| // Copyright 2018 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // To benchmark a specific version of Chrome set the CHROME_PATH environment |
| // variable, e.g.: |
| // $ CHROME_PATH=~/chromium/src/out/Release/chrome node benchmark-octane.js |
| |
| const puppeteer = require('puppeteer'); |
| |
| async function runOctane(samplingRate) { |
| const args = ['--enable-devtools-experiments']; |
| if (samplingRate) |
| args.push(`--memlog=all`, `--memlog-sampling-rate=${samplingRate}`); |
| while (true) { |
| let browser; |
| try { |
| browser = await puppeteer.launch({ |
| executablePath: process.env.CHROME_PATH, args, headless: true}); |
| const page = await browser.newPage(); |
| await page.goto('https://chromium.github.io/octane/'); |
| await page.waitForSelector('#run-octane'); // Just in case. |
| await page.click('#run-octane'); |
| |
| const scoreDiv = await page.waitForSelector('#main-banner:only-child', |
| {timeout: 120000}); |
| const scoreText = await page.evaluate(e => e.innerText, scoreDiv); |
| const match = /Score:\s*(\d+)/.exec(scoreText); |
| if (match.length < 2) |
| continue; |
| return parseInt(match[1]); |
| } finally { |
| if (browser) |
| await browser.close(); |
| } |
| } |
| } |
| |
| async function makeRuns(rates) { |
| const scores = []; |
| for (const rate of rates) |
| scores.push(await runOctane(rate)); |
| console.log(scores.join('\t')); |
| } |
| |
| async function main() { |
| console.log(`Using ${process.env.CHROME_PATH || puppeteer.executablePath()}`); |
| const rates = [0]; |
| for (let rate = 8; rate <= 2048; rate *= 2) |
| rates.push(rate); |
| console.log('Rates [KB]:'); |
| console.log(rates.join('\t')); |
| console.log('='.repeat(rates.length * 8)); |
| for (let i = 0; i < 100; ++i) |
| await makeRuns(rates); |
| } |
| |
| main(); |