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 11:44:56 +0200
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To: Andre Przywara <andre.przywara@amd.com>
Cc: 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>, Juergen Gross <juergen.gross@ts.fujitsu.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 10:26 +0200, Andre Przywara wrote:
> > I really am not sure what to do here, perhaps treating the two metrics
> > more evenly? Or maybe even reverse the logic and give nr_domains more
> > weight?
>=20
> I replaced the 3 with 1 already, that didn't change so much. I think we=
=20
> should kind of reverse the importance of node load, since starving for=
=20
> CPU time is much worse than bad memory latency. I will do some=20
> experiments...
>=20
That would be nice. If you happen to have time to put something like
"3*nrdomains_diff+memfree_diff" and see how it goes, I'll be happy to
include at least that change, even in next posting.

After that, let's see what it takes to turn the domain counting into
vcpu counting (it shouldn't be too hard).

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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