Run results for: Math.log2 vs division for power of two vs multiple of x vs max32

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/28.0 Chrome/130.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 130

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Max32

42.7M/s

Multiple of x

40.4M/s

Division

35.9M/s

Math.log2

33.1M/s

View exact numbers

Tests:

Division
return 4294967295 / 65536 >>> 0;
Math.log2
return 4294967295 >>> (32 - Math.log2(65536));
Multiple of x
const kelipatan = 65536 * (2_097_152 / 65536 >>> 0); const urutanAcak = 4294967295 >>> 11; const reject = urutanAcak >= kelipatan; return urutanAcak % 65536;
Max32
return 4294967295 * 65536 / 4294967296 >>> 0;