Run results for: array vs Float64Array vs Float32Array

Run details:

User agent: Mozilla/5.0 (Android 13; Mobile; rv:122.0) Gecko/122.0 Firefox/122.0

Browser: Firefox Mobile 122

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Float32Array reverse

48K/s

Float64Array i/o

46K/s

array reverse

45K/s

Float64Array reverse

43K/s

array i/o

31K/s

Float32Array i/o

29K/s

View exact numbers

Test name	Executions per second
✓ Float32Array reverse	47,822 Ops/sec
Float64Array i/o	46,421 Ops/sec
array reverse	44,550 Ops/sec
Float64Array reverse	42,644 Ops/sec
array i/o	30,841 Ops/sec
Float32Array i/o	28,842 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;