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benchmark

LICENSE.txt
README.md
benchmark.js
doc/
package.json
test/

README.md

Benchmark.js <sup>v1.0.0</sup>

A [robust](http://calendar.perfplanet.com/2010/bulletproof-javascript-benchmarks/ "Bulletproof JavaScript benchmarks") benchmarking library that works on nearly all JavaScript platforms<sup><a name="fnref1" href="#fn1">1</a></sup>, supports high-resolution timers, and returns statistically significant results. As seen on jsPerf.

BestieJS

Benchmark.js is part of the BestieJS *"Best in Class"* module collection. This means we promote solid browser/environment support, ES5 precedents, unit testing, and plenty of documentation.

Documentation

The documentation for Benchmark.js can be viewed here: http://benchmarkjs.com/docs

For a list of upcoming features, check out our roadmap.

Support

Benchmark.js has been tested in at least Adobe AIR 3.1, Chrome 5-21, Firefox 1.5-13, IE 6-9, Opera 9.25-12.01, Safari 3-6, Node.js 0.8.6, Narwhal 0.3.2, RingoJS 0.8, and Rhino 1.7RC5.

Installation and usage

In a browser or Adobe AIR:

~~~ html <script src="benchmark.js"></script> ~~~

Optionally, expose Java’s nanosecond timer by adding the nano applet to the <body>:

~~~ html <applet code="nano" archive="nano.jar"></applet> ~~~

Or enable Chrome’s microsecond timer by using the command line switch:

--enable-benchmarking

Via npm:

~~~ bash npm install benchmark ~~~

In Node.js and RingoJS v0.8.0+:

~~~ js var Benchmark = require('benchmark'); ~~~

Optionally, use the microtime module by Wade Simmons:

~~~ bash npm install microtime ~~~

In RingoJS v0.7.0-:

~~~ js var Benchmark = require('benchmark').Benchmark; ~~~

In Rhino:

~~~ js load('benchmark.js'); ~~~

In an AMD loader like RequireJS:

~~~ js require({

'paths': {
  'benchmark': 'path/to/benchmark'
}

}, ['benchmark'], function(Benchmark) {

console.log(Benchmark.version);

});

or with platform.js https://github.com/bestiejs/platform.js require({

'paths': {
  'benchmark': 'path/to/benchmark',
  'platform': 'path/to/platform'
}

}, ['benchmark', 'platform'], function(Benchmark, platform) {

Benchmark.platform = platform;
console.log(Benchmark.platform.name);

}); ~~~

Usage example:

~~~ js var suite = new Benchmark.Suite;

// add tests suite.add('RegExp#test', function() {

/o/.test('Hello World!');

}) .add('String#indexOf', function() {

'Hello World!'.indexOf('o') > -1;

}) // add listeners .on('cycle', function(event) {

console.log(String(event.target));

}) .on('complete', function() {

console.log('Fastest is ' + this.filter('fastest').pluck('name'));

}) // run async .run({ 'async': true });

logs: > RegExp#test x 4,161,532 +-0.99% (59 cycles) > String#indexOf x 6,139,623 +-1.00% (131 cycles) > Fastest is String#indexOf ~~~

Authors

Contributors

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