sched/tracing: Allow tracing the preemption decision on wakeup

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Thomas noted that we do the wakeup preemption check after the
wakeup trace point, this means the tracepoint cannot test/report
this decision; which is rather important for latency sensitive
workloads. Therefore move the tracepoint after doing the
preemption check.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Paul Turner <pjt@google.com>
Cc: Mike Galbraith <efault@gmx.de>
Link: http://lkml.kernel.org/r/1363254519.26965.9.camel@laptop
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Peter Zijlstra 2013-03-14 10:48:39 +01:00 • committed by Ingo Molnar

parent e75c8b475e

commit a8d7ad52a7

1 changed files with 1 additions and 1 deletions

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kernel/sched/core.c

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