Run results for: Sorting small integers: Array vs various TypedArray types performance

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Uint16Array.prototype.sort

502/s

Int16Array.prototype.sort

449/s

BigInt64Array.prototype.sort

100/s

BigUint64Array.prototype.sort

95/s

Uint32Array.prototype.sort

85/s

Int32Array.prototype.sort

81/s

Float32Array.prototype.sort

68/s

Float64Array.prototype.sort

37/s

Array.prototype.sort

33/s

View exact numbers

Test name	Executions per second
✓ Uint16Array.prototype.sort	502 Ops/sec
Int16Array.prototype.sort	449 Ops/sec
BigInt64Array.prototype.sort	100 Ops/sec
BigUint64Array.prototype.sort	95 Ops/sec
Uint32Array.prototype.sort	85 Ops/sec
Int32Array.prototype.sort	81 Ops/sec
Float32Array.prototype.sort	68 Ops/sec
Float64Array.prototype.sort	37 Ops/sec
Array.prototype.sort	33 Ops/sec

Script Preparation code:

const ELEMENT_COUNT = 1_000_000;
const INT_VALUE_MIN = 0;
const INT_VALUE_MAX = 2 ** 15 - 1;

const array = new Array(ELEMENT_COUNT);
const int16array = new Int16Array(ELEMENT_COUNT);
const uint16array = new Uint16Array(ELEMENT_COUNT);
const int32array = new Int32Array(ELEMENT_COUNT);
const uint32array = new Uint32Array(ELEMENT_COUNT);
const float32array = new Float32Array(ELEMENT_COUNT);
const float64array = new Float64Array(ELEMENT_COUNT);
const bigint64array = new BigInt64Array(ELEMENT_COUNT);
const biguint64array = new BigUint64Array(ELEMENT_COUNT);

for (let i = 0; i < ELEMENT_COUNT; i++) {
  const value = INT_VALUE_MIN + Math.floor(Math.random() * INT_VALUE_MAX);

  array[i] = value;
  int16array[i] = value;
  uint16array[i] = value;
  int32array[i] = value;
  uint32array[i] = value;
  float32array[i] = value;
  float64array[i] = value;
  bigint64array[i] = BigInt(value);
  biguint64array[i] = BigInt(value);
}

const comparator = (a, b) => a - b;

Tests:

Array.prototype.sort
array.sort(comparator);
Int16Array.prototype.sort
int16array.sort();
Uint16Array.prototype.sort
uint16array.sort();
Int32Array.prototype.sort
int32array.sort();
Uint32Array.prototype.sort
uint32array.sort();
Float32Array.prototype.sort
float32array.sort();
Float64Array.prototype.sort
float64array.sort();
BigInt64Array.prototype.sort
bigint64array.sort();
BigUint64Array.prototype.sort
biguint64array.sort();