzEdgeAsync, flightFizzEdgeAsync], |
| 660 | ], |
| 661 | rps, |
| 662 | 'req/s', |
| 663 | 'higher is better' |
| 664 | ); |
| 665 | |
| 666 | console.log('\n--- Edge vs Node ---\n'); |
| 667 | printGrid( |
| 668 | ['Node', 'Edge'], |
| 669 | [ |
| 670 | ['Fizz sync', fizzNodeSync, fizzEdgeSync], |
| 671 | ['Fizz async', fizzNodeAsync, fizzEdgeAsync], |
| 672 | ['Flight+Fizz sync', flightFizzNodeSync, flightFizzEdgeSync], |
| 673 | ['Flight+Fizz async', flightFizzNodeAsync, flightFizzEdgeAsync], |
| 674 | ], |
| 675 | rps, |
| 676 | 'req/s', |
| 677 | 'higher is better' |
| 678 | ); |
| 679 | |
| 680 | writeJsonOut('concurrent'); |
| 681 | return; |
| 682 | } |
| 683 | |
| 684 | // --- Benchmark --- |
| 685 | console.log( |
| 686 | '\n--- Benchmark (%d warmup, %d iterations, %d items) ---\n', |
| 687 | WARMUP, |
| 688 | ITERATIONS, |
| 689 | ITEM_COUNT |
| 690 | ); |
| 691 | |
| 692 | const fizzNodeSync = await runBenchmark( |
| 693 | 'Fizz (Node, sync)', |
| 694 | () => renderFizzNode(App, ITEM_COUNT), |
| 695 | ITERATIONS, |
| 696 | WARMUP |
| 697 | ); |
| 698 | printResult(fizzNodeSync); |
| 699 | |
| 700 | const flightFizzNodeSync = await runBenchmark( |
| 701 | 'Flight + Fizz (Node, sync)', |
| 702 | () => renderFlightFizzNode(renderRSCNode, RSCApp, ITEM_COUNT), |
| 703 | ITERATIONS, |
| 704 | WARMUP |
| 705 | ); |
| 706 | printResult(flightFizzNodeSync); |
| 707 | |
| 708 | const fizzNodeAsync = await runBenchmark( |
| 709 | 'Fizz (Node, async)', |
| 710 | () => renderFizzNode(AppAsync, ITEM_COUNT), |
| 711 | ITERATIONS, |
| 712 | WARMUP |
| 713 | ); |
| 714 | printResult(fizzNodeAsync); |
| 715 | |
| 716 | const flightFizzNodeAsync = await runBenchmark( |
| 717 | 'Flight + Fizz (Node, async)', |
| 718 | () => renderFlightFizzNode(renderRSCNode, RSCAppAsync, ITEM_COUNT), |
| 719 | ITERATIONS, |
| 720 | WARMUP |
| 721 | ); |
| 722 | printResult(flightFizzNodeAsync); |
| 723 | |
| 724 | const fizzEdgeSync = await runBenchmark( |
| 725 | 'Fizz (Edge, sync)', |
| 726 | () => renderFizzEdge(App, ITEM_COUNT), |
| 727 | ITERATIONS, |
| 728 | WARMUP |
| 729 | ); |
| 730 | printResult(fizzEdgeSync); |
| 731 | |
| 732 | const flightFizzEdgeSync = await runBenchmark( |
| 733 | 'Flight + Fizz (Edge, sync)', |
| 734 | () => renderFlightFizzEdge(renderRSCEdge, RSCApp, ITEM_COUNT), |
| 735 | ITERATIONS, |
| 736 | WARMUP |
| 737 | ); |
| 738 | printResult(flightFizzEdgeSync); |
| 739 | |
| 740 | const fizzEdgeAsync = await runBenchmark( |
| 741 | 'Fizz (Edge, async)', |
| 742 | () => renderFizzEdge(AppAsync, ITEM_COUNT), |
| 743 | ITERATIONS, |
| 744 | WARMUP |
| 745 | ); |
| 746 | printResult(fizzEdgeAsync); |
| 747 | |
| 748 | const flightFizzEdgeAsync = await runBenchmark( |
| 749 | 'Flight + Fizz (Edge, async)', |
| 750 | () => renderFlightFizzEdge(renderRSCEdge, RSCAppAsync, ITEM_COUNT), |
| 751 | ITERATIONS, |
| 752 | WARMUP |
| 753 | ); |
| 754 | printResult(flightFizzEdgeAsync); |
| 755 | |
| 756 | const median = r => r.median; |
| 757 | |
| 758 | console.log('\n--- Flight overhead ---\n'); |
| 759 | printGrid( |
| 760 | ['Fizz', 'Flight+Fizz'], |
| 761 | [ |
| 762 | ['Node sync', fizzNodeSync, flightFizzNodeSync], |
| 763 | ['Node async', fizzNodeAsync, flightFizzNodeAsync], |
| 764 | ['Edge sync', fizzEdgeSync, flightFizzEdgeSync], |
| 765 | ['Edge async', fizzEdgeAsync, flightFizzEdgeAsync], |
| 766 | ], |
| 767 | median, |
| 768 | 'ms', |
| 769 | 'median, lower is better' |
| 770 | ); |
| 771 | |
| 772 | console.log('\n--- Edge vs Node ---\n'); |
| 773 | printGrid( |
| 774 | ['Node', 'Edge'], |
| 775 | [ |
| 776 | ['Fizz sync', fizzNodeSync, fizzEdgeSync], |
| 777 | ['Fizz async', fizzNodeAsync, fizzEdgeAsync], |
| 778 | ['Flight+Fizz sync', flightFizzNodeSync, flightFizzEdgeSync], |
| 779 | ['Flight+Fizz async', flightFizzNodeAsync, flightFizzEdgeAsync], |
| 780 | ], |
| 781 | median, |
| 782 | 'ms', |
| 783 | 'median, lower is better' |
| 784 | ); |
| 785 | |
| 786 | writeJsonOut(INJECT ? 'inject' : 'bare'); |
| 787 | } |
| 788 | |
| 789 | main().catch(function (err) { |
| 790 | console.error(err); |
| 791 | process.exit(1); |
| 792 | }); |