Chromium Code Reviews| Index: tools/testing/perf_testing/smoketest/BenchmarkBase.dart |
| =================================================================== |
| --- tools/testing/perf_testing/smoketest/BenchmarkBase.dart (revision 3170) |
| +++ tools/testing/perf_testing/smoketest/BenchmarkBase.dart (working copy) |
| @@ -1,202 +0,0 @@ |
| -// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| -// for details. All rights reserved. Use of this source code is governed by a |
| -// BSD-style license that can be found in the LICENSE file. |
| - |
| -/** Accessors for our Singleton variables. */ |
| -BenchmarkSuite get BENCHMARK_SUITE() { |
| - if (BenchmarkSuite._ONLY == null) { |
| - BenchmarkSuite._ONLY = new BenchmarkSuite._internal(); |
| - } |
| - return BenchmarkSuite._ONLY; |
| -} |
| - |
| -BenchmarkView get BENCHMARK_VIEW() { |
| - if (BenchmarkView._ONLY == null) { |
| - BenchmarkView._ONLY = new BenchmarkView._internal(); |
| - } |
| - return BenchmarkView._ONLY; |
| -} |
| - |
| -/** The superclass from which all benchmarks inherit from. */ |
| -class BenchmarkBase { |
| - /** Benchmark name. */ |
| - final String name; |
| - |
| - const BenchmarkBase(String name) : this.name = name; |
| - |
| - /** |
| - * The benchmark code. |
| - * This function is not used, if both [warmup] and [exercise] are overwritten. |
| - */ |
| - void run() { } |
| - |
| - /** Runs a short version of the benchmark. By default invokes [run] once. */ |
| - void warmup() { |
| - run(); |
| - } |
| - |
| - /** Exercices the benchmark. By default invokes [run] 10 times. */ |
| - void exercise() { |
| - for (int i = 0; i < 10; i++) { |
| - run(); |
| - } |
| - } |
| - |
| - /** Not measured setup code executed prior to the benchmark runs. */ |
| - void setup() { } |
| - |
| - /** Not measures teardown code executed after the benchark runs. */ |
| - void teardown() { } |
| - |
| - /** |
| - * Measures the score for this benchmark by executing it repeately until |
| - * time minimum has been reached. |
| - */ |
| - static double measureFor(Function f, int timeMinimum) { |
| - int time = 0; |
| - int iter = 0; |
| - Stopwatch watch = new Stopwatch(); |
| - watch.start(); |
| - int elapsed = 0; |
| - while (elapsed < timeMinimum || iter < 32) { |
| - f(); |
| - elapsed = watch.elapsedInMs(); |
| - iter++; |
| - } |
| - return (1000.0 * iter) / elapsed; |
| - } |
| - |
| - /** |
| - * Measures the score for the benchmark and returns it. |
| - * We measure iterations / sec (so bigger = better!). |
| - */ |
| - double measure() { |
| - setup(); |
| - // Warmup for at least 1000ms. Discard result. |
| - measureFor(() { this.warmup(); }, 1000); |
| - // Run the benchmark for at least 1000ms. |
| - double result = measureFor(() { this.exercise(); }, 1000); |
| - teardown(); |
| - return result; |
| - } |
| - |
| - void report() { |
| - num score = measure(); |
| - Map<String, int> normalizingDict = {'Smoketest': 100}; |
| - window.console.log(name + " " + score.toString()); |
| - score = score / normalizingDict[name]; |
| - BENCHMARK_SUITE.updateIndividualScore(name, score); |
| - } |
| -} |
| - |
| -/** The controller class that runs all of the benchmarks. */ |
| -class BenchmarkSuite { |
| - /** The set of benchmarks that have yet to run. */ |
| - List<Function> benchmarks; |
| - |
| - /** |
| - * The set of scores from the benchmarks that have already run. (Used for |
| - * calculating the Geometric mean). |
| - */ |
| - List<num> scores; |
| - |
| - /** The total number of benchmarks we will be running. */ |
| - int totalBenchmarks; |
