[Xen-devel] Re: DomU Powernow question

[Christian Roessner <christian@xxxxxxxxxxxxxxxx>]

Hi,

Keir Fraser schrieb:
> 
> On 15 Jun 2006, at 11:38, Christian Roessner wrote:
> 
>> My question is, why the cpu frequency in dom0 ist not jumping to 2GHz,
>> if the cpu usage inside a domU is very high?
> 
> I'm not sure what triggers frequency changes in the dom0 kernel. It is
> probably not accounting for work done in other domains. That would
> likely require a new policy kernel module, or a user-space daemon to
> gather stats from other domains.

As someone who really does not know anything about the hypervisor, I may
ask, why the scaling stuff is not done by the hypervisor?


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