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Mapbox GL JS Puppeteer benchmark
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| <!doctype html> | |
| <meta charset="utf-8"> | |
| <title>Benchmark</title> | |
| <body></body> | |
| <style>html, body, #map { height: 100%; margin: 0; } </style> | |
| <div id="map"></div> | |
| <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.40.0/mapbox-gl.js'></script> | |
| <!-- <script src="mapbox-gl.js"></script> --> | |
| <script> | |
| console.log(mapboxgl.version); | |
| mapboxgl.accessToken = 'pk.eyJ1IjoibW91cm5lciIsImEiOiJWWnRiWG1VIn0.j6eccFHpE3Q04XPLI7JxbA'; | |
| var map = new mapboxgl.Map({ | |
| container: document.getElementById('map'), | |
| style: 'mapbox://styles/mapbox/streets-v9' | |
| }); | |
| var from = { | |
| center: [-77.01866, 38.888], | |
| zoom: 4 | |
| }; | |
| var to = { | |
| center: [-77.01866, 38.888], | |
| zoom: 18, | |
| easing: (t) => t, | |
| duration: 20000 | |
| }; | |
| map.jumpTo(from); | |
| map.on('load', function () { | |
| console.log('warmup'); | |
| map.flyTo(to).once('moveend', function () { | |
| console.log('start'); | |
| setTimeout(function () { | |
| map.jumpTo(from); | |
| map.flyTo(to).once('moveend', function () { console.log('end'); }); | |
| }, 1000); | |
| }); | |
| }); | |
| </script> |
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| const puppeteer = require('puppeteer'); | |
| const fs = require('fs'); | |
| (async () => { | |
| const browser = await puppeteer.launch({ | |
| headless: false, | |
| args: [ | |
| '--headless' | |
| ] | |
| }); | |
| const page = await browser.newPage(); | |
| page.setViewport({width: 1280, height: 720, deviceScaleFactor: 2}); | |
| page.on('console', async (msg) => { | |
| console.log(msg); | |
| if (msg === 'start') { | |
| page.tracing.start({path: 'trace.json'}); | |
| } | |
| if (msg === 'end') { | |
| await page.tracing.stop(); | |
| await browser.close(); | |
| const traces = JSON.parse(fs.readFileSync('./trace.json')) | |
| .traceEvents.filter(t => t.name === 'FireAnimationFrame'); | |
| const durations = []; | |
| for (let i = 0; i < traces.length; i++) { | |
| let d = traces[i].dur / 1000; | |
| if (d > 16) durations.push(d); | |
| } | |
| console.log('num: ' + durations.length); | |
| console.log('percent: ' + (100 * durations.length / traces.length).toFixed(2) + '%'); | |
| console.log('total: ' + durations.reduce((sum, a) => sum + a, 0)); | |
| } | |
| }); | |
| await page.goto('file://' + __dirname + '/index.html', {waitUntil: 'networkidle'}); | |
| })(); |
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