Messages in this thread Patch in this message | | | Date | Fri, 25 Jan 2008 23:22:09 -0500 | From | Steven Rostedt <> | Subject | [PATCH 17/23 -v6] Add marker in try_to_wake_up |
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Add markers into the wakeup code, to allow the tracer to record wakeup timings.
Signed-off-by: Steven Rostedt <srostedt@redhat.com> --- kernel/sched.c | 8 ++++++++ 1 file changed, 8 insertions(+)
Index: linux-mcount.git/kernel/sched.c =================================================================== --- linux-mcount.git.orig/kernel/sched.c 2008-01-25 21:47:21.000000000 -0500 +++ linux-mcount.git/kernel/sched.c 2008-01-25 21:47:30.000000000 -0500 @@ -1885,6 +1885,10 @@ static int try_to_wake_up(struct task_st out_activate: #endif /* CONFIG_SMP */ + trace_mark(kernel_sched_wakeup, + "p %p rq->curr %p", + p, rq->curr); + schedstat_inc(p, se.nr_wakeups); if (sync) schedstat_inc(p, se.nr_wakeups_sync); @@ -2026,6 +2030,10 @@ void fastcall wake_up_new_task(struct ta p->sched_class->task_new(rq, p); inc_nr_running(p, rq); } + trace_mark(kernel_sched_wakeup_new, + "p %p rq->curr %p", + p, rq->curr); + check_preempt_curr(rq, p); #ifdef CONFIG_SMP if (p->sched_class->task_wake_up) --
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