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From Vibranze Teh <vibranze...@gmail.com>
Subject Re: Guest OS CPU Clock
Date Wed, 17 Sep 2014 03:06:28 GMT
Thanks Bret.

I was told this is by design as well. I'm fine with that but how do we
check if the guest OS really utilizing only the CPU clock given or defined
in compute offering?

Cheers,
Vibranze

On Wed, Sep 17, 2014 at 10:50 AM, Bret Mette <bret.mette@dbihosting.com>
wrote:

> As far as I know, Xen and kvm will not actually downgrade the clock speed
> to the guest, they will just attempt to make sure the guest does not get
> scheduled for more than it's share of the core's total power.
>
> Someone correct me if I am wrong please.
>
>
> > On Sep 16, 2014, at 7:47 PM, Vibranze Teh <vibranzeteh@gmail.com> wrote:
> >
> > Hi Lists,
> >
> > I found out that the guest OS CPU clock is not conforming to the one
> > defined in compute offering.
> >
> > In Compute Offerings, I defined 1GHz, 2 Cores and the CPU Cap is ticked,
> > but when I did a 'cat /proc/cpuinfo' from guest OS, it shown my
> hypervisor
> > physical CPU clock.
> >
> > Is this behavior by design? How to really limit the guest OS to the one
> set
> > in Compute Offering?
> >
> > Thanks.
>

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