Run results for: read write ArrayBuffer: DataView vs Float64Array.set v2

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Float32Array

140/s

DataView 32

139/s

Float64Array

139/s

DataView

138/s

View exact numbers

Test name	Executions per second
✓ Float32Array	140 Ops/sec
DataView 32	139 Ops/sec
Float64Array	139 Ops/sec
DataView	138 Ops/sec

Script Preparation code:

var size = 50000;
var buf = new ArrayBuffer(size*8);
var view = new DataView(buf);
var buf2 = new ArrayBuffer(size*4);
var view2 = new DataView(buf2);
var data = new Float64Array(size);
var data2 = new Float32Array(size);

Tests:

DataView
for (let i=0; i < size; i++) { view.setFloat64(i*8, 992.2258); } for (let i=0; i < size; i++) { const res = view.getFloat64(i*8); }
Float64Array
for (let i=0; i < size; i++) { data[i] = 992.2258; } for (let i=0; i < size; i++) { const res = data[i]; }
Float32Array
for (let i=0; i < size; i++) { data[i] = 992.2258; } for (let i=0; i < size; i++) { const res = data[i]; }
DataView 32
for (let i=0; i < size; i++) { view2.setFloat32(i*4, 992.2258); } for (let i=0; i < size; i++) { const res = view2.getFloat32(i*4); }