Benchmark: PRNG functions in plain JavaScript fork

Script Preparation code:

var a = 1;
var b = 2;
var c = 3;
var d = 4;
var x;



function sfc32(a, b, c, d) {
    return function() {
        a |= 0;
        b |= 0;
        c |= 0;
        d |= 0;
        let t = (a + b | 0) + d | 0;
        d = d + 1 | 0;
        a = b ^ b >>> 9;
        b = c + (c << 3) | 0;
        c = (c << 21 | c >>> 11);
        c = c + t | 0;
        return (t >>> 0) / 4294967296;
    }
}

function splitmix32(a) {
    return function() {
        a |= 0;
        a = a + 0x9e3779b9 | 0;
        let t = a ^ a >>> 16;
        t = Math.imul(t, 0x21f0aaad);
        t = t ^ t >>> 15;
        t = Math.imul(t, 0x735a2d97);
        return ((t = t ^ t >>> 15) >>> 0) / 4294967296;
    }
}

function mulberry32(a) {
    return function() {
        let t = a += 0x6D2B79F5;
        t = Math.imul(t ^ t >>> 15, t | 1);
        t ^= t + Math.imul(t ^ t >>> 7, t | 61);
        return ((t ^ t >>> 14) >>> 0) / 4294967296;
    }
}

function xoshiro128ss(a, b, c, d) {
    return function() {
        let t = b << 9,
            r = b * 5;
        r = (r << 7 | r >>> 25) * 9;
        c ^= a;
        d ^= b;
        b ^= c;
        a ^= d;
        c ^= t;
        d = d << 11 | d >>> 21;
        return (r >>> 0) / 4294967296;
    }
}

function jsf32(a, b, c, d) {
    return function() {
        a |= 0;
        b |= 0;
        c |= 0;
        d |= 0;
        let t = a - (b << 27 | b >>> 5) | 0;
        a = b ^ (c << 17 | c >>> 15);
        b = c + d | 0;
        c = d + t | 0;
        d = a + t | 0;
        return (d >>> 0) / 4294967296;
    }
}

Tests:

sfc32 (Simple Fast Counter)
x = sfc32(a, b, c, d);
SplitMix32
x = splitmix32(a);
Mulberry32
x = mulberry32(a);
xoshiro128**
x = xoshiro128ss(a, b, c, d);
JSF (Jenkins' Small Fast)
x = jsf32(a, b, c, d);
standart
x = Math.random();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
sfc32 (Simple Fast Counter)
SplitMix32
Mulberry32
xoshiro128**
JSF (Jenkins' Small Fast)
standart

PRNG functions in plain JavaScript fork (version: 0)

Comparing performance of: sfc32 (Simple Fast Counter) vs SplitMix32 vs Mulberry32 vs xoshiro128** vs JSF (Jenkins' Small Fast) vs standart

Created: one year ago by: Guest

Jump to the latest result

sfc32 (Simple Fast Counter)

SplitMix32

Mulberry32

xoshiro128**

JSF (Jenkins' Small Fast)

standart

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results