lkml.org 
[lkml]   [2014]   [May]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RESEND PATCH V5 0/8] remove cpu_load idx

>
> 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


\
 
 \ /
  Last update: 2014-05-06 11:21    [W:0.072 / U:0.184 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site