From: Dario Faggioli <raistlin@linux.it>
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>
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 [thread overview]
Message-ID: <1342777923.19530.277.camel@Solace> (raw)
In-Reply-To: <500918E8.3000708@ts.fujitsu.com>
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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 bigger
> > guests we assume only a fractional usage?
>
> Hmm. I wouldn't be sure about this. I would guess there is a reason a guest has
> more than 1 vcpu. Normally this is because the guest needs more power.
>
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
--
<<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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next prev parent reply other threads:[~2012-07-20 9:52 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-10 15:03 [PATCH 0 of 3 v4/leftover] Automatic NUMA placement for xl Dario Faggioli
2012-07-10 15:03 ` [PATCH 1 of 3 v4/leftover] libxl: enable automatic placement of guests on NUMA nodes Dario Faggioli
2012-07-17 15:55 ` Ian Jackson
2012-07-16 17:13 ` [PATCH 0 of 3 v5/leftover] Automatic NUMA placement for xl Dario Faggioli
2012-07-16 17:13 ` [PATCH 1 of 3 v5/leftover] libxl: enable automatic placement of guests on NUMA nodes Dario Faggioli
2012-07-17 18:04 ` [PATCH 1 of 3 v5/leftover] libxl: enable automatic placement of guests on NUMA nodes [and 1 more messages] Ian Jackson
2012-07-17 20:23 ` Ian Campbell
2012-07-18 0:31 ` Dario Faggioli
2012-07-18 10:44 ` Ian Jackson
2012-07-18 0:22 ` Dario Faggioli
2012-07-18 8:27 ` Dario Faggioli
2012-07-18 9:13 ` Ian Campbell
2012-07-18 9:43 ` Dario Faggioli
2012-07-18 9:53 ` Ian Campbell
2012-07-18 10:08 ` Dario Faggioli
2012-07-18 11:00 ` Ian Jackson
2012-07-18 13:14 ` Ian Campbell
2012-07-18 13:35 ` Dario Faggioli
2012-07-19 12:47 ` Dario Faggioli
2012-07-18 13:40 ` Andre Przywara
2012-07-18 13:54 ` Juergen Gross
2012-07-18 14:00 ` Dario Faggioli
2012-07-19 14:43 ` Ian Jackson
2012-07-19 18:37 ` Andre Przywara
2012-07-21 1:46 ` Dario Faggioli
2012-07-18 10:53 ` Ian Jackson
2012-07-18 13:12 ` Ian Campbell
2012-07-18 9:47 ` Dario Faggioli
2012-07-19 12:21 ` [PATCH 1 of 3 v5/leftover] libxl: enable automatic placement of guests on NUMA nodes Andre Przywara
2012-07-19 14:22 ` Dario Faggioli
2012-07-20 8:19 ` Andre Przywara
2012-07-20 9:39 ` Dario Faggioli
2012-07-20 10:01 ` Dario Faggioli
2012-07-20 8:20 ` Dario Faggioli
2012-07-20 8:26 ` Andre Przywara
2012-07-20 8:38 ` Juergen Gross
2012-07-20 9:52 ` Dario Faggioli [this message]
2012-07-20 9:56 ` Juergen Gross
2012-07-20 9:44 ` Dario Faggioli
2012-07-20 11:47 ` Andre Przywara
2012-07-20 12:54 ` Dario Faggioli
2012-07-20 13:07 ` Andre Przywara
2012-07-21 1:44 ` Dario Faggioli
2012-07-16 17:13 ` [PATCH 2 of 3 v5/leftover] libxl: have NUMA placement deal with cpupools Dario Faggioli
2012-07-16 17:13 ` [PATCH 3 of 3 v5/leftover] Some automatic NUMA placement documentation Dario Faggioli
2012-07-20 11:07 ` [PATCH 0 of 3 v5/leftover] Automatic NUMA placement for xl David Vrabel
2012-07-20 11:43 ` Andre Przywara
2012-07-20 12:00 ` Ian Campbell
2012-07-20 12:08 ` Ian Campbell
2012-07-23 10:38 ` Dario Faggioli
2012-07-23 10:42 ` Ian Campbell
2012-07-23 15:31 ` Dario Faggioli
2012-07-23 10:23 ` Dario Faggioli
2012-07-20 12:14 ` David Vrabel
2012-07-17 15:59 ` [PATCH 1 of 3 v4/leftover] libxl: enable automatic placement of guests on NUMA nodes Ian Campbell
2012-07-17 18:01 ` Ian Jackson
2012-07-17 22:15 ` Dario Faggioli
2012-07-10 15:03 ` [PATCH 2 of 3 v4/leftover] libxl: have NUMA placement deal with cpupools Dario Faggioli
2012-07-10 15:03 ` [PATCH 3 of 3 v4/leftover] Some automatic NUMA placement documentation Dario Faggioli
2012-07-16 17:03 ` [PATCH 0 of 3 v4/leftover] Automatic NUMA placement for xl Dario Faggioli
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