Mercurial > hg > config
annotate chrome/report.js @ 204:4dec1e56c677
Bug 689518 - error in pageloader causes talos + e10s to timeout in certain cases. r=bear
author | Joel Maher <jmaher@mozilla.com> |
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date | Tue, 27 Sep 2011 09:29:52 -0400 |
parents | dd0018bc27de |
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rev | line source |
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196
dd0018bc27de
Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* ***** BEGIN LICENSE BLOCK ***** |
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3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
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4 * |
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5 * The contents of this file are subject to the Mozilla Public License Version |
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6 * 1.1 (the "License"); you may not use this file except in compliance with |
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7 * the License. You may obtain a copy of the License at |
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8 * http://www.mozilla.org/MPL/ |
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9 * |
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10 * Software distributed under the License is distributed on an "AS IS" basis, |
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11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
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12 * for the specific language governing rights and limitations under the |
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13 * License. |
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14 * |
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15 * The Original Code is tp. |
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16 * |
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17 * The Initial Developer of the Original Code is |
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18 * Mozilla Corporation. |
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19 * Portions created by the Initial Developer are Copyright (C) 2007 |
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20 * the Initial Developer. All Rights Reserved. |
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21 * |
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22 * Contributor(s): |
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23 * Darin Fisher <darin@meer.net> |
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24 * Rob Helmer <rhelmer@mozilla.com> |
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25 * Vladimir Vukicevic <vladimir@mozilla.com> |
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26 * |
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27 * Alternatively, the contents of this file may be used under the terms of |
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28 * either the GNU General Public License Version 2 or later (the "GPL"), or |
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29 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
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30 * in which case the provisions of the GPL or the LGPL are applicable instead |
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31 * of those above. If you wish to allow use of your version of this file only |
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32 * under the terms of either the GPL or the LGPL, and not to allow others to |
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33 * use your version of this file under the terms of the MPL, indicate your |
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34 * decision by deleting the provisions above and replace them with the notice |
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35 * and other provisions required by the GPL or the LGPL. If you do not delete |
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36 * the provisions above, a recipient may use your version of this file under |
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37 * the terms of any one of the MPL, the GPL or the LGPL. |
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38 * |
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39 * ***** END LICENSE BLOCK ***** */ |
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40 |
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41 // Constructor |
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42 function Report(pages) { |
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43 this.pages = pages; |
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44 this.timeVals = new Array(pages.length); // matrix of times |
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45 for (var i = 0; i < this.timeVals.length; ++i) { |
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46 this.timeVals[i] = new Array(); |
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47 } |
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48 this.totalCCTime = 0; |
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49 this.showTotalCCTime = false; |
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50 } |
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51 |
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52 // given an array of strings, finds the longest common prefix |
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53 function findCommonPrefixLength(strs) { |
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54 if (strs.length < 2) |
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55 return 0; |
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56 |
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57 var len = 0; |
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58 do { |
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59 var newlen = len + 1; |
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60 var newprefix = null; |
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61 var failed = false; |
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62 for (var i = 0; i < strs.length; i++) { |
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63 if (newlen > strs[i].length) { |
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64 failed = true; |
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65 break; |
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66 } |
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67 |
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68 var s = strs[i].substr(0, newlen); |
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69 if (newprefix == null) { |
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70 newprefix = s; |
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71 } else if (newprefix != s) { |
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72 failed = true; |
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73 break; |
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74 } |
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75 } |
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76 |
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77 if (failed) |
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78 break; |
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79 |
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80 len++; |
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81 } while (true); |
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82 return len; |
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83 } |
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84 |
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85 function compareNumbers(a, b) { |
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86 return a - b; |
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87 } |
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88 |
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89 // returns an object with the following properties: |
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90 // min : min value of array elements |
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91 // max : max value of array elements |
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92 // mean : mean value of array elements |
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93 // vari : variance computation |
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94 // stdd : standard deviation, sqrt(vari) |
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95 // indexOfMax : index of max element (the element that is |
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96 // removed from the mean computation) |
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97 function getArrayStats(ary) { |
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98 var r = {}; |
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99 r.min = ary[0]; |
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100 r.max = ary[0]; |
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101 r.indexOfMax = 0; |
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102 var sum = 0; |
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103 for (var i = 0; i < ary.length; ++i) { |
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104 if (ary[i] < r.min) { |
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105 r.min = ary[i]; |
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106 } else if (ary[i] > r.max) { |
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107 r.max = ary[i]; |
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108 r.indexOfMax = i; |
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109 } |
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110 sum = sum + ary[i]; |
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111 } |
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112 |
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113 // median |
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114 if (ary.length > 1) { |
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115 sorted_ary = ary.concat(); |
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116 sorted_ary.sort(compareNumbers); |
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117 // remove longest run |
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118 sorted_ary.pop(); |
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119 if (sorted_ary.length%2) { |
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120 r.median = sorted_ary[(sorted_ary.length-1)/2]; |
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121 }else{ |
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122 var n = Math.floor(sorted_ary.length / 2); |
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123 if (n >= sorted_ary.length) |
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124 r.median = sorted_ary[n]; |
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125 else |
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126 r.median = (sorted_ary[n-1] + sorted_ary[n]) / 2; |
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127 } |
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128 }else{ |
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129 r.median = ary[0]; |
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130 } |
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131 |
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132 // ignore max value when computing mean and stddev |
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133 if (ary.length > 1) |
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134 r.mean = (sum - r.max) / (ary.length - 1); |
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135 else |
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136 r.mean = ary[0]; |
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137 |
