Run results for: array vs Float64Array vs Float32Array

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_8_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.8.3

Device Platform: Mobile

Date tested: one year ago

Float32Array reverse

151K/s

Float64Array reverse

131K/s

array reverse

79K/s

array i/o

340/s

Float32Array i/o

303/s

Float64Array i/o

297/s

View exact numbers

Test name	Executions per second
✓ Float32Array reverse	150,621 Ops/sec
Float64Array reverse	131,235 Ops/sec
array reverse	78,843 Ops/sec
array i/o	340 Ops/sec
Float32Array i/o	303 Ops/sec
Float64Array i/o	297 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;