| - |
| - /** Singleton pattern: There's only one BenchmarkSuite. */ |
| - static BenchmarkSuite _ONLY = null; |
| - |
| - BenchmarkSuite._internal() { |
| - scores = []; |
| - benchmarks = [() => Smoketest.main()]; |
| - totalBenchmarks = benchmarks.length; |
| - } |
| - |
| - /** Run all of the benchmarks that we have in our benchmarks list. */ |
| - runBenchmarks() { |
| - runBenchmarksHelper(benchmarks); |
| - } |
| - |
| - /** |
| - * Run the remaining benchmarks in our list. We chain the calls providing |
| - * little breaks for the main page to gain control, so we don't force the |
| - * entire page to hang the whole time. |
| - */ |
| - runBenchmarksHelper(List<Function> remainingBenchmarks) { |
| - // Remove the last benchmark, and run it. |
| - var benchmark = remainingBenchmarks.removeLast(); |
| - benchmark(); |
| - if (remainingBenchmarks.length > 0) { |
| - /* Provide small breaks between each benchmark, so that the browser |
| - doesn't get unhappy about long running scripts, and so the user |
| - can regain control of the UI to kill the page as needed. */ |
| - window.setTimeout(() => runBenchmarksHelper(remainingBenchmarks), 25); |
| - } else if (remainingBenchmarks.length == 0) { |
| - // We've run all of the benchmarks. Update the page with the score. |
| - BENCHMARK_VIEW.setScore(geometricMean(scores)); |
| - } |
| - } |
| - |
| - /** Store the results of a single benchmark run. */ |
| - updateIndividualScore(String name, num score) { |
| - scores.add(score); |
| - BENCHMARK_VIEW.incrementProgress(name, score, totalBenchmarks); |
| - } |
| - |
| - /** Computes the geometric mean of a set of numbers. */ |
| - geometricMean(numbers) { |
| - num log = 0; |
| - for (num n in numbers) { |
| - log += Math.log(n); |
| - } |
| - return Math.pow(Math.E, log / numbers.length); |
| - } |
| -} |
| - |
| -/** Controls how results are displayed to the user, by updating the HTML. */ |
| -class BenchmarkView { |
| - |
| - /** The number of benchmarks that have finished executing. */ |
| - int numCompleted = 0; |
| - |
| - /** Singleton pattern: There's only one BenchmarkSuite. */ |
| - static BenchmarkView _ONLY = null; |
| - |
| - BenchmarkView._internal(); |
| - |
| - /** Update the page HTML to show the calculated score. */ |
| - setScore(num score) { |
| - String newScore = formatScore(score * 100.0); |
| - Element status = document.query("#status"); |
| - status.innerHTML = "Score: $newScore <br>"; |
|
Emily Fortuna
2012/01/11 22:15:12
This is changed. (see line 170 in the new version
|
| - } |
| - |
| - /** |
| - * Update the page HTML to show how much progress we've made through the |
| - * benchmarks. |
| - */ |
| - incrementProgress(String name, num score, num totalBenchmarks) { |
| - String newScore = formatScore(score * 100.0); |
| - Element results = document.query("#results"); |
| - results.innerHTML += "$name: $newScore <br>"; |
| - |
| - Element status = document.query("#status"); |
| - numCompleted++; |
| - // Slightly incorrect (truncating) percentage, but this is just to show |
| - // the user we're making progress. |
| - num percentage = 100 * numCompleted ~/ totalBenchmarks; |
| - status.innerHTML = "Running: $percentage% completed."; |
| - } |
| - |
| - /** |
| - * Rounds the score to have at least three significant digits (hopefully) |
| - * helping readability of the scores. |
| - */ |
| - String formatScore(num value) { |
| - if (value > 100) { |
| - return value.toStringAsFixed(0); |
| - } else { |
| - return value.toStringAsFixed(2); |
| - } |
| - } |
| -} |