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| author | Ingo Molnar <mingo@elte.hu> | 2011-04-24 08:18:31 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-26 20:04:53 +0200 |
| commit | 94403f8863d0d1d2005291b2ef0719c2534aa303 (patch) | |
| tree | b0c8d9cf3ce49bf9faadcf5564e9996d0090b5c8 /tools/perf | |
| parent | 7bd5fafeb414cf00deee32c82834f8bf1426b9ac (diff) | |
| download | lwn-94403f8863d0d1d2005291b2ef0719c2534aa303.tar.gz lwn-94403f8863d0d1d2005291b2ef0719c2534aa303.zip | |
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 'tools/perf')
| -rw-r--r-- | tools/perf/util/parse-events.c | 1 | ||||
| -rw-r--r-- | tools/perf/util/python.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 952b4ae3d954..1869e4c646db 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -38,6 +38,7 @@ static struct event_symbol event_symbols[] = { { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" }, { CHW(BRANCH_MISSES), "branch-misses", "" }, { CHW(BUS_CYCLES), "bus-cycles", "" }, + { CHW(STALLED_CYCLES), "stalled-cycles", "" }, { CSW(CPU_CLOCK), "cpu-clock", "" }, { CSW(TASK_CLOCK), "task-clock", "" }, diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index f5e38451fdc5..406f613ee619 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -798,6 +798,7 @@ static struct { { "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS }, { "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES }, { "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES }, + { "COUNT_HW_STALLED_CYCLES", PERF_COUNT_HW_STALLED_CYCLES }, { "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D }, { "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I }, { "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL }, |