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Re: [Xen-devel] Is: axe read_tscp pvops call. Was: Re: [RFC] ACPI S3 and Xen (suprisingly small\!).

> As for 'perf', since Xen already provides a virtual PMU for HVM guests
> It's not clear why we would spend the effort to implement another
> mechanism for PV guests (instead of using the virtual PMU from a PVH guest).

Would that allow one to evaluate the performance/bottlenecks that the
hypervisor might have?

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