MeasureThat.net

Run results for: bitwise operator vs. boolean logic when using TypedArrays

Bitwise operators are slow in javascript because there is implicit type conversion between floats and ints. If we use TypedArrays though, javascript engines shouldn't have to convert. But do they? This test is here to find out. We'll also check to see whether conversion is performed between another int-like datatypes, Uint32

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/110.0
Firefox 110
Linux
Desktop
one year ago
Test name Executions per second
bitwise operator on Int32Array 100635.6 Ops/sec
boolean operator on Int32Array 108393.5 Ops/sec
boolean operator with comparitors on Int32Array 66234.2 Ops/sec
bitwise operator on Float32Array 54418.1 Ops/sec
bitwise operator on Uint32Array 72573.4 Ops/sec
boolean operator on Uint32Array 72612.2 Ops/sec
boolean operator on Uint32Array with comparators 54461.3 Ops/sec
Script Preparation code:
Tests:

  • bitwise operator on Int32Array

  • boolean operator on Int32Array

  • boolean operator with comparitors on Int32Array

  • bitwise operator on Float32Array

  • bitwise operator on Uint32Array

  • boolean operator on Uint32Array

  • boolean operator on Uint32Array with comparators

;