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SubjectRe: 2.6.8-rc2-mm2 performance improvements (scheduler?)
--On Wednesday, August 04, 2004 22:10:19 +0200 Ingo Molnar <mingo@elte.hu> wrote:

>
> * Martin J. Bligh <mbligh@aracnet.com> wrote:
>
>> >> SDET 16 (see disclaimer)
>> >> Throughput Std. Dev
>> >> 2.6.7 100.0% 0.3%
>> >> 2.6.8-rc2 99.5% 0.3%
>> >> 2.6.8-rc2-mm2 118.5% 0.6%
>> >
>> > hum, interesting. Can Con's changes affect the inter-node and inter-cpu
>> > balancing decisions, or is this all due to caching effects, reduced context
>> > switching etc?
>
> Martin, could you try 2.6.8-rc2-mm2 with staircase-cpu-scheduler
> unapplied a re-run at least part of your tests?
>
> there are a number of NUMA improvements queued up on -mm, and it would
> be nice to know what effect these cause, and what effect the staircase
> scheduler has.

Sure. I presume it's just the one patch:

staircase-cpu-scheduler-268-rc2-mm1.patch

which seemed to back out clean and is building now. Scream if that's not
all of it ...

M.

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