asm-js

JavaScript performance comparison

Revision 7 of this test case created

Preparation code

<script>
function DiagModuleASM(stdlib) {
    //"use asm";

    var sqrt = stdlib.Math.sqrt;

    function square(x) {
        x = +x;
        return +(x*x);
    }

    function diag(x, y) {
        x = +x;
        y = +y;
        return +sqrt(+square(x) + +square(y));
    }

    return { diag: diag };
}

var one = DiagModuleASM(window);
var two = new Function(DiagModuleASM.toString().replace('//"use asm";', '"use asm";'))
</script>

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Testing in unknown unknown
Test Ops/sec
fast
one.diag(3, 4)
pending…
slow
two.diag(3, 4);
pending…

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