benchmark-results.log

Length       Normal arrays    TypedArrays (before)    TypedArrays (after)
Small (4)    340 ms           2400 ms                 96 ms
Large (16)   510 ms           7900 ms                 280 ms
Dynamic      5500 ms          12300 ms                1900 ms

typedarray-length-dynamic.js

(function() {
for(var i=0;i<10000000;i++) {
    var len = (i & 0xff) + 2
    arr = new Float64Array(len);
    //var arr = [];
    //for (var c = 0; c < len; c++)
    //    arr[c] = 0.;
    arr[0] = 1.2;
    if (arr[0] === arr[1])
        print('fail');
}
})();

typedarray-length-large.js

(function() {
for(var i=0;i<10000000;i++) {
    var a = new Float64Array(16);
    //var a = [.0,.0,.0,.0,.0,.0,.0,.0,.0,.0,.0,.0,.0,.0,.0,.0]
    a[0] = 1.2;
    if (a[0] === a[1])
        print('fail');
}
})();

typedarray-length-small.js

(function() {
for(var i=0;i<10000000;i++) {
    var a = new Float64Array(4);
    //var a = [.0,.0,.0,.0]
    a[0] = 1.2;
    if (a[0] === a[1])
        print('fail');
}
})();