Re: [PATCH 1/2] sched: introduce avg_wakeup

From: Peter Zijlstra
Date: Wed Jan 14 2009 - 08:20:28 EST


On Wed, 2009-01-14 at 13:05 +0100, Ingo Molnar wrote:

> mind sending a delta against the first submission? Whenever you are done
> with the lunch stuff ;-)

Compile fix and cleanup, actually compile tested too :-)

---
Index: linux-2.6/kernel/sched.c
===================================================================
--- linux-2.6.orig/kernel/sched.c
+++ linux-2.6/kernel/sched.c
@@ -2415,14 +2415,16 @@ out_activate:
* Only attribute actual wakeups done by this task.
*/
if (!in_interrupt()) {
+ struct sched_entity *se = &current->se;
u64 sample = se->sum_exec_runtime;
+
if (se->last_wakeup)
sample -= se->last_wakeup;
else
sample -= se->start_runtime;
update_avg(&se->avg_wakeup, sample);

- current->se.last_wakeup = current->se.sum_exec_runtime;
+ se->last_wakeup = se->sum_exec_runtime;
}

out_running:


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