1 <!DOCTYPE HTML> 2 3 <!-- 4 about:memory template page 5 --> 6 <html id="t"> 7 <head> 8 <meta charset="utf-8"> 9 <title>About Memory</title> 10 <if expr="is_android"> 11 <meta name="viewport" content="width=device-width"> 12 </if> 13 <link rel="stylesheet" href="chrome://memory-redirect/about_memory.css"> 14 <link rel="stylesheet" href="about_memory_linux.css"> 15 <script src="chrome://resources/js/load_time_data.js"></script> 16 <script src="chrome://memory-redirect/memory.js"></script> 17 <script src="chrome://memory-redirect/strings.js"></script> 18 </head> 19 <body i18n-values=".style.fontFamily:fontfamily;.style.fontSize:fontsize"> 20 <div id="header"> 21 <h1> 22 About memory 23 </h1> 24 <p> 25 Measuring memory usage in a multi-process browser 26 </p> 27 </div> 28 29 <div id="content"> 30 <h2> 31 Summary 32 <div class="help"> 33 <div> 34 <p class="summary-desc" i18n-values=".innerHTML:summary_desc"></p> 35 </div> 36 </div> 37 </h2> 38 39 <table class="list" id="browserComparison"> 40 <colgroup> 41 <col class="name"> 42 <col class="number"> 43 <col class="number"> 44 </colgroup> 45 <tr class="firstRow doNotFilter"> 46 <th> 47 </th> 48 <th colspan="2"> 49 Memory 50 <div class="help"> 51 <div> 52 <p> 53 <strong>Memory</strong> 54 </p> 55 <p> 56 <strong>Private:</strong> 57 Resident memory size that is not shared with any other process. 58 This is the best indicator of browser memory resource usage. 59 </p> 60 <p> 61 <strong>Proportional:</strong> 62 Accounts for each page of memory as a fraction based on the number of 63 processes that have it mapped. Thus, for each page of memory mapped by two 64 processes, this sum will count half of the bytes towards each. 65 Therefore, this number is greater than the private count. 66 </p> 67 68 <p><i>(Note that the memory for this tab is not included in the browser totals)</i></p> 69 </div> 70 </div> 71 </th> 72 </tr> 73 <tr class="secondRow doNotFilter"> 74 <th class="name"> 75 Browser 76 </th> 77 <th class="name"> 78 Private 79 </th> 80 <th class="number"> 81 Proportional 82 </th> 83 </tr> 84 <tr jsselect="browsers"> 85 <td class="name"> 86 <div> 87 <strong jscontent="name"></strong> <span jscontent="version"></span> 88 </div> 89 </td> 90 <td class="number"> 91 <span class="th" jscontent="formatNumber(ws_priv)"></span><span class="k">k</span> 92 </td> 93 <td class="number"> 94 <span class="th" jscontent="formatNumber(ws_shared)"></span><span class="k">k</span> 95 </td> 96 </tr> 97 </table> 98 <div class="otherbrowsers" 99 jsdisplay="show_other_browsers && browsers.length == 1"> 100 Note: This page will show memory use for all running browsers, 101 not just Chrome. 102 </div> 103 <div class="otherbrowsers" 104 jsdisplay="show_other_browsers && browsers.length > 1"> 105 Note: Chrome includes memory used by plug-ins, other browsers may not. 106 </div> 107 108 <br><br><br> 109 110 <h2> 111 Processes 112 <div class="help"> 113 <div> 114 <p> 115 Details of memory usage for each of Chromium's processes. 116 </p> 117 </div> 118 </div> 119 </h2> 120 121 <table class="list" id="memoryDetails"> 122 <colgroup> 123 <col class="pid"> 124 <col class="name" > 125 <col class="number"> 126 <col class="number"> 127 </colgroup> 128 <tr class="firstRow doNotFilter"> 129 <th> 130 </th> 131 <th> 132 </th> 133 <th colspan="2"> 134 Memory 135 </th> 136 </tr> 137 <tr class="secondRow doNotFilter"> 138 <th class="pid"> 139 PID 140 </th> 141 <th class="name"> 142 Name 143 </th> 144 <th class="number"> 145 Private 146 </th> 147 <th class="number"> 148 Proportional 149 </th> 150 </tr> 151 152 <tr jsselect="browzr_data"> 153 <td class="pid"> 154 <span class="th" jscontent="pid"></span> 155 </td> 156 <td class="name"> 157 <div> 158 Browser 159 </div> 160 </td> 161 <td class="number"> 162 <span class="th" jseval="addToSum('tot_ws_priv', $this.ws_priv)" jscontent="formatNumber(ws_priv)"></span><span class="k">k</span> 163 </td> 164 <td class="number"> 165 <span class="th" jscontent="formatNumber(ws_shared)"></span><span class="k">k</span> 166 </td> 167 </tr> 168 <tr jsselect="child_data"> 169 <td class="pid"> 170 <span class="th" jscontent="pid"></span> 171 </td> 172 <td class="name"> 173 <div jscontent="child_name"></div> 174 <div jsselect="titles"> 175 <span jscontent="$this"></span><br> 176 </div> 177 </td> 178 <td class="number"> 179 <span class="th" jseval="addToSum('tot_ws_priv', $this.ws_priv)" jscontent="formatNumber(ws_priv)"></span><span class="k">k</span> 180 </td> 181 <td class="number"> 182 <span class="th" jscontent="formatNumber(ws_shared)"></span><span class="k">k</span> 183 </td> 184 </tr> 185 <tr class="total doNotFilter"> 186 <td class="pid"> 187 </td> 188 <td class="name"> 189 Σ 190 </td> 191 <td class="number"> 192 <span class="th" id="tot_ws_priv">0</span><span class="k">k</span> 193 </td> 194 <td class="number"> 195 </td> 196 </tr> 197 198 <tr class="noResults"> 199 <td colspan="99"> 200 No results found. 201 </td> 202 </tr> 203 </table> 204 205 <div class="otherbrowsers">(The memory usage of our renderer processes is slightly less accurate when they are sandboxed.)</div> 206 207 </div> 208 <script src="chrome://resources/js/i18n_template2.js"></script> 209 <script src="chrome://resources/js/jstemplate_compiled.js"></script> 210 </body> 211 </html> 212
