Run results for: typed array copyWithin vs set

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

set

158K/s

copyWithin

157K/s

View exact numbers

Test name	Executions per second
✓ set	158,113 Ops/sec
copyWithin	157,151 Ops/sec

Script Preparation code:

var array1_1e6 = Float32Array.from({length: 1e6}, Math.random);
var target = 1e5;
var start = 2e5;
var end = 3e5;
var array1_1e5 = Float32Array.from({length: 1e5}, Math.random);
var array2_1e5 = Float32Array.from({length: 1e5}, Math.random);

Tests:

set
array1_1e5.set(array2_1e5);
copyWithin
array1_1e6.copyWithin(target, start, end);

Run results for: typed array copyWithin vs set

comparing speed of copyWithin vs set

set

copyWithin