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138 r.vari = 0; |
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139 for (var i = 0; i < ary.length; ++i) { |
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140 if (i == r.indexOfMax) |
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141 continue; |
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142 var d = r.mean - ary[i]; |
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143 r.vari = r.vari + d * d; |
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144 } |
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145 |
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146 if (ary.length > 1) { |
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147 r.vari = r.vari / (ary.length - 1); |
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148 r.stdd = Math.sqrt(r.vari); |
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149 } else { |
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150 r.vari = 0.0; |
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151 r.stdd = 0.0; |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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152 } |
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153 return r; |
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154 } |
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155 |
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156 function strPad(o, len, left) { |
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157 var str = o.toString(); |
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158 if (!len) |
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159 len = 6; |
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160 if (left == null) |
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161 left = true; |
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162 |
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163 if (str.length < len) { |
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164 len -= str.length; |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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165 while (--len) { |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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166 if (left) |
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167 str = " " + str; |
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168 else |
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169 str += " "; |
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170 } |
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171 } |
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172 |
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173 str += " "; |
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174 return str; |
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175 } |
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176 |
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177 function strPadFixed(n, len, left) { |
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178 return strPad(n.toFixed(0), len, left); |
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179 } |
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180 |
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|
181 Report.prototype.getReport = function(format) { |
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182 // avg and avg median are cumulative for all the pages |
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183 var avgs = new Array(); |
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184 var medians = new Array(); |
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185 for (var i = 0; i < this.timeVals.length; ++i) { |
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186 avgs[i] = getArrayStats(this.timeVals[i]).mean; |
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187 medians[i] = getArrayStats(this.timeVals[i]).median; |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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188 } |
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189 var avg = getArrayStats(avgs).mean; |
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190 var avgmed = getArrayStats(medians).mean; |
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191 |
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192 var report; |
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193 |
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194 var prefixLen = findCommonPrefixLength(this.pages); |
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195 |
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196 if (format == "js") { |
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197 // output "simple" js format; |
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198 // array of { page: "str", value: 123.4, stddev: 23.3 } objects |
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199 report = "(["; |
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200 for (var i = 0; i < this.timeVals.length; i++) { |
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201 var stats = getArrayStats(this.timeVals[i]); |
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202 report += uneval({ page: this.pages[i].substr(prefixLen), value: stats.mean, stddev: stats.stdd}); |
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203 report += ","; |
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204 } |
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205 report += "])"; |
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206 } else if (format == "jsfull") { |
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207 // output "full" js format, with raw values |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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208 } else if (format == "text") { |
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209 // output text format suitable for dumping |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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210 report = "============================================================\n"; |
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211 report += " " + strPad("Page", 40, false) + strPad("mean") + strPad("stdd") + strPad("min") + strPad("max") + "raw" + "\n"; |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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212 for (var i = 0; i < this.timeVals.length; i++) { |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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213 var stats = getArrayStats(this.timeVals[i]); |
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214 report += |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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215 strPad(i, 4, true) + |
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216 strPad(this.pages[i].substr(prefixLen), 40, false) + |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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217 strPadFixed(stats.mean) + |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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218 strPadFixed(stats.stdd) + |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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219 strPadFixed(stats.min) + |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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|
220 strPadFixed(stats.max) + |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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|
221 this.timeVals[i] + |
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Copy the pageloader from CVS and into a bundle format (single chrome.manifest).
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parents:
diff
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222 "\n"; |
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223 } |
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224 if (this.showTotalCCTime) { |
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225 report += "Cycle collection: " + this.totalCCTime + "\n" |
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226 } |
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227 report += "============================================================\n"; |
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228 } else if (format == "tinderbox") { |
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229 report = "__start_tp_report\n"; |
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230 report += "_x_x_mozilla_page_load,"+avgmed+",NaN,NaN\n"; // max and min are just 0, ignored |
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231 report += "_x_x_mozilla_page_load_details,avgmedian|"+avgmed+"|average|"+avg.toFixed(2)+"|minimum|NaN|maximum|NaN|stddev|NaN\n"; |
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232 report += "|i|pagename|median|mean|min|max|runs|\n"; |
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233 |
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234 for (var i = 0; i < this.timeVals.length; i++) { |
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235 var r = getArrayStats(this.timeVals[i]); |
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236 report += '|'+ |
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237 i + ';'+ |
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238 this.pages[i].substr(prefixLen) + ';'+ |
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239 r.median + ';'+ |
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240 r.mean + ';'+ |
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241 r.min + ';'+ |
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242 r.max + ';'+ |
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243 this.timeVals[i].join(";") + |
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244 "\n"; |
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245 } |
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246 report += "__end_tp_report\n"; |
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247 if (this.showTotalCCTime) { |
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248 report += "__start_cc_report\n"; |
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249 report += "_x_x_mozilla_cycle_collect," + this.totalCCTime + "\n"; |
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250 report += "__end_cc_report\n"; |
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251 } |
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252 var now = (new Date()).getTime(); |
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253 report += "__startTimestamp" + now + "__endTimestamp\n"; //timestamp for determning shutdown time, used by talos |
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254 } else { |
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255 report = "Unknown report format"; |
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256 } |
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257 |
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258 return report; |
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259 } |
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260 |
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261 Report.prototype.recordTime = function(pageIndex, ms) { |
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262 this.timeVals[pageIndex].push(ms); |
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263 } |
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264 |
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265 Report.prototype.recordCCTime = function(ms) { |
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266 this.totalCCTime += ms; |
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267 this.showTotalCCTime = true; |
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268 } |