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| author | Ingo Molnar <mingo@elte.hu> | 2009-09-16 13:45:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-16 11:48:05 +0200 |
| commit | dc02bf7178c8e2cb3d442ae19027b736d51c7dd5 (patch) | |
| tree | 08e66e825e88e63e6b913245f02bc5c4c6358f83 /tools/perf/util | |
| parent | 39aeb52f99f2380c1f16036deed2f7bb8b2e0559 (diff) | |
| download | linux-dc02bf7178c8e2cb3d442ae19027b736d51c7dd5.tar.gz linux-dc02bf7178c8e2cb3d442ae19027b736d51c7dd5.tar.bz2 linux-dc02bf7178c8e2cb3d442ae19027b736d51c7dd5.zip | |
perf sched: Account for lost events, increase default buffering
Output such lost event and state machine weirdness stats:
TOTAL: | 14974.910 ms | 46384 |
---------------------------------------------------
INFO: 8.865% lost events (19132 out of 215819, in 8 chunks)
INFO: 0.198% state machine bugs (49 out of 24708) (due to lost events?)
And increase buffering to -m 1024 (4 MB) by default. Since we
use output multiplexing that kind of space is needed.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/event.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index fa2d4e91d329..2495529cae7d 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -52,7 +52,7 @@ struct lost_event { */ struct read_event { struct perf_event_header header; - u32 pid,tid; + u32 pid, tid; u64 value; u64 time_enabled; u64 time_running; |