Run results for: array vs Float64Array vs Float32Array

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Float64Array reverse

390K/s

Float32Array reverse

388K/s

Float32Array i/o

137K/s

Float64Array i/o

133K/s

array reverse

132K/s

array i/o

100K/s

View exact numbers

Test name	Executions per second
✓ Float64Array reverse	389,898 Ops/sec
Float32Array reverse	387,888 Ops/sec
Float32Array i/o	137,079 Ops/sec
Float64Array i/o	132,787 Ops/sec
array reverse	132,126 Ops/sec
array i/o	99,897 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;