Messages in this thread | | | Date | Mon, 6 Jan 2014 18:53:38 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 0/4] x86: Add Cache QoS Monitoring (CQM) support |
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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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