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Run results for:
array vs float32array performance test
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<iframe src="https://measurethat.net/Embed?id=511996" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0
Browser:
Firefox 123
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 years ago
typedArray i/o
109K/s
array i/o
65K/s
typedArray i/o with convert back to array
12K/s
typedArray sort
12K/s
array sort
8K/s
View exact numbers
Test name
Executions per second
✓
typedArray i/o
109,247 Ops/sec
array i/o
64,677 Ops/sec
typedArray i/o with convert back to array
12,379 Ops/sec
typedArray sort
11,966 Ops/sec
array sort
7,875 Ops/sec
Script Preparation code:
function getRandomInt(max) { return Math.floor(Math.random() * max); } var a = [...new Array(10000)].map(_ => getRandomInt(1000000)); var ta = (new Float32Array(10000)).map(_ => getRandomInt(1000000));
Tests:
array sort
a.sort();
typedArray sort
ta.sort();
array i/o
for (let i = 0; i < 10000; ++i) { a[i] = a[i] + 1; }
typedArray i/o
for (let i = 0; i < 10000; ++i) { ta[i] = ta[i] + 1; }
typedArray i/o w convert back to array
for (let i = 0; i < 10000; ++i) { ta[i] = ta[i] + 1; } let tb = Array.from(ta);
create arrays
const a = []; for (let i = 0; i < 10000; ++i) { a.push([i]); }
create typed arrays
const a = []; for (let i = 0; i < 10000; ++i) { a.push(new Float32Array([i])); }
create typed arrays in typed array
const a = new Float32Array(10000); for (let i = 0; i < 10000; ++i) { a[i] = new Float32Array([i]); }