From: Dario Faggioli <raistlin@linux.it>
To: Ian Campbell <Ian.Campbell@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>,
"Keir (Xen.org)" <keir@xen.org>,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
"Tim (Xen.org)" <tim@xen.org>,
Juergen Gross <juergen.gross@ts.fujitsu.com>,
Ian Jackson <Ian.Jackson@eu.citrix.com>,
Jan Beulich <JBeulich@suse.com>
Subject: Re: RFC: Still TODO for 4.2? xl domain numa memory allocation vs xm/xend
Date: Fri, 20 Jan 2012 10:47:03 +0100 [thread overview]
Message-ID: <1327052823.2337.5.camel@Abyss> (raw)
In-Reply-To: <1327050108.17599.113.camel@zakaz.uk.xensource.com>
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On Fri, 2012-01-20 at 09:01 +0000, Ian Campbell wrote:
> > See this thread:
> > http://old-list-archives.xen.org/archives/html/xen-devel/2011-07/msg01423.html
> >
> > where Stefano wrote:
> > "I think we forgot about this feature but it is important and hopefully
> > somebody will write a patch for it before 4.2 is out."
>
> Is anyone looking into this?
>
Hi,
Actually, I'll be investigating how we could gradually introduce some
NUMA support in both the Xen scheduler and memory allocator!
I already have some ideas and I'm looking at the code to better
understand it and find out what's the best strategy and from where it's
better to start. I can give some more details, here or on separate
thread, in a few days, if you're interested.
The only thing is that I'm not sure how far I'll be able to get before
4.2. I really think I'll have _something_ but maybe not a full-fledged
NUMA-aware patchset! :-P
> Does cpupool-numa-split solve this same problem?
>
I'm looking right into that, and indeed I think it does a lot in this
direction. The idea was to try doing something similar in a sort of
automatic fashion, so that everyone can benefit from at least some
NUMA-awareness, even without having to bother with cpupools.
It that what you were asking?
Thanks and Regards,
Dario
--
<<This happens because I choose it to happen!>> (Raistlin Majere)
-------------------------------------------------------------------
Dario Faggioli, http://retis.sssup.it/people/faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
PhD Candidate, ReTiS Lab, Scuola Superiore Sant'Anna, Pisa (Italy)
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next prev parent reply other threads:[~2012-01-20 9:47 UTC|newest]
Thread overview: 97+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-04 16:29 RFC: Still TODO for 4.2? Ian Campbell
2012-01-04 16:47 ` Konrad Rzeszutek Wilk
2012-01-04 16:51 ` Stefano Stabellini
2012-01-16 13:42 ` Ian Campbell
2012-01-04 16:55 ` Jan Beulich
2012-01-16 13:39 ` Ian Campbell
2012-01-16 14:48 ` Jan Beulich
2012-01-16 15:00 ` Stefano Stabellini
2012-01-04 17:25 ` Pasi Kärkkäinen
2012-01-04 17:36 ` George Dunlap
2012-01-04 18:20 ` Tim Deegan
2012-01-05 10:39 ` Ian Campbell
2012-01-06 15:24 ` RFC: Still TODO for 4.2? Nested Paging for Intel Nested Virt Pasi Kärkkäinen
2012-01-04 19:21 ` RFC: Still TODO for 4.2? Wei Huang
2012-01-04 19:43 ` Pasi Kärkkäinen
2012-01-04 19:57 ` Wei Huang
2012-01-05 7:27 ` Pasi Kärkkäinen
2012-01-06 15:37 ` Konrad Rzeszutek Wilk
2012-01-06 19:08 ` Wei Huang
2012-02-06 17:57 ` Pasi Kärkkäinen
2012-02-13 17:52 ` Extracting ATI/AMD Radeon VBIOS ROM Pasi Kärkkäinen
