Chromium Code Reviews Chromium Code Reviews
Issue 554833003:
Add a manual test of the speed of parsing a giant alerts file. (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master| OLD | NEW |
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| (Empty) | |
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <script src="../../../bower_components/platform/platform.js"></script> | |
| 5 <link rel="import" href="../../../bower_components/polymer/polymer.html"> | |
| 6 <link rel="import" href="../../ct-commit-log-mock.html"> | |
| 7 <link rel="import" href="../../ct-failures.html"> | |
| 8 </head> | |
| 9 <body> | |
| 10 <label><input type="checkbox" id="collect" checked> Collect timing</label> (this checkbox takes a long time to register clicks.) | |
| 11 <p>Times in ms: | |
| 12 <ul> | |
| 13 <template id="report" repeat="{{results}}"> | |
| 14 <li>{{time}}</li> | |
| 15 </template> | |
| 16 </ul> | |
| 17 <script> | |
| 18 (function() { | |
| 19 'use strict'; | |
| 20 | |
| 21 var model = {results: []}; | |
| 22 document.querySelector('#report').model = model; | |
| 23 | |
| 24 var analyzer = new CTFailures(CTCommitLogMock()); | |
| 25 var big_alerts = net.json('big-alerts.json'); | |
| 26 net.json = function(url) { | |
| 27 if (url === 'http://sheriff-o-matic.appspot.com/alerts') { | |
| 28 return big_alerts; | |
| 29 } else if (url === 'http://trooper-o-matic.appspot.com/alerts') { | |
| 30 return Promise.resolve({}); | |
| 31 } else { | |
| 32 return Promise.reject(new Error('Unexpected URL: ' + url)); | |
| 33 } | |
| 34 }; | |
| 35 | |
| 36 function requestAnimationFramePromise() { | |
| 37 return new Promise(function(resolve, reject) { | |
| 38 requestAnimationFrame(resolve); | |
| 39 }); | |
| 40 } | |
| 41 | |
| 42 function waitForCollecting() { | |
| 43 var checkbox = document.querySelector('#collect'); | |
| 44 if (checkbox.checked) { | |
| 45 return Promise.resolve(); | |
| 46 } else { | |
| 47 return new Promise(function(resolve, reject) { | |
| 48 function resumeCollecting(e) { | |
| 49 if (checkbox.checked) { | |
| 50 checkbox.removeEventListener(resumeCollecting); | |
| 51 resolve(); | |
| 52 } | |
| 53 } | |
| 54 checkbox.addEventListener('change', resumeCollecting); | |
| 55 }); | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 // A Promise version of "while(true) iteration()". | |
| 60 function forever(iteration) { | |
| 61 function loop() { | |
| 62 iteration().then(loop, function(e) { console.error(e, e.stack); }); | |
|
Jeffrey Yasskin
2014/09/08 22:43:52
Now with more debuggability.
| |
| 63 } | |
| 64 loop(); | |
| 65 } | |
| 66 | |
| 67 big_alerts.then(function() { | |
| 68 forever(function() { | |
| 69 var start = window.performance.now(); | |
| 70 return analyzer.update().then(function() { | |
| 71 var end = window.performance.now(); | |
| 72 model.results.push({time: end - start}); | |
| 73 // Let the browser paint the result, and stop timing when the tab is hidd en | |
| 74 // or the checkbox is unchecked. | |
| 75 return waitForCollecting().then(requestAnimationFramePromise); | |
| 76 }) | |
| 77 }); | |
| 78 }); | |
| 79 | |
| 80 })(); | |
| 81 </script> | |
| 82 </body> | |
| 83 </html> | |
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