phpjs/workbench/bc/bcmath-js/src/bcmath.benchmark.js

php.js offers community built php functions in javascript

if (typeof(bcmath) == 'undefined') {
  bcmath = {};
}


/**
 * Benchmarking tools to see if your changes make a difference or not.
 * Saving every ms counts when code is used heavily by large applications.
 */
bcmath.benchmark = {
  lastStart: null,
  lastStop: null,
  testCount: 500,

  doBenchmark: function() {

    var i, x, browserTime, bcTime;
    bcTime = bcmath.benchmark.start();
    for (i = 0; i < bcmath.benchmark.testCount; i++) {
      x = bcdiv('8728932001983192837219398127471' + i + '.34213', '1928372132132819737213' + i + '.99843', 2);
      x = bcmul('1131231232321312' + i + '.3343', '3311231232123' + i + '.00', 2);
      x = bcsub('123123123215589810231' + i + '.3343', '9948123131' + i + '.314', 6);
      x = bcadd('9234232397842987' + i + '.342', '98432908432' + i + '.3242314', 6);
    }
    bcTime = bcmath.benchmark.stop();

    alert('Benchmark time: ' + bcTime);


  },

  start: function() {
    var d = new Date();
    bcmath.benchmark.lastStart = d.getTime();

  },

  stop: function() {
    var d = new Date();
    bcmath.benchmark.lastStop = d.getTime();
    return ((bcmath.benchmark.lastStop - bcmath.benchmark.lastStart) / 1000).toFixed(3) + ' seconds';
  }
};