MeasureThat.net

Run results for: array vs Float64Array vs Float32Array

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Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36
Chrome 91
Linux
Desktop
3 years ago
Test name Executions per second
array reverse 106921.3 Ops/sec
Float64Array reverse 317320.2 Ops/sec
array i/o 704.0 Ops/sec
Float64Array i/o 707.0 Ops/sec
Float32Array reverse 312697.2 Ops/sec
Float32Array i/o 706.7 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;