Multiply vs divide vs shift

JavaScript performance comparison

Revision 15 of this test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var counter = 0;
};
</script>

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Testing in unknown unknown
Test Ops/sec
Multiply
var r = counter + 0.1,
  x = r * 0.25,
  y = r * 0.5,
  z = r * 0.125,
  a = r * 2;
pending…
Divide
var r = counter + 0.1,
  x = r / 4,
  y = r / 2,
  z = r / 8,
  a = r / 0.5;
pending…

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