From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dario Faggioli <raistlin@linux.it>
Subject: Re: [PATCH 1 of 3 v5/leftover] libxl: enable automatic
 placement of guests on NUMA nodes
Date: Fri, 20 Jul 2012 11:52:03 +0200
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To: Juergen Gross <juergen.gross@ts.fujitsu.com>
Cc: Andre Przywara <andre.przywara@amd.com>, Ian Campbell <Ian.Campbell@citrix.com>, Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>, George Dunlap <george.dunlap@eu.citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, xen-devel <xen-devel@lists.xen.org>
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On Fri, 2012-07-20 at 10:38 +0200, Juergen Gross wrote:
> > Right, that was my thinking on the ride to work also ;-)
> > What about this: 1P and 2P guests really use their vCPUs, but for bigge=
r
> > guests we assume only a fractional usage?
>=20
> Hmm. I wouldn't be sure about this. I would guess there is a reason a gue=
st has
> more than 1 vcpu. Normally this is because the guest needs more power.
>=20
Hehe, I agree with both! :-P

Maybe it's better to avoid this kind of mangling for now, and just
consider all the vcpus.

When we'll be tracking the actual load better, we'll see if it could be
worthwhile to do something along that line either.

What do you think?

Thanks and Regards,
Dario

--=20
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)


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