From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dario Faggioli <dario.faggioli@citrix.com>
Subject: Re: about the VM's memory distribution on numa nodes
Date: Mon, 22 Apr 2013 12:46:12 +0200
Message-ID: <1366627572.9426.4.camel@Abyss>
References: <517107B8.049A1A.25089@zju.edu.cn>
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To: butian huang <11221079@zju.edu.cn>
Cc: "andre.przywara" <andre.przywara@amd.com>, "juergen.gross" <juergen.gross@ts.fujitsu.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, xen-devel <xen-devel@lists.xen.org>, stephen <stephen@networkplumber.org>, JBeulich <JBeulich@suse.com>
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On ven, 2013-04-19 at 10:00 +0100, butian huang wrote:
> hello Dario,
>=20
Hi,

> My question is about the virtual machine's memory distribution,I want to =
get the information from guest os.
>
Ok, then the answer is: that is not possible. :-( Of course, this in
only true because no one yet has implemented the set of features
required for this to became true, it would be wonderful to receive some
help with it! :-)

> For example,when the VM has intalled the Win7 or Redhat,how to get the me=
mory distribution?=20
> And if know this,then the application on the OS can optimize the performa=
nce and access the affinity node.
> =09
Exactly. See here:

http://wiki.xen.org/wiki/Xen_NUMA_Roadmap#Virtual_NUMA_topology_exposure_to=
_guests

If you have some time to spend on the issue, you're welcome to join the
crew! If that is the case, feel free to ask me directly (xen-devel is of
course fine, but no need to bother all the other people you're Cc-ing)
for anything you need. :-)

Thanks and Regards,
Dario

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


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