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Unified Diff: chrome/test/data/v8_benchmark/base.js

Issue 11649054: Remove obsolete v8_benchmark. It was replaced with Octane on the perf bots. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebase Created 7 years, 11 months ago
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Index: chrome/test/data/v8_benchmark/base.js
diff --git a/chrome/test/data/v8_benchmark/base.js b/chrome/test/data/v8_benchmark/base.js
deleted file mode 100644
index ffabf24ddafc91b308c328bcce3b000d3f789870..0000000000000000000000000000000000000000
--- a/chrome/test/data/v8_benchmark/base.js
+++ /dev/null
@@ -1,284 +0,0 @@
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-// Simple framework for running the benchmark suites and
-// computing a score based on the timing measurements.
-
-
-// A benchmark has a name (string) and a function that will be run to
-// do the performance measurement. The optional setup and tearDown
-// arguments are functions that will be invoked before and after
-// running the benchmark, but the running time of these functions will
-// not be accounted for in the benchmark score.
-function Benchmark(name, run, setup, tearDown) {
- this.name = name;
- this.run = run;
- this.Setup = setup ? setup : function() { };
- this.TearDown = tearDown ? tearDown : function() { };
-}
-
-
-// Benchmark results hold the benchmark and the measured time used to
-// run the benchmark. The benchmark score is computed later once a
-// full benchmark suite has run to completion.
-function BenchmarkResult(benchmark, time) {
- this.benchmark = benchmark;
- this.time = time;
-}
-
-
-// Automatically convert results to numbers. Used by the geometric
-// mean computation.
-BenchmarkResult.prototype.valueOf = function() {
- return this.time;
-}
-
-
-// Suites of benchmarks consist of a name and the set of benchmarks in
-// addition to the reference timing that the final score will be based
-// on. This way, all scores are relative to a reference run and higher
-// scores implies better performance.
-function BenchmarkSuite(name, reference, benchmarks) {
- this.name = name;
- this.reference = reference;
- this.benchmarks = benchmarks;
- BenchmarkSuite.suites.push(this);
-}
-
-
-// Keep track of all declared benchmark suites.
-BenchmarkSuite.suites = [];
-
-
-// Scores are not comparable across versions. Bump the version if
-// you're making changes that will affect that scores, e.g. if you add
-// a new benchmark or change an existing one.
-BenchmarkSuite.version = '6';
-
-
-// To make the benchmark results predictable, we replace Math.random
-// with a 100% deterministic alternative.
-Math.random = (function() {
- var seed = 49734321;
- return function() {
- // Robert Jenkins' 32 bit integer hash function.
- seed = ((seed + 0x7ed55d16) + (seed << 12)) & 0xffffffff;
- seed = ((seed ^ 0xc761c23c) ^ (seed >>> 19)) & 0xffffffff;
- seed = ((seed + 0x165667b1) + (seed << 5)) & 0xffffffff;
- seed = ((seed + 0xd3a2646c) ^ (seed << 9)) & 0xffffffff;
- seed = ((seed + 0xfd7046c5) + (seed << 3)) & 0xffffffff;
- seed = ((seed ^ 0xb55a4f09) ^ (seed >>> 16)) & 0xffffffff;
- return (seed & 0xfffffff) / 0x10000000;
- };
-})();
-
-
-// Runs all registered benchmark suites and optionally yields between
-// each individual benchmark to avoid running for too long in the
-// context of browsers. Once done, the final score is reported to the
-// runner.
-BenchmarkSuite.RunSuites = function(runner) {
- var continuation = null;
- var suites = BenchmarkSuite.suites;
- var length = suites.length;
- BenchmarkSuite.scores = [];
- var index = 0;
- function RunStep() {
- while (continuation || index < length) {
- if (continuation) {
- continuation = continuation();
- } else {
- var suite = suites[index++];
- if (runner.NotifyStart) runner.NotifyStart(suite.name);
- continuation = suite.RunStep(runner);
- }
- if (continuation && typeof window != 'undefined' && window.setTimeout) {
- window.setTimeout(RunStep, 25);
- return;
- }
- }
- if (runner.NotifyScore) {
- var score = BenchmarkSuite.GeometricMean(BenchmarkSuite.scores);
- var formatted = BenchmarkSuite.FormatScore(100 * score);
- runner.NotifyScore(formatted);
- }
- }
- RunStep();
-}
-
-
-// Counts the total number of registered benchmarks. Useful for
-// showing progress as a percentage.
