Kraken Info

This info is for Kraken 1.0.

ai-astar

A toy benchmark. A path-finding program that uses A* search.

Key features. The benchmark spends almost all of its time in the loop in the following function.

Array.prototype.findGraphNode = function(obj) {
    for(var i=0;i<this.length;i++) {
        if(this[i].pos == obj.pos) { return this[i]; }
    }
    return false;
};

Mozilla-specific things. The above loop is traced and accounts for roughly 95% of execution time.

audio-beat-detection

Key features. Overwrites holes in arrays a lot.

audio-fft

Mozilla-specific things. Judging from the Cachegrind results, it's almost identical to audio-beat-detection.

audio-oscillator

== imaging-gaussian-blur --

json-stringify-tinderbox

A microbenchmark. Calls JSON.stringify() 1000 times on an object that takes up over 450,000 chars to express in a file.

Key features. The result of the call to JSON.stringify() is never used, so this benchmark is susceptible to gaming -- an implementation could detect that the result isn't used and call a faster version of JSON.stringify() that doesn't build the result (ie. an empty function).