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(parent: 4979d27) | patch
perf: Optimize throttling code
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 16 Feb 2011 10:22:34 +0000 (11:22 +0100)
committerIngo Molnar <mingo@elte.hu>
Wed, 16 Feb 2011 12:30:55 +0000 (13:30 +0100)
commit163ec4354a5135c6c38c3f4a9b46a31900ebdf48
tree59063e726453ace397c66d95cab09ac43265be41tree | snapshot
parent4979d2729af22f6ce8faa325fc60a85a2c2daa02commit | diff
perf: Optimize throttling code

By pre-computing the maximum number of samples per tick we can avoid a
multiplication and a conditional since MAX_INTERRUPTS >
max_samples_per_tick.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
include/linux/perf_event.h diff | blob | history
kernel/perf_event.c diff | blob | history
kernel/sysctl.c diff | blob | history
Domain: System / Uncategorized;