Messages in this thread | | | Date | Tue, 06 May 2014 16:33:38 +0800 | From | Alex Shi <> | Subject | Re: [RESEND PATCH V5 0/8] remove cpu_load idx |
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> > Maybe the predication is reasonable on per task history. but on a cpu > load history, with many tasks rebalance. No testing show current method > is helpful. > > For task load change, scheduler has no idea for its future except guess > from its history. but for cpu load change, scheduler know this from task > wakeup and balance, which both under control and its aim. > > > I think the first patch of this serial has the same effect of LB_LIAS > disable. and previous result show performance is good. > > Anyway, I just pushed the following patch to github, maybe fengguang's > testing system will care this.
Fengguang,
Are there any performance change on https://github.com/alexshi/power-scheduling.git noload repository?
> > diff --git a/kernel/sched/features.h b/kernel/sched/features.h > index 5716929..0bf649f 100644 > --- a/kernel/sched/features.h > +++ b/kernel/sched/features.h > @@ -43,7 +43,7 @@ SCHED_FEAT(ARCH_POWER, true) > > SCHED_FEAT(HRTICK, false) > SCHED_FEAT(DOUBLE_TICK, false) > -SCHED_FEAT(LB_BIAS, true) > +SCHED_FEAT(LB_BIAS, false) > >
-- Thanks Alex
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