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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-03-08 13:51:20 +0100
committerIngo Molnar <mingo@elte.hu>2010-03-10 13:22:36 +0100
commitd4944a06666054707d23e11888e480af239e5abf (patch)
tree58d8e847f198c29a2a2ddee60fe862f8973794d1 /kernel/sys.c
parentperf, x86: Fix double enable calls (diff)
downloadlinux-d4944a06666054707d23e11888e480af239e5abf.tar.xz
linux-d4944a06666054707d23e11888e480af239e5abf.zip
perf: Provide better condition for event rotation
Try to avoid useless rotation and PMU disables. [ Could be improved by keeping a nr_runnable count to better account for the < PERF_STAT_INACTIVE counters ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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