Re: [Xen-devel] [RFC PATCH 0/7] Intel Cache Monitoring: Current Status and Future Opportunities

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

On 04/04/2015 03:14 AM, Dario Faggioli wrote:
> ### Per-vCPU cache monitoring
> 
> This means being able to tell how much of the L3 is being used by each vCPU.
> Monitoring the cache occupancy of a specific domain, would still be possible,
> just by summing up the contributions from all the domain's vCPUs.

One note about this -- vcpu cache utilization may be predictive
short-term, but long-term it's probably less important because the guest
may move processes between vcpus.  So it may make sense to leave the
occupancy stats on a per-domain basis anyway.

Thoughts?

 -George


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