Run results for: math on array vs float32array vs float64array - v2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

array dot

49K/s

Float32Array dot

28K/s

Float64Array dot

25K/s

View exact numbers

Test name	Executions per second
✓ array dot	49,320 Ops/sec
Float32Array dot	27,625 Ops/sec
Float64Array dot	24,905 Ops/sec

Script Preparation code:

var a = [...Array(10000)].map(_ => Math.random());
var av2 = [...Array(10000)].map(_ => Math.random());
var ta32 = (new Float32Array(10000)).map(_ => Math.random());
var ta32v2 = (new Float32Array(10000)).map(_ => Math.random());
var ta64 = (new Float64Array(10000)).map(_ => Math.random());
var ta64v2 = (new Float64Array(10000)).map(_ => Math.random());

Tests:

array dot
let sum = 0.0; for (let i = 0; i < 10000; ++i) { sum += a[i] * av2[i]; }
Float32Array dot
let sum = 0.0; for (let i = 0; i < 10000; ++i) { sum += ta32[i] * ta32v2[i]; }
Float64Array dot
let sum = 0.0; for (let i = 0; i < 10000; ++i) { sum += ta64[i] * ta64v2[i]; }