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authorIngo Molnar <mingo@elte.hu>2011-04-24 08:18:31 +0200
committerIngo Molnar <mingo@elte.hu>2011-04-26 20:04:53 +0200
commit94403f8863d0d1d2005291b2ef0719c2534aa303 (patch)
treeb0c8d9cf3ce49bf9faadcf5564e9996d0090b5c8 /include/linux/perf_event.h
parent7bd5fafeb414cf00deee32c82834f8bf1426b9ac (diff)
downloadop-kernel-dev-94403f8863d0d1d2005291b2ef0719c2534aa303.zip
op-kernel-dev-94403f8863d0d1d2005291b2ef0719c2534aa303.tar.gz
perf events: Add stalled cycles generic event - PERF_COUNT_HW_STALLED_CYCLES
The new PERF_COUNT_HW_STALLED_CYCLES event tries to approximate cycles the CPU does nothing useful, because it is stalled on a cache-miss or some other condition. Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: http://lkml.kernel.org/n/tip-fue11vymwqsoo5to72jxxjyl@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/perf_event.h')
-rw-r--r--include/linux/perf_event.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index ee9f1e7..ac636dd 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -52,6 +52,7 @@ enum perf_hw_id {
PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4,
PERF_COUNT_HW_BRANCH_MISSES = 5,
PERF_COUNT_HW_BUS_CYCLES = 6,
+ PERF_COUNT_HW_STALLED_CYCLES = 7,
PERF_COUNT_HW_MAX, /* non-ABI */
};
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