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sched: introduce avg_wakeup

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Introduce a new avg_wakeup statistic.

avg_wakeup is a measure of how frequently a task wakes up other tasks, it
represents the average time between wakeups, with a limit of avg_runtime
for when it doesn't wake up anybody.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2009-01-14 12:39:18 +01:00 • committed by Ingo Molnar
parent a6525042bf
commit 831451ac4e
3 changed files with 34 additions and 6 deletions
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1
kernel/sched_debug.c
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@ -397,6 +397,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
PN(se.vruntime);
PN(se.sum_exec_runtime);
PN(se.avg_overlap);
PN(se.avg_wakeup);
nr_switches = p->nvcsw + p->nivcsw;