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- // Copyright 2018 The Chromium Authors. All rights reserved.
- // 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();
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