MeasureThat.net

Run results for: array vs Float64Array vs Float32Array

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Run details:
Mozilla/5.0 (iPad; CPU OS 14_8 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/94.0.4606.76 Mobile/15E148 Safari/604.1
Chrome Mobile iOS 94
iOS 14.8
Tablet
3 years ago
Test name Executions per second
array reverse 137472.8 Ops/sec
Float64Array reverse 355730.4 Ops/sec
array i/o 860.1 Ops/sec
Float64Array i/o 941.7 Ops/sec
Float32Array reverse 357032.4 Ops/sec
Float32Array i/o 919.1 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;