perf_counter: hrtimer based sampling for software time events

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Use hrtimers to profile timer based sampling for the software time
counters.

This allows platforms without hardware counter support to still
perform sample based profiling.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2009-03-13 12:21:35 +01:00 • committed by Ingo Molnar

parent ac17dc8e58

commit d6d020e995

2 changed files with 100 additions and 43 deletions

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20

include/linux/perf_counter.h

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123

kernel/perf_counter.c

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