Run results for: Float64 vs Array

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 114

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
f32 iterate	3.2 Ops/sec
f32 set	1333.1 Ops/sec
f64 iterate	3.2 Ops/sec
f64 set	659.9 Ops/sec
arr iterate	3.3 Ops/sec

Script Preparation code:

var length = 1e6;

var f32_a = Float32Array.from({length}, Math.random);
var f32_b = Float32Array.from({length}, Math.random);

var f64_a = Float64Array.from({length}, Math.random);
var f64_b = Float64Array.from({length}, Math.random);

var arr_a = Array.from({length}, Math.random);
var arr_b = Array.from({length}, Math.random);

Tests:

f32 iterate
for (var i = 0; i < length; i++) { f32_b[i] = f32_a[i]; }
f32 set
f32_b.set(f32_a);
f64 iterate
for (var i = 0; i < length; i++) { f64_b[i] = f64_a[i]; }
f64 set
f64_b.set(f64_a);
arr iterate
for (var i = 0; i < length; i++) { arr_b[i] = arr_a[i]; }

Run results for: Float64 vs Array

Blah

f32 iterate

f32 set

f64 iterate

f64 set

arr iterate