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authorAndrew Vagin <avagin@openvz.org>2011-11-28 12:03:35 +0300
committerIngo Molnar <mingo@elte.hu>2011-12-06 08:51:23 +0100
commitb781a602ac745ee3d5d745276f1e1905a2c101f9 (patch)
treebae4134842fba8c0e8ab22a205b73f21eba6c1d4 /include/trace
parent391e43da797a96aeb65410281891f6d0b0e9611c (diff)
downloadlinux-linaro-stable-b781a602ac745ee3d5d745276f1e1905a2c101f9.tar.gz
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.h7
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).
*/