native vs typed js array speed

JavaScript performance comparison

Revision 14 of this test case created by

Preparation code

<script>
  var arraySize = 10;
  
  var typedArray = new Int32Array(arraySize);
  var nativeArray = new Array(arraySize);
</script>
      
<script>
Benchmark.prototype.setup = function() {
  var sum = 0;

};
</script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Native Write
//Write
for (var i = arraySize-1; i; i--) {
 nativeArray[i] = i;
}
pending…
Typed Write
//Write
for (var i = arraySize-1; i; i--) {
 typedArray[i] = i;
}

pending…
Native Read
//Read
for (var i = arraySize-1; i; i--) {
 nativeArray[i];
}
pending…
Typed Read
//Read
for (var i = arraySize-1; i; i--) {
 nativeArray[i];
}
pending…

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Revisions

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