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| author |   Andrew Vagin <avagin@openvz.org> | 2011-11-28 12:03:35 +0300 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2011-12-06 08:51:23 +0100 |
| commit | b781a602ac745ee3d5d745276f1e1905a2c101f9 (patch) | |
| tree | bae4134842fba8c0e8ab22a205b73f21eba6c1d4 /include/trace | |
| parent | sched: Move all scheduler bits into kernel/sched/ (diff) | |
| download | linux-dev-b781a602ac745ee3d5d745276f1e1905a2c101f9.tar.xz linux-dev-b781a602ac745ee3d5d745276f1e1905a2c101f9.zip | |
events, sched: Add tracepoint for accounting blocked time
This tracepoint shows how long a task is sleeping in uninterruptible state.
E.g. it may show how long and where a mutex is waited for.
Signed-off-by: Andrew Vagin <avagin@openvz.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1322471015-107825-8-git-send-email-avagin@openvz.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/sched.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index 959ff18b63b6..e33ed1bfa113 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -331,6 +331,13 @@ DEFINE_EVENT(sched_stat_template, sched_stat_iowait, TP_ARGS(tsk, delay)); /* + * Tracepoint for accounting blocked time (time the task is in uninterruptible). + */ +DEFINE_EVENT(sched_stat_template, sched_stat_blocked, + TP_PROTO(struct task_struct *tsk, u64 delay), + TP_ARGS(tsk, delay)); + +/* * Tracepoint for accounting runtime (time the task is executing * on a CPU). */ |