From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir@xen.org>
Subject: Re: Performance difference between Xen versions
Date: Mon, 02 May 2011 09:49:02 +0100
Message-ID: <C9E42E8E.2CD9B%keir@xen.org>
References: <4DBE6A1C.2040107@ts.fujitsu.com>
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To: Juergen Gross <juergen.gross@ts.fujitsu.com>, Jan Beulich <JBeulich@novell.com>
Cc: Keir Fraser <keir.xen@gmail.com>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
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On 02/05/2011 09:23, "Juergen Gross" <juergen.gross@ts.fujitsu.com> wrote:

> On 05/02/11 10:15, Jan Beulich wrote:
>>>>> On 02.05.11 at 10:00, Juergen Gross<juergen.gross@ts.fujitsu.com>  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