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1 /* |
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2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * |
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4 * Redistribution and use in source and binary forms, with or without |
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5 * modification, are permitted provided that the following conditions |
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6 * are met: |
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7 * |
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8 * - Redistributions of source code must retain the above copyright |
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9 * notice, this list of conditions and the following disclaimer. |
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10 * |
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11 * - Redistributions in binary form must reproduce the above copyright |
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12 * notice, this list of conditions and the following disclaimer in the |
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13 * documentation and/or other materials provided with the distribution. |
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14 * |
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15 * - Neither the name of Oracle nor the names of its |
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16 * contributors may be used to endorse or promote products derived |
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17 * from this software without specific prior written permission. |
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18 * |
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19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
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20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
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21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 */ |
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31 |
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32 |
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33 |
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34 function bench(name, func) { |
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35 var start = Date.now(); |
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36 for (var iter = 0; iter < 5e6; iter++) { |
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37 func(); |
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38 } |
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39 print((Date.now() - start) + "\t" + name); |
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40 } |
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41 |
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42 bench("[]", function() { |
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43 []; |
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44 []; |
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45 []; |
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46 }); |
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47 |
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48 bench("[1, 2, 3]", function() { |
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49 [1, 2, 3]; |
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50 [1, 2, 3]; |
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51 [1, 2, 3]; |
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52 }); |
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53 |
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54 bench("[1 .. 20]", function() { |
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55 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; |
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56 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; |
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57 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; |
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58 }); |
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59 |
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60 bench("new Array()", function() { |
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61 new Array(); |
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62 new Array(); |
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63 new Array(); |
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64 }); |
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65 |
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66 |
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67 bench("new Array(1, 2, 3)", function() { |
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68 new Array(1, 2, 3); |
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69 new Array(1, 2, 3); |
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70 new Array(1, 2, 3); |
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71 }); |
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72 |
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73 bench("new Array(10)", function() { |
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74 new Array(10); |
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75 new Array(10); |
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76 new Array(10); |
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77 }); |
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78 |
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79 var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; |
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80 |
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81 bench("get", function() { |
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82 array[0]; |
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83 array[3]; |
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84 array[6]; |
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85 }); |
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86 |
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87 bench("set", function() { |
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88 array[0] = 0; |
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89 array[3] = 3; |
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90 array[6] = 6; |
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91 }); |
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92 |
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93 bench("push", function() { |
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94 var arr = [1, 2, 3]; |
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95 arr.push(4); |
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96 arr.push(5); |
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97 arr.push(6); |
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98 }); |
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99 |
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100 bench("pop", function() { |
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101 var arr = [1, 2, 3]; |
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102 arr.pop(); |
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103 arr.pop(); |
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104 arr.pop(); |
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105 }); |
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106 |
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107 bench("splice", function() { |
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108 [1, 2, 3].splice(0, 2, 5, 6, 7); |
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109 }); |
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110 |
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111 var all = function(e) { return true; }; |
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112 var none = function(e) { return false; }; |
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113 |
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114 bench("filter all", function() { |
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115 array.filter(all); |
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116 }); |
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117 |
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118 bench("filter none", function() { |
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119 array.filter(none); |
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120 }); |
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121 |
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122 var up = function(a, b) { return a > b ? 1 : -1; }; |
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123 var down = function(a, b) { return a < b ? 1 : -1; }; |
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124 |
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125 bench("sort up", function() { |
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126 [1, 2, 3, 4].sort(up); |
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127 }); |
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128 |
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129 bench("sort down", function() { |
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130 [1, 2, 3, 4].sort(down); |
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131 }); |
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132 |