Re: [RFC]cpuidle: disable menu governor if nohz is disabled

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On Wed, 2011-08-31 at 10:35 +0800, Arjan van de Ven wrote:
> On Wed, 31 Aug 2011 09:56:07 +0800
> Shaohua Li <shaohua.li@xxxxxxxxx> wrote:
> 
> > Lenb,
> > Aubrey is asking me to fix the issue. So either we delete disable nohz
> > code or fix cpuidle. if you want to fix cpuidle, here it is.
> > 
> > Thanks,
> > SHaohua
> > 
> > Subject: cpuidle: disable menu governor if nohz is disabled
> > 
> > Aubrey is asking why nohz disables C-state. nohz has no dependency
> > with idle, but menu governor does. If nohz is disabled, using menu
> > governor is pointless, because we never get correct sleep length, so
> > let's use ladder governor just like nohz isn't compiled in.
> > 
> 
> 
> I would prefer to not allow nohz.......
is there any risk to do this? maybe lenb can answer why previous attempt
to do this failed.


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