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| 1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> | 1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| 2 <HTML> | 2 <HTML> |
| 3 | 3 |
| 4 <HEAD> | 4 <HEAD> |
| 5 <link rel="stylesheet" href="designstyle.css"> | 5 <link rel="stylesheet" href="designstyle.css"> |
| 6 <title>Google Heap Profiler</title> | 6 <title>Gperftools Heap Profiler</title> |
| 7 </HEAD> | 7 </HEAD> |
| 8 | 8 |
| 9 <BODY> | 9 <BODY> |
| 10 | 10 |
| 11 <p align=right> | 11 <p align=right> |
| 12 <i>Last modified | 12 <i>Last modified |
| 13 <script type=text/javascript> | 13 <script type=text/javascript> |
| 14 var lm = new Date(document.lastModified); | 14 var lm = new Date(document.lastModified); |
| 15 document.write(lm.toDateString()); | 15 document.write(lm.toDateString()); |
| 16 </script></i> | 16 </script></i> |
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| 59 <p>There are several alternatives to actually turn on heap profiling | 59 <p>There are several alternatives to actually turn on heap profiling |
| 60 for a given run of an executable:</p> | 60 for a given run of an executable:</p> |
| 61 | 61 |
| 62 <ol> | 62 <ol> |
| 63 <li> <p>Define the environment variable HEAPPROFILE to the filename | 63 <li> <p>Define the environment variable HEAPPROFILE to the filename |
| 64 to dump the profile to. For instance, to profile | 64 to dump the profile to. For instance, to profile |
| 65 <code>/usr/local/bin/my_binary_compiled_with_tcmalloc</code>:</p> | 65 <code>/usr/local/bin/my_binary_compiled_with_tcmalloc</code>:</p> |
| 66 <pre>% env HEAPPROFILE=/tmp/mybin.hprof /usr/local/bin/my_binary_compiled
_with_tcmalloc</pre> | 66 <pre>% env HEAPPROFILE=/tmp/mybin.hprof /usr/local/bin/my_binary_compiled
_with_tcmalloc</pre> |
| 67 <li> <p>In your code, bracket the code you want profiled in calls to | 67 <li> <p>In your code, bracket the code you want profiled in calls to |
| 68 <code>HeapProfilerStart()</code> and <code>HeapProfilerStop()</code>. | 68 <code>HeapProfilerStart()</code> and <code>HeapProfilerStop()</code>. |
| 69 (These functions are declared in <code><google/heap-profiler.h></co
de>.) | 69 (These functions are declared in <code><gperftools/heap-profiler.h>
</code>.) |
| 70 <code>HeapProfilerStart()</code> will take the | 70 <code>HeapProfilerStart()</code> will take the |
| 71 profile-filename-prefix as an argument. Then, as often as | 71 profile-filename-prefix as an argument. Then, as often as |
| 72 you'd like before calling <code>HeapProfilerStop()</code>, you | 72 you'd like before calling <code>HeapProfilerStop()</code>, you |
| 73 can use <code>HeapProfilerDump()</code> or | 73 can use <code>HeapProfilerDump()</code> or |
| 74 <code>GetHeapProfile()</code> to examine the profile. In case | 74 <code>GetHeapProfile()</code> to examine the profile. In case |
| 75 it's useful, <code>IsHeapProfilerRunning()</code> will tell you | 75 it's useful, <code>IsHeapProfilerRunning()</code> will tell you |
| 76 whether you've already called HeapProfilerStart() or not.</p> | 76 whether you've already called HeapProfilerStart() or not.</p> |
| 77 </ol> | 77 </ol> |
| 78 | 78 |
| 79 | 79 |
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| 364 name, just set prepend <code>./</code> to your filename: | 364 name, just set prepend <code>./</code> to your filename: |
| 365 <code>HEAPPROFILE=./Ägypten</code>. | 365 <code>HEAPPROFILE=./Ägypten</code>. |
| 366 </ul> | 366 </ul> |
| 367 | 367 |
| 368 <hr> | 368 <hr> |
| 369 <address>Sanjay Ghemawat | 369 <address>Sanjay Ghemawat |
| 370 <!-- Created: Tue Dec 19 10:43:14 PST 2000 --> | 370 <!-- Created: Tue Dec 19 10:43:14 PST 2000 --> |
| 371 </address> | 371 </address> |
| 372 </body> | 372 </body> |
| 373 </html> | 373 </html> |
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Chromium Code Reviews
Issue 9316021:
Update the tcmalloc vendor branch to r144 (gperftools 2.0). (Closed)
Base URL: http://git.chromium.org/git/chromium.git@trunk