Run results for: array vs Float64Array vs Float32Array

Run details:

User agent: Mozilla/5.0 (Android 9; Mobile; rv:121.0) Gecko/121.0 Firefox/121.0

Browser: Firefox Mobile 121

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

array reverse

35K/s

Float32Array reverse

20K/s

Float64Array reverse

20K/s

Float64Array i/o

20K/s

Float32Array i/o

18K/s

array i/o

12K/s

View exact numbers

Test name	Executions per second
✓ array reverse	34,801 Ops/sec
Float32Array reverse	20,214 Ops/sec
Float64Array reverse	20,004 Ops/sec
Float64Array i/o	19,705 Ops/sec
Float32Array i/o	17,726 Ops/sec
array i/o	11,684 Ops/sec

Script Preparation code:

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;