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sched: debug: track maximum 'slice'

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track the maximum amount of time a task has executed while
the CPU load was at least 2x. (i.e. at least two nice-0
tasks were runnable)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar
2007-10-15 17:00:02 +02:00
parent a4b29ba2f7
commit eba1ed4b7e
4 changed files with 15 additions and 0 deletions
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2
kernel/sched_debug.c
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@@ -254,6 +254,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
P(se.sleep_max);
P(se.block_max);
P(se.exec_max);
P(se.slice_max);
P(se.wait_max);
P(se.wait_runtime_overruns);
P(se.wait_runtime_underruns);
@@ -282,6 +283,7 @@ void proc_sched_set_task(struct task_struct *p)
p->se.sleep_max = 0;
p->se.block_max = 0;
p->se.exec_max = 0;
p->se.slice_max = 0;
p->se.wait_max = 0;
p->se.wait_runtime_overruns = 0;
p->se.wait_runtime_underruns = 0;