From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dario Faggioli <raistlin@linux.it>
Subject: Re: [PATCH 3 of 4 v6/leftover] libxl: have NUMA
 placement deal with cpupools
Date: Mon, 23 Jul 2012 15:21:46 +0200
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To: Ian Jackson <Ian.Jackson@eu.citrix.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>, Juergen Gross <juergen.gross@ts.fujitsu.com>, xen-devel <xen-devel@lists.xen.org>
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On Mon, 2012-07-23 at 12:38 +0100, Ian Jackson wrote:
> Dario Faggioli writes ("[PATCH 3 of 4 v6/leftover] libxl: have NUMA place=
ment deal with cpupools"):
> > In such a way that only the cpus belonging to the cpupool of the
> > domain being placed are considered for the placement itself.
> >=20
> > This happens by filtering out all the nodes in which the cpupool
> > has not any cpu from the placement candidates. After that ---as
> > cpu pooling not necessarily happens at NUMA nodes boundaries--- we
> > also make sure only the actual cpus that are part of the pool are
> > considered when counting how much processors a placement candidate
> > provides.
>=20
> Is this patch essential for the 4.2 release ?
>=20
I think it is, as cpupool are officially part of 4.2, IIRC, so ignoring
them doesn't look like the right thing to.

Of course that well is debatable, it's just my opinion. :-)

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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