perf: Optimize the hotpath by converting the perf output buffer to local_t

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Since there is now only a single writer, we can use
local_t instead and avoid all these pesky LOCK insn.

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 2010-05-18 10:54:20 +02:00 • committed by Ingo Molnar

parent ef60777c9a

commit fa5881514e

2 changed files with 22 additions and 23 deletions

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15

include/linux/perf_event.h

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