Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var len = 10000;
    if (!window._data || !window._sorted) {
        window._data = [];
        window._sorted = [];
        for (var x = 0; x < len; x++) {
            var r = Math.floor(Math.random() * 256)
            window._data.push(r);
            window._sorted.push(r);
        }
        window._sorted.sort(function(a,b){return a - b});
    }
    var data = window._data
    var sorted = window._sorted
  };
</script>

Test runner

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var sum = 0;
for (var i = 0; i < len; i++) {
    if (data[i] >= 128) {
        sum += data[i];
    }
}
return sum;
 

var sum = 0;
for (var i = 0; i < len; i++) {
    if (sorted[i] >= 128) {
        sum += sorted[i];
    }
}
return sum;
 

var sum = 0;
for (var i = 0; i < len; i++) {
    var t = (data[i] - 128) >> 31;
    sum += ~t & data[i];
}
return sum;
 

var sum = 0;
for (var i = 0; i < len; i++) {
    var t = (sorted[i] - 128) >> 31;
    sum += ~t & sorted[i];
}
return sum;
 

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published on 11th October 2012
• Revision 2: published on 11th October 2012
• Revision 3: published on 11th October 2012

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