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Re: [Xen-devel] Performance difference between Xen versions

To: Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] Performance difference between Xen versions
From: Keir Fraser <keir@xxxxxxx>
Date: Mon, 02 May 2011 09:49:02 +0100
Cc: Keir Fraser <keir.xen@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 02/05/2011 09:23, "Juergen Gross" <juergen.gross@xxxxxxxxxxxxxx> wrote:

> On 05/02/11 10:15, Jan Beulich wrote:
>>>>> On 02.05.11 at 10:00, Juergen Gross<juergen.gross@xxxxxxxxxxxxxx>  wrote:
>>> On the long run I'd like to make the cpufreq governor a feature of the
>>> cpupool. This would enable an administrator of a large Xen machine
>>> with a heterogeneous load to specify which domains should run at
>>> full speed and which are allowed to save energy at the cost of latency.
>>> 
>>> What do you think?
>> Certainly an interesting idea, with the question of how an implementation
>> of this would look like.
> 
> Let me do some research work first :-)
> I hope to make a proposal soon.

I think it's a good idea, and it should be quite possible to implement
cleanly.

 -- Keir



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