MeasureThat.net

Run results for: array vs Float64Array vs Float32Array

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36
Chrome 94
Windows
Desktop
3 years ago
Test name Executions per second
array reverse 115092.4 Ops/sec
Float64Array reverse 296656.5 Ops/sec
array i/o 874.0 Ops/sec
Float64Array i/o 846.5 Ops/sec
Float32Array reverse 391554.1 Ops/sec
Float32Array i/o 858.1 Ops/sec
Script Preparation code:
AخA
 
var a = [...Array(10000)].map(_ => Math.random());
var ta = (new Float64Array(10000)).map(_ => Math.random());
var tb = (new Float32Array(10000)).map(_ => Math.random());
Tests:

  • array reverse

     
    a.reverse();

  • Float64Array reverse

     
    ta.reverse();

  • array i/o

     
    for (let i = 0; i < 10000; ++i)
      a[i] = a[i] + 1;

  • Float64Array i/o

     
    for (let i = 0; i < 10000; ++i)
      ta[i] = ta[i] + 1;

  • Float32Array reverse

     
    tb.reverse();

  • Float32Array i/o

     
    for (let i = 0; i < 10000; ++i)
      tb[i] = tb[i] + 1;