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events, sched: Add tracepoint for accounting blocked time
authorAndrew Vagin <avagin@openvz.org>
Mon, 28 Nov 2011 09:03:35 +0000 (12:03 +0300)
committerIngo Molnar <mingo@elte.hu>
Tue, 6 Dec 2011 07:51:23 +0000 (08:51 +0100)
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>

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