-BenchmarkSuite.CountBenchmarks = function() {
- var result = 0;
- var suites = BenchmarkSuite.suites;
- for (var i = 0; i < suites.length; i++) {
- result += suites[i].benchmarks.length;
- }
- return result;
-}
-
-
-// Computes the geometric mean of a set of numbers.
-BenchmarkSuite.GeometricMean = function(numbers) {
- var log = 0;
- for (var i = 0; i < numbers.length; i++) {
- log += Math.log(numbers[i]);
- }
- return Math.pow(Math.E, log / numbers.length);
-}
-
-
-// Converts a score value to a string with at least three significant
-// digits.
-BenchmarkSuite.FormatScore = function(value) {
- if (value > 100) {
- return value.toFixed(0);
- } else {
- return value.toPrecision(3);
- }
-}
-
-// Notifies the runner that we're done running a single benchmark in
-// the benchmark suite. This can be useful to report progress.
-BenchmarkSuite.prototype.NotifyStep = function(result) {
- this.results.push(result);
- if (this.runner.NotifyStep) this.runner.NotifyStep(result.benchmark.name);
-}
-
-
-// Notifies the runner that we're done with running a suite and that
-// we have a result which can be reported to the user if needed.
-BenchmarkSuite.prototype.NotifyResult = function() {
- var mean = BenchmarkSuite.GeometricMean(this.results);
- var score = this.reference / mean;
- BenchmarkSuite.scores.push(score);
- if (this.runner.NotifyResult) {
- var formatted = BenchmarkSuite.FormatScore(100 * score);
- this.runner.NotifyResult(this.name, formatted);
- }
-}
-
-
-// Notifies the runner that running a benchmark resulted in an error.
-BenchmarkSuite.prototype.NotifyError = function(error) {
- if (this.runner.NotifyError) {
- this.runner.NotifyError(this.name, error);
- }
- if (this.runner.NotifyStep) {
- this.runner.NotifyStep(this.name);
- }
-}
-
-
-// Runs a single benchmark for at least a second and computes the
-// average time it takes to run a single iteration.
-BenchmarkSuite.prototype.RunSingleBenchmark = function(benchmark, data) {
- function Measure(data) {
- var elapsed = 0;
- var start = new Date();
- for (var n = 0; elapsed < 1000; n++) {
- benchmark.run();
- elapsed = new Date() - start;
- }
- if (data != null) {
- data.runs += n;
- data.elapsed += elapsed;
- }
- }
-
- if (data == null) {
- // Measure the benchmark once for warm up and throw the result
- // away. Return a fresh data object.
- Measure(null);
- return { runs: 0, elapsed: 0 };
- } else {
- Measure(data);
- // If we've run too few iterations, we continue for another second.
- if (data.runs < 32) return data;
- var usec = (data.elapsed * 1000) / data.runs;
- this.NotifyStep(new BenchmarkResult(benchmark, usec));
- return null;
- }
-}
-
-
-// This function starts running a suite, but stops between each
-// individual benchmark in the suite and returns a continuation
-// function which can be invoked to run the next benchmark. Once the
-// last benchmark has been executed, null is returned.
-BenchmarkSuite.prototype.RunStep = function(runner) {
- this.results = [];
- this.runner = runner;
- var length = this.benchmarks.length;
- var index = 0;
- var suite = this;
- var data;
-
- // Run the setup, the actual benchmark, and the tear down in three
- // separate steps to allow the framework to yield between any of the
- // steps.
-
- function RunNextSetup() {
- if (index < length) {
- try {
- suite.benchmarks[index].Setup();
- } catch (e) {
- suite.NotifyError(e);
- return null;
- }
- return RunNextBenchmark;
- }
- suite.NotifyResult();
- return null;
- }
-
- function RunNextBenchmark() {
- try {
- data = suite.RunSingleBenchmark(suite.benchmarks[index], data);
- } catch (e) {
- suite.NotifyError(e);
- return null;
- }
- // If data is null, we're done with this benchmark.
- return (data == null) ? RunNextTearDown : RunNextBenchmark();
- }
-
- function RunNextTearDown() {
- try {
- suite.benchmarks[index++].TearDown();
- } catch (e) {
- suite.NotifyError(e);
- return null;
- }
- return RunNextSetup;
- }
-
- // Start out running the setup.
- return RunNextSetup();
-}
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