third_party/WebKit/PerformanceTests/inspector/performance-test.js

   1 var initialize_TimeTracker = function() {
   2
   3 InspectorTest.runPerformanceTest = function(perfTest, executeTime, callback)
   4 {
   5     var Timer = function(test, callback)
   6     {
   7         this._callback = callback;
   8         this._test = test;
   9         this._times = {};
  10         this._sizes = {};
  11         this._testStartTime = new Date();
  12         this._heapSizeDeltas = [];
  13         this._jsHeapSize = this._getJSHeapSize();
  14     }
  15
  16     Timer.prototype = {
  17         start: function(name)
  18         {
  19             return {name: name, startTime: new Date()};
  20         },
  21
  22         finish: function(cookie)
  23         {
  24             var endTime = new Date();
  25             if (!this._times[cookie.name])
  26                 this._times[cookie.name] = [];
  27             this._times[cookie.name].push(endTime - cookie.startTime);
  28         },
  29
  30         reportSize: function(name, size)
  31         {
  32             if (!this._sizes[name])
  33                 this._sizes[name] = [];
  34             this._sizes[name].push(size);
  35         },
  36
  37         _getJSHeapSize: function()
  38         {
  39             if (window.gc) {
  40                 window.gc();
  41                 window.gc();
  42             }
  43             return console.memory.usedJSHeapSize;
  44         },
  45
  46         done: function(groupName)
  47         {
  48             var newJSHeapSize = this._getJSHeapSize();
  49             this._heapSizeDeltas.push(newJSHeapSize - this._jsHeapSize);
  50             this._jsHeapSize = newJSHeapSize;
  51
  52             var time = new Date();
  53             if (time - this._testStartTime < executeTime)
  54                 this._runTest();
  55             else {
  56                 if (this._complete)
  57                     return;
  58                 this._complete = true;
  59
  60                 this._dump(groupName);
  61                 if (this._callback)
  62                     this._callback();
  63                 else
  64                     InspectorTest.completeTest();
  65             }
  66         },
  67
  68         _runTest: function()
  69         {
  70             if (this._guard) {
  71                 setTimeout(this._runTest.bind(this), 0);
  72                 return;
  73             }
  74
  75             this._guard = true;
  76             var safeTest = InspectorTest.safeWrap(this._test);
  77             safeTest(this);
  78             this._guard = false;
  79         },
  80
  81         _dump: function(groupName)
  82         {
  83             for (var testName in this._times)
  84                 InspectorTest.dumpTestStats(groupName, testName, this._times[testName], "ms");
  85
  86             for (var testName in this._sizes)
  87                 InspectorTest.dumpTestStats(groupName, testName, this._sizes[testName], "kB", 1024);
  88
  89             var url = WebInspector.inspectedPageURL;
  90             var regExp = /([^\/]+)\.html/;
  91             var matches = regExp.exec(url);
  92             InspectorTest.dumpTestStats("heap-delta", matches[1], this._heapSizeDeltas, "kB", 1024);
  93         },
  94     }
  95
  96     InspectorTest.timer = new Timer(perfTest, callback);
  97     InspectorTest.timer._runTest();
  98 }
  99
 100 InspectorTest.measureFunction = function(object, functionName)
 101 {
 102     function measure() {
 103         var timer = InspectorTest.timer;
 104         var cookie;
 105         if (timer)
 106             cookie = timer.start(functionName);
 107         var result = func.apply(this, arguments);
 108
 109         if (timer)
 110             timer.finish(cookie);
 111         return result;
 112     }
 113     var func = object[functionName];
 114     object[functionName] = measure;
 115 }
 116
 117 InspectorTest.mark = function(markerName)
 118 {
 119     var timer = InspectorTest.timer;
 120     if (!timer)
 121         return;
 122
 123     if (InspectorTest.lastMarkCookie)
 124         timer.finish(InspectorTest.lastMarkCookie);
 125
 126     InspectorTest.lastMarkCookie = markerName ? timer.start(markerName) : null;
 127 }
 128
 129 InspectorTest.dumpTestStats = function(groupName, testName, samples, units, divider)
 130 {
 131     divider = divider || 1;
 132     var stripNResults = Math.floor(samples.length / 10);
 133     samples.sort(function(a, b) { return a - b; });
 134     var sum = 0;
 135     for (var i = stripNResults; i < samples.length - stripNResults; ++i)
 136         sum += samples[i];
 137     InspectorTest.addResult("RESULT " + groupName + ': ' + testName + "= " + Math.floor(sum / (samples.length - stripNResults * 2) / divider) + " " + units);
 138 }
 139
 140 InspectorTest.addBackendResponseSniffer = function(object, methodName, override, opt_sticky)
 141 {
 142     var originalMethod = InspectorTest.override(object, methodName, backendCall, opt_sticky);
 143     function backendCall()
 144     {
 145         var args = Array.prototype.slice.call(arguments);
 146         var callback = (args.length && typeof args[args.length - 1] === "function") ? args.pop() : 0;
 147         args.push(function() {
 148             callback.apply(null, arguments);
 149             override.apply(null, arguments);
 150         });
 151         originalMethod.apply(object, args);
 152     }
 153 }
 154
 155 }