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 <link rel="stylesheet" href="chrome://memory-redirect/about_memory.css"> 11 <style> 12 body { 13 font-family: Helvetica, sans-serif; 14 } 15 div#header select { 16 font-family: Helvetica, sans-serif; 17 } 18 div.otherbrowsers { 19 font-family: Helvetica, sans-serif; 20 } 21 table.list#browserComparison tr:not([class*='firstRow']) > *:nth-child(1), 22 table.list#browserComparison tr:not([class*='firstRow']) > *:nth-child(6), 23 table.list#browserComparison tr.firstRow th:nth-child(1) { 24 border-right: 1px solid #b5c6de; 25 } 26 table.list#memoryDetails tr:not([class*='firstRow']) > *:nth-child(2), 27 table.list#memoryDetails tr:not([class*='firstRow']) > *:nth-child(7), 28 table.list#memoryDetails tr.firstRow th:nth-child(2) { 29 border-right: 1px solid #b5c6de; 30 } 31 </style> 32 <script src="chrome://resources/js/load_time_data.js"></script> 33 <script src="chrome://memory-redirect/memory.js"></script> 34 <script src="chrome://memory-redirect/strings.js"></script> 35 </head> 36 <body> 37 <div id="header"> 38 <h1> 39 About memory 40 </h1> 41 <p> 42 Measuring memory usage in a multi-process browser 43 </p> 44 </div> 45 46 <div id="content"> 47 <h2> 48 Summary 49 <div class="help"> 50 <div> 51 <p> 52 Summary of memory used by currently active browsers.<p> 53 For Chromium, processes used to to display diagnostics 54 information (such as this "about:memory") are excluded. 55 </p> 56 </div> 57 </div> 58 </h2> 59 60 <table class="list" id="browserComparison"> 61 <colgroup> 62 <col class="name"> 63 <col class="number"> 64 <col class="number"> 65 <col class="number"> 66 <col class="number"> 67 </colgroup> 68 <tr class="firstRow doNotFilter"> 69 <th> 70 </th> 71 <th colspan="4"> 72 Memory 73 <div class="help"> 74 <div> 75 <p> 76 <strong>Memory</strong> 77 </p> 78 <p> 79 <strong>Resident:</strong> 80 Amount of memory that is present in physical RAM. 81 This is the best indicator of browser memory resource usage. 82 </p> 83 <p> 84 <strong>Shared:</strong> 85 Amount of memory that is present in physical RAM and can 86 be shared with another process. 87 </p> 88 <p> 89 <strong>Private:</strong> 90 Amount of memory that is present in physical RAM and can not 91 be shared with another process. 92 </p> 93 <p> 94 <strong>Virtual:</strong> 95 Amount of address space allocated in virtual memory. 96 </p> 97 98 <p> 99 <i>(Note that the memory for this tab is not included in the browser totals.)</i> 100 </p> 101 </div> 102 </div> 103 </th> 104 </tr> 105 <tr class="secondRow doNotFilter"> 106 <th class="name"> 107 Browser 108 </th> 109 <th class="number"> 110 Resident 111 </th> 112 <th class="number"> 113 Shared 114 </th> 115 <th class="number"> 116 Private 117 </th> 118 <th class="number"> 119 Virtual 120 </th> 121 </tr> 122 <tr jsselect="browsers"> 123 <td class="name"> 124 <div> 125 <strong jscontent="name"></strong> <span jscontent="version"></span> 126 </div> 127 </td> 128 <td class="number"> 129 <span class="th" jscontent="formatNumber(ws_shareable)"></span><span class="k">k</span> 130 </td> 131 <td class="number"> 132 <span class="th" jscontent="formatNumber(ws_shared)"></span><span class="k">k</span> 133 </td> 134 <td class="number"> 135 <span class="th" jscontent="formatNumber(ws_priv)"></span><span class="k">k</span> 136 </td> 137 <td class="number"> 138 <span class="th" jscontent="formatNumber(comm_priv)"></span><span class="k">k</span> 139 </td> 140 </tr> 141 </table> 142 <div class="otherbrowsers" jsdisplay="browsers.length == 1"> 143 Note: This page will show memory use for all running browsers, 144 not just Chrome. 145 </div> 146 <div class="otherbrowsers" jsdisplay="browsers.length > 1"> 147 Note: Chrome includes memory used by plug-ins, other browsers may not. 148 </div> 149 <div class="otherbrowsers"> 150 (Bug: We seriously overcount our own memory usage: <a href="http://crbug.com/25454">Issue 25454</a>.) 151 </div> 152 153 <br><br><br> 154 155 <h2> 156 Processes 157 <div class="help"> 158 <div> 159 <p> 160 Details of memory usage for each of Chromium's processes. 161 </p> 162 </div> 163 </div> 164 </h2> 165 166 <table class="list" id="memoryDetails"> 167 <colgroup> 168 <col class="pid"> 169 <col class="name"> 170 <col class="number"> 171 <col class="number"> 172 <col class="number"> 173 <col class="number"> 174 </colgroup> 175 <tr class="firstRow doNotFilter"> 176 <th> 177 </th> 178 <th> 179 </th> 180 <th colspan="4"> 181 Memory 182 </th> 183 </tr> 184 <tr class="secondRow doNotFilter"> 185 <th class="pid"> 186 PID 187 </th> 188 <th class="name"> 189 Name 190 </th> 191 <th class="number"> 192 Resident 193 </th> 194 <th class="number"> 195 Shared 196 </th> 197 <th class="number"> 198 Private 199 </th> 200 <th class="number"> 201 Virtual 202 </th> 203 </tr> 204 205 <tr jsselect="browzr_data"> 206 <td class="pid"> 207 <span class="th" jscontent="pid"></span> 208 </td> 209 <td class="name"> 210 <div> 211 Browser 212 </div> 213 </td> 214 <td class="number"> 215 <span class="th" jscontent="formatNumber(ws_shareable)"></span><span class="k">k</span> 216 </td> 217 <td class="number"> 218 <span class="th" jscontent="formatNumber(ws_shared)"></span><span class="k">k</span> 219 </td> 220 <td class="number"> 221 <span class="th" jscontent="formatNumber(ws_priv)"></span><span class="k">k</span> 222 </td> 223 <td class="number"> 224 <span class="th" jscontent="formatNumber(comm_priv)"></span><span class="k">k</span> 225 </td> 226 </tr> 227 <tr jsselect="child_data"> 228 <td class="pid"> 229 <span class="th" jscontent="pid"></span> 230 </td> 231 <td class="name"> 232 <div jscontent="child_name"></div> 233 <div jsselect="titles"> 234 <span jscontent="$this"></span><br> 235 </div> 236 </td> 237 <td class="number"> 238 <span class="th" jscontent="formatNumber(ws_shareable)"></span><span class="k">k</span> 239 </td> 240 <td class="number"> 241 <span class="th" jscontent="formatNumber(ws_shared)"></span><span class="k">k</span> 242 </td> 243 <td class="number"> 244 <span class="th" jscontent="formatNumber(ws_priv)"></span><span class="k">k</span> 245 </td> 246 <td class="number"> 247 <span class="th" jscontent="formatNumber(comm_priv)"></span><span class="k">k</span> 248 </td> 249 </tr> 250 251 <tr class="noResults"> 252 <td colspan="99"> 253 No results found. 254 </td> 255 </tr> 256 </table> 257 <div class="otherbrowsers"> 258 (Note: Due to memory sharing between processes, summing memory usage does not give total memory usage.) 259 </div> 260 </div> 261 <script src="chrome://resources/js/jstemplate_compiled.js"></script> 262 </body> 263 </html> 264
