MeasureThat.net

Run results for: array vs Float64Array vs Float32Array

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Run details:
Mozilla/5.0 (Android 12; Mobile; rv:121.0) Gecko/121.0 Firefox/121.0
Firefox Mobile 121
Android
Mobile
one year ago
Test name Executions per second
array reverse 28846.9 Ops/sec
Float64Array reverse 50637.2 Ops/sec
array i/o 35503.4 Ops/sec
Float64Array i/o 44586.2 Ops/sec
Float32Array reverse 50826.9 Ops/sec
Float32Array i/o 48553.9 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;