2012-01-05 13:19 ` Re : RFC: Still TODO for 4.2? David TECHER
2012-01-05 13:25 ` Ian Campbell
2012-01-05 13:41 ` Re : " David TECHER
2012-01-05 16:18 ` Ian Campbell
2012-01-16 13:28 ` Ian Campbell
2012-01-16 14:39 ` Re : " David TECHER
2012-01-04 17:39 ` Roger Pau Monné
2012-01-05 18:07 ` Driver domains and hotplug scripts, redux Ian Jackson
2012-01-06 12:01 ` Stefano Stabellini
2012-01-09 10:08 ` Roger Pau Monné
2012-01-09 12:26 ` Stefano Stabellini
2012-01-09 17:39 ` Ian Jackson
[not found] ` <alpine.DEB.2.00.1201101448030.3150@kaball-desktop>
[not found] ` <20236.23822.715733.455559@mariner.uk.xensource.com>
[not found] ` <alpine.DEB.2.00.1201101547540.3150@kaball-desktop>
[not found] ` <20236.24780.865152.458124@mariner.uk.xensource.com>
[not found] ` <alpine.DEB.2.00.1201101619460.3150@kaball-desktop>
[not found] ` <20236.27158.706017.813195@mariner.uk.xensource.com>
[not found] ` <alpine.DEB.2.00.1201101655390.3150@kaball-desktop>
[not found] ` <20236.28931.127139.752426@mariner.uk.xensource.com>
2012-01-11 11:50 ` Roger Pau Monné
2012-01-11 12:17 ` Ian Campbell
2012-01-11 14:26 ` Dave Scott
2012-01-12 16:50 ` Ian Jackson
2012-01-12 18:07 ` Dave Scott
2012-01-11 14:44 ` Roger Pau Monné
2012-01-12 16:48 ` Ian Jackson
2012-01-16 17:52 ` Roger Pau Monné
2012-01-16 17:58 ` Ian Jackson
2012-01-17 9:17 ` Ian Campbell
2012-01-17 9:30 ` Roger Pau Monné
2012-01-17 9:43 ` Ian Campbell
2012-01-17 9:40 ` Roger Pau Monné
2012-01-17 9:52 ` Ian Campbell
2012-01-17 10:00 ` Roger Pau Monné
2012-01-17 10:39 ` Ian Campbell
2012-01-23 11:40 ` Roger Pau Monné
2012-01-27 8:43 ` Roger Pau Monné
2012-01-27 10:57 ` Stefano Stabellini
2012-01-31 9:57 ` Roger Pau Monné
2012-01-31 10:06 ` Tim Deegan
2012-01-31 13:47 ` Stefano Stabellini
2012-01-31 13:51 ` Ian Campbell
2012-01-31 13:51 ` Stefano Stabellini
2012-01-31 20:02 ` Ian Campbell
2012-01-17 9:22 ` Roger Pau Monné
2012-01-11 12:50 ` Stefano Stabellini
2012-01-05 17:49 ` RFC: Still TODO for 4.2? Ian Jackson
2012-01-06 13:37 ` Ian Campbell
2012-01-10 16:06 ` Ian Jackson
2012-01-16 11:55 ` George Dunlap
2012-01-19 21:14 ` RFC: Still TODO for 4.2? xl domain numa memory allocation vs xm/xend Pasi Kärkkäinen
2012-01-20 7:59 ` Ian Campbell
2012-01-20 8:15 ` Pasi Kärkkäinen
2012-01-20 9:01 ` Ian Campbell
2012-01-20 9:47 ` Dario Faggioli [this message]
2012-01-20 11:56 ` Ian Campbell
2012-01-23 9:59 ` Juergen Gross
2012-01-20 10:55 ` Stefano Stabellini
2012-01-20 11:22 ` Ian Campbell
2012-01-20 11:25 ` Stefano Stabellini
2012-01-20 11:44 ` Dario Faggioli
2012-01-20 11:54 ` Ian Campbell
2012-01-20 12:04 ` Dario Faggioli
2012-01-20 12:33 ` Ian Campbell
2012-01-20 13:11 ` Ian Campbell
2012-01-20 15:06 ` Ian Campbell
2012-01-20 16:02 ` Dario Faggioli
2012-01-20 16:21 ` Ian Campbell
2012-01-20 16:28 ` Ian Campbell
2012-01-20 16:31 ` George Dunlap
2012-01-20 16:39 ` Ian Campbell
2012-01-20 16:43 ` George Dunlap
2012-01-20 16:54 ` Ian Campbell
2012-01-20 17:32 ` Dario Faggioli
2012-01-23 10:19 ` Ian Campbell
2012-01-23 13:14 ` Dario Faggioli
2012-01-23 13:20 ` Ian Campbell
2012-01-20 16:55 ` Ian Campbell
2012-01-20 16:59 ` George Dunlap
2012-01-20 16:58 ` Dario Faggioli
2012-01-20 17:23 ` Ian Campbell
2012-01-20 17:28 ` Dario Faggioli
2012-01-20 11:26 ` Dario Faggioli
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