Run results for: array vs Float64Array vs Float32Array

Run details:

User agent: Mozilla/5.0 (Android 12; 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

Float32Array reverse

51K/s

Float64Array reverse

51K/s

Float32Array i/o

49K/s

Float64Array i/o

45K/s

array i/o

36K/s

array reverse

29K/s

View exact numbers

Test name	Executions per second
✓ Float32Array reverse	50,827 Ops/sec
Float64Array reverse	50,637 Ops/sec
Float32Array i/o	48,554 Ops/sec
Float64Array i/o	44,586 Ops/sec
array i/o	35,503 Ops/sec
array reverse	28,847 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;