mt.js/mt19937.html at master · tangstad/mt.js · GitHub

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<html>
<head>
<script src="mt19937.js"></script>
<script>
var mt;

var start_time;
var end_time;

var results = [0, 0, 0, 0, 0, 0, 0, 0];
var run_count = 1000;

var tmp;

function benchmark_seeding()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.init();

	end_time = new Date() - start_time;

	results[0] = end_time;
}

function benchmark_seeding_with_seed()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.init(4357);

	end_time = new Date() - start_time;

	results[1] = end_time;
}

function benchmark_ints()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.nextInt();

	end_time = new Date() - start_time;

	results[2] = end_time;
}

function benchmark_ints_with_max()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.nextInt(100);

	end_time = new Date() - start_time;

	results[3] = end_time;
}

function benchmark_ints_with_minmax()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.nextInt(1, 100);

	end_time = new Date() - start_time;

	results[4] = end_time;
}

function benchmark_floats()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.next();

	end_time = new Date() - start_time;

	results[5] = end_time;
}

function benchmark_floats_with_max()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.next(5.5);

	end_time = new Date() - start_time;

	results[6] = end_time;
}

function benchmark_floats_with_minmax()
{
    start_time = new Date();

	for (var i = 0; i < run_count; i++)
	    tmp = mt.next(0.5, 5.5);

	end_time = new Date() - start_time;

	results[7] = end_time;
}

function start()
{
    mt = new MersenneTwister();

    document.getElementById('count').innerHTML = run_count;

    benchmark_seeding();
    benchmark_seeding_with_seed();

    benchmark_ints();
    benchmark_ints_with_max();
    benchmark_ints_with_minmax();

    benchmark_floats();
    benchmark_floats_with_max();
    benchmark_floats_with_minmax();

    document.getElementById('res_0').innerHTML = results[0];
    document.getElementById('res_1').innerHTML = results[1];
    document.getElementById('res_2').innerHTML = results[2];
    document.getElementById('res_3').innerHTML = results[3];
    document.getElementById('res_4').innerHTML = results[4];
    document.getElementById('res_5').innerHTML = results[5];
    document.getElementById('res_6').innerHTML = results[6];
    document.getElementById('res_7').innerHTML = results[7];
}

</script>
</head>
<body onload="start();">
	<h1>mt.js Benchmark Results</h1>
	<h3>Benchmark rounds performed per item: <span id="count">0</span></h3>
	<ul>
	    <li>Seeding with dynamic seed: <span id="res_0">0</span>ms</li>
	    <li>Seeding with static seed: <span id="res_1">0</span>ms</li>
	    <li>Ints: <span id="res_2">0</span>ms</li>
	    <li>Ints with max: <span id="res_3">0</span>ms</li>
	    <li>Ints with min/max: <span id="res_4">0</span>ms</li>
	    <li>Floats: <span id="res_5">0</span>ms</li>
	    <li>Floats with max: <span id="res_6">0</span>ms</li>
        <li>Floats with min/max: <span id="res_7">0</span>ms</li>
    </ul>
</body>
</html>