test/examples/array-micro.js

changeset 0
b1a7da25b547
child 952
6d5471a497fb
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/examples/array-micro.js	Wed Apr 27 01:36:41 2016 +0800
     1.3 @@ -0,0 +1,132 @@
     1.4 +/*
     1.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
     1.6 + * 
     1.7 + * Redistribution and use in source and binary forms, with or without
     1.8 + * modification, are permitted provided that the following conditions
     1.9 + * are met:
    1.10 + * 
    1.11 + *   - Redistributions of source code must retain the above copyright
    1.12 + *     notice, this list of conditions and the following disclaimer.
    1.13 + * 
    1.14 + *   - Redistributions in binary form must reproduce the above copyright
    1.15 + *     notice, this list of conditions and the following disclaimer in the
    1.16 + *     documentation and/or other materials provided with the distribution.
    1.17 + * 
    1.18 + *   - Neither the name of Oracle nor the names of its
    1.19 + *     contributors may be used to endorse or promote products derived
    1.20 + *     from this software without specific prior written permission.
    1.21 + * 
    1.22 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
    1.23 + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    1.24 + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    1.25 + * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
    1.26 + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    1.27 + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    1.28 + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    1.29 + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    1.30 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    1.31 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    1.32 + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.33 + */
    1.34 +
    1.35 +
    1.36 +
    1.37 +function bench(name, func) {
    1.38 +    var start = Date.now();
    1.39 +    for (var iter = 0; iter < 5e6; iter++) {
    1.40 +        func();
    1.41 +    }
    1.42 +    print((Date.now() - start) + "\t" + name);
    1.43 +}
    1.44 +
    1.45 +bench("[]", function() {
    1.46 +    [];
    1.47 +    [];
    1.48 +    [];
    1.49 +});
    1.50 +
    1.51 +bench("[1, 2, 3]", function() {
    1.52 +    [1, 2, 3];
    1.53 +    [1, 2, 3];
    1.54 +    [1, 2, 3];
    1.55 +});
    1.56 +
    1.57 +bench("[1 .. 20]", function() {
    1.58 +    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
    1.59 +    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
    1.60 +    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
    1.61 +});
    1.62 +
    1.63 +bench("new Array()", function() {
    1.64 +    new Array();
    1.65 +    new Array();
    1.66 +    new Array();
    1.67 +});
    1.68 +
    1.69 +
    1.70 +bench("new Array(1, 2, 3)", function() {
    1.71 +    new Array(1, 2, 3);
    1.72 +    new Array(1, 2, 3);
    1.73 +    new Array(1, 2, 3);
    1.74 +});
    1.75 +
    1.76 +bench("new Array(10)", function() {
    1.77 +    new Array(10);
    1.78 +    new Array(10);
    1.79 +    new Array(10);
    1.80 +});
    1.81 +
    1.82 +var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
    1.83 +
    1.84 +bench("get", function() {
    1.85 +    array[0];
    1.86 +    array[3];
    1.87 +    array[6];
    1.88 +});
    1.89 +
    1.90 +bench("set", function() {
    1.91 +    array[0] = 0;
    1.92 +    array[3] = 3;
    1.93 +    array[6] = 6;
    1.94 +});
    1.95 +
    1.96 +bench("push", function() {
    1.97 +    var arr = [1, 2, 3];
    1.98 +    arr.push(4);
    1.99 +    arr.push(5);
   1.100 +    arr.push(6);
   1.101 +});
   1.102 +
   1.103 +bench("pop", function() {
   1.104 +    var arr = [1, 2, 3];
   1.105 +    arr.pop();
   1.106 +    arr.pop();
   1.107 +    arr.pop();
   1.108 +});
   1.109 +
   1.110 +bench("splice", function() {
   1.111 +    [1, 2, 3].splice(0, 2, 5, 6, 7);
   1.112 +});
   1.113 +
   1.114 +var all = function(e) { return true; };
   1.115 +var none = function(e) { return false; };
   1.116 +
   1.117 +bench("filter all", function() {
   1.118 +    array.filter(all);
   1.119 +});
   1.120 +
   1.121 +bench("filter none", function() {
   1.122 +    array.filter(none);
   1.123 +});
   1.124 +
   1.125 +var up = function(a, b) { return a > b ? 1 : -1; };
   1.126 +var down = function(a, b) { return a < b ? 1 : -1; };
   1.127 +
   1.128 +bench("sort up", function() {
   1.129 +    [1, 2, 3, 4].sort(up);
   1.130 +});
   1.131 +
   1.132 +bench("sort down", function() {
   1.133 +    [1, 2, 3, 4].sort(down);
   1.134 +});
   1.135 +

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