perf_counter: Do not throttle single swcounter events

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We can have swcounter events that contribute more than a single
count per event, when used with a non-zero period, those can
generate multiple events, which is when we need throttling.

However, swcounter that contribute only a single count per event
can only come as fast as we can run code, hence don't throttle
them.

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

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Peter Zijlstra 2009-09-17 18:47:11 +02:00 • committed by Ingo Molnar

parent 0ec04e16d0

commit 850bc73ffc

1 changed files with 13 additions and 4 deletions

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kernel/perf_counter.c

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