Run results for: Array vs Float64Array performance

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:138.0) Gecko/20100101 Firefox/138.0

Browser: Firefox 138

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Float64Array.prototype.sort

980/s

Array.prototype.sort

79/s

View exact numbers

Test name	Executions per second
✓ Float64Array.prototype.sort	980 Ops/sec
Array.prototype.sort	79 Ops/sec

Script Preparation code:

const elementCount = 1_000_000;
const array = new Array(elementCount);
const f64array = new Float64Array(elementCount);
for (let i = 0; i < elementCount; i++) {
  const value = Math.random();
  array[i] = value;
  f64array[i] = value;
}
const comparator = (a, b) => a - b;

Tests:

Array.prototype.sort
array.sort(comparator);
Float64Array.prototype.sort
f64array.sort();