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FromCon Kolivas <>
SubjectRe: Schedulers benchmark - Was: [ANNOUNCE][RFC] PlugSched-5.2.4 for 2.6.12 and 2.6.13-rc6
DateThu, 18 Aug 2005 07:35:03 +1000
On Thu, 18 Aug 2005 04:04, Michal Piotrowski wrote:
> Hi,
> here are additional staircase scheduler benchmarks.
>
> (make all -j8)
>
> scheduler:
> staircase
>
> sched_compute=1

> real 49m48.619s
> user 77m20.788s
> sys 6m7.653s

Very nice thank you.

Since you are benchmarking, here is an unofficial update to the staircase
patch to the current non-plugsched version which will affect the results of
interbench (it won't change the benchmark results of compute mode).

Cheers,
Con
Index: linux-2.6.13-rc6-plugsched/kernel/staircase.c
===================================================================
--- linux-2.6.13-rc6-plugsched.orig/kernel/staircase.c 2005-08-18 07:32:34.000000000 +1000
+++ linux-2.6.13-rc6-plugsched/kernel/staircase.c 2005-08-18 07:33:10.000000000 +1000
@@ -64,8 +64,8 @@ int sched_compute = 0;
*compute setting is reserved for dedicated computational scheduling
*and has ten times larger intervals.
*/
-#define _RR_INTERVAL ((10 * HZ / 1000) ? : 1)
-#define RR_INTERVAL() (_RR_INTERVAL * (1 + 9 * sched_compute))
+#define _RR_INTERVAL ((5 * HZ / 1000) ? : 1)
+#define RR_INTERVAL() (_RR_INTERVAL * (1 + 19 * sched_compute))

#define TASK_PREEMPTS_CURR(p, rq) \
((p)->prio < (rq)->curr->prio)
\
 
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