asm-js

JavaScript performance comparison

Revision 9 of this test case created

Preparation code

<script>
var ASMTemplate = function(stdlib) {
    var sqrt = 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 generateASM = function() {
   var template = 'function test(window) { "use asm;"' + ASMTemplate.toString().slice(19, -1) + '}';
   return console.log(eval(template));
};

var one = generateASM();
var two = generateASM();
</script>

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

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

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

1 comment

Jon Kleiser commented :

With Rev. 9 in Firefox (27.0) I get "TypeError: one is undefined" and "TypeError: two is undefined". In Safari and Chrome I get similar errors.

Add a comment