Re: [PATCH v2 cgroup/for-3.16] cgroup: add documentation about unified hierarchy

From: Tejun Heo
Date: Tue Apr 22 2014 - 17:14:38 EST


Hello,

Hope you enjoyed the vacation. :)

On Tue, Apr 22, 2014 at 06:27:07PM +0200, Michal Hocko wrote:
> On Wed 16-04-14 10:52:48, Tejun Heo wrote:
> [....]
> > +The memory controller currently doesn't have a way to control what
> > +happens between internal tasks and child cgroups and the behavior is
> > +not clearly defined.
>
> I am not sure I understand this. Could you be more specific what exactly
> is not clearly defined?

Oh, the fact that there are no control knobs for the internal tasks,
so when there's contention involving both internal tasks and child
cgroups, how resources are distributed is implementation specific
without clearly defined rules.

Thanks.

--
tejun
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