Oprofile: Difference between revisions
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John Levon's masters project makes use of performance-analysis [[MSR]]'s and a kernel module to provide awesome profiling capabilities on the [[Linux]] platform. A more recent alternative is Ingo Molnar's [[perf]]. | John Levon's masters project makes use of performance-analysis [[MSR]]'s and a kernel module to provide awesome profiling capabilities on the [[Linux]] platform. A more recent alternative is Ingo Molnar's [[perf]]. | ||
Each processor has a [[ | Each processor has a [[Performance Counters|set of events]] it collects (there might also be generic events '''FIXME'''), recoverable with <tt>opcontrol --list-events</tt>:<pre>[atlx-swps-ux-pol02](0) $ opcontrol --list-events | ||
oprofile: available events for CPU type "Core 2" | oprofile: available events for CPU type "Core 2" | ||
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Number of downward prefetches issued (min count: 3000) | Number of downward prefetches issued (min count: 3000) | ||
[atlx-swps-ux-pol02](0) $ </pre> | [atlx-swps-ux-pol02](0) $ </pre> | ||
==See also== | ==See also== | ||
* Main [http://oprofile.sourceforge.net/news/ Oprofile] page | * Main [http://oprofile.sourceforge.net/news/ Oprofile] page | ||