Benchmark: math on array vs float32array vs float64array

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 sort [Async/Deferred]
a.sort();
Float32Array sort [Async/Deferred]
ta32.sort();
Float64Array sort [Async/Deferred]
ta64.sort();
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]; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array sort
Float32Array sort
Float64Array sort
array dot
Float32Array dot
Float64Array dot

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

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/OS: Chrome 134 on Windows

View result in a separate tab

Test name	Executions per second
array sort	1135.2 Ops/sec
Float32Array sort	12454.9 Ops/sec
Float64Array sort	14103.0 Ops/sec
array dot	30443.1 Ops/sec
Float32Array dot	26723.2 Ops/sec
Float64Array dot	29330.3 Ops/sec

Related benchmarks:

math on array vs float32array vs float64array (version: 4)

Comparing performance of: array sort vs Float32Array sort vs Float64Array sort vs array dot vs Float32Array dot vs Float64Array dot

Created: one year ago by: Registered User

Jump to the latest result

array sort [Async/Deferred]

Float32Array sort [Async/Deferred]

Float64Array sort [Async/Deferred]

array dot

Float32Array dot

Float64Array dot

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A