MeasureThat.net

Run results for: array vs Float64Array vs Float32Array

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Run details:
Mozilla/5.0 (Linux; Android 11; Mi 10 Pro Build/RKQ1.200826.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.120 MQQBrowser/6.2 TBS/045709 Mobile Safari/537.36 MMWEBID/8538 MicroMessenger/8.0.6.1900(0x28000653) Process/tools WeChat/arm64 Weixin NetType/4G Language/zh_CN ABI/arm64
QQ Browser Mobile 6
Android
Mobile
3 years ago
Test name Executions per second
array reverse 109582.3 Ops/sec
Float64Array reverse 252372.1 Ops/sec
array i/o 661.0 Ops/sec
Float64Array i/o 653.8 Ops/sec
Float32Array reverse 266506.6 Ops/sec
Float32Array i/o 649.5 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;