Re: unnecessary timer interrupt of slab.c and bdi tasks when thesystem is in sleep state

[Frederic Weisbecker]

On Fri, Oct 01, 2010 at 08:20:22AM -0700, Van De Ven, Arjan wrote:
> 
> > > the slab timer is already deferable... which means it won't hit while
> > the system is completely idle.
> > 
> > 
> > I'm not sure what you mean exactly. The slab work seems to be scheduled
> > strictly
> > periodically, unless the cpu goes offline. But I can't find any nohz-
> > wise adaptation.
> > 
> 
>                 INIT_DELAYED_WORK_DEFERRABLE(reap_work, cache_reap);
> 
> that will cause it to only run when the cpu is actually idle...


Aah ok, I missed that. Thanks.

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