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SubjectRe: [PATCH 0/4] x86: Add Cache QoS Monitoring (CQM) support
On Mon, Jan 06, 2014 at 04:47:57PM +0000, Waskiewicz Jr, Peter P wrote:
> > Yeah that's not accurate, nor desired I think, because you get into
> > horrible problems with hierarchies, do child groups belong to your RMID
> > or not?
>
> I'd rather not support a child group of a child group. Only groups off
> the root, and each group would be assigned an RMID when it's activated
> for monitoring.

Yeah, that's a complete non started for cgroups. Cgroups need to be
completely hierarchical.

So even the root group should represent all tasks; which if you fragment
RMIDs on child cgroups doesn't work anymore.


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