compare.js

// lein cljsbuild once release
// d8 node_modules/immutable/dist/immutable.min.js mori.bare.js ./bench/mut_perf.js
// jsc node_modules/immutable/dist/immutable.min.js mori.bare.js ./bench/mut_perf.js

;(function() {

    function sum(a,b) {
        return a+b;
    }    

    var m = mori;
    var runs = [];

    for(var j = 0; j < 10; j++) {
        var s = new Date();
        var arr = [];
        for(var i = 0; i < 1000000; i++) {
            if(i % 32 == 0) {
                arr.push(Math.random());
            } else {
                arr.push(i);
            }
        }
        var el = (new Date())-s;
        runs.push(el);
        print("Array push " + arr.length + " items " + el + " " + arr.reduce(sum, 0));
    }
    print(runs.reduce(sum,0)/10);

    // runs = [];
    // for(var j = 0; j < 10; j++) {
    //     s = new Date();
    //     var v = m.vector();
    //     for(var i = 0; i < 1000000; i++) {
    //         if(i % 32 === 0) {
    //             v = m.conj1(v, Math.random());
    //         } else {
    //             v = m.conj1(v, i);
    //         }
    //     }
    //     var el = (new Date())-s;
    //     runs.push(el);
    //     print("Persistent vector conj " + m.count(v) + " items " + el + " " + m.reduce(sum,0,v));
    // }
    // print(runs.reduce(sum,0)/10);

    runs = [];
    for(var j = 0; j < 10; j++) {
        s = new Date();
        var mv = m.mutable.thaw(m.vector());
        for(var i = 0; i < 1000000; i++) {
            if(i % 32 === 0) {
                mv = m.mutable.conj1(mv, Math.random());
            } else {
                mv = m.mutable.conj1(mv, i);
            }
        }
        var v = m.mutable.freeze(mv);
        var el = (new Date())-s;
        runs.push(el);
        print("Mutable vector conj " + m.count(v) + " items " + el + " " + m.reduce(sum,0,v));
    }
    print(runs.reduce(sum,0)/10);

    runs = [];
    for(var j = 0; j < 10; j++) {
        s = new Date();
        var l = Immutable.List().withMutations(function(ml) {
            for(var i = 0; i < 1000000; i++) {
                if(i % 32 === 0) {
                    ml.push(Math.random());
                } else {
                    ml.push(i);
                }
            }
        });
        var el = (new Date())-s;
        runs.push(el);
        print("Mutable list push " + l.size + " items " + el + " " + l.reduce(sum, 0));
    }
    print(runs.reduce(sum,0)/10);

})();

// Macbook Pro 2.26ghz, d8 3.29.80
// Array push 1000000 items 225 484375015598.72327
// Array push 1000000 items 182 484375015658.3886
// Array push 1000000 items 106 484375015676.13965
// Array push 1000000 items 192 484375015552.31647
// Array push 1000000 items 214 484375015576.26776
// Array push 1000000 items 213 484375015621.9111
// Array push 1000000 items 232 484375015642.3849
// Array push 1000000 items 285 484375015725.9055
// Array push 1000000 items 252 484375015554.97125
// Array push 1000000 items 227 484375015716.7778
// 212.8
// Mutable vector conj 1000000 items 111 484375015691.779
// Mutable vector conj 1000000 items 70 484375015619.4253
// Mutable vector conj 1000000 items 53 484375015673.2537
// Mutable vector conj 1000000 items 90 484375015680.48517
// Mutable vector conj 1000000 items 65 484375015581.82574
// Mutable vector conj 1000000 items 57 484375015652.67017
// Mutable vector conj 1000000 items 54 484375015679.46674
// Mutable vector conj 1000000 items 66 484375015737.9629
// Mutable vector conj 1000000 items 65 484375015626.65576
// Mutable vector conj 1000000 items 54 484375015650.9963
// 68.5
// Mutable list push 1000000 items 397 484375015660.624
// Mutable list push 1000000 items 378 484375015652.5248
// Mutable list push 1000000 items 430 484375015570.18585
// Mutable list push 1000000 items 378 484375015679.4106
// Mutable list push 1000000 items 374 484375015571.91034
// Mutable list push 1000000 items 431 484375015630.1371
// Mutable list push 1000000 items 361 484375015636.17334
// Mutable list push 1000000 items 371 484375015593.2238
// Mutable list push 1000000 items 372 484375015676.4787
// Mutable list push 1000000 items 372 484375015494.54944
386.4