From: Ian Campbell <Ian.Campbell@citrix.com>
To: Dario Faggioli <raistlin@linux.it>
Cc: Andre Przywara <andre.przywara@amd.com>,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Juergen Gross <juergen.gross@ts.fujitsu.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 [and 1 more messages]
Date: Wed, 18 Jul 2012 10:13:59 +0100 [thread overview]
Message-ID: <1342602839.26734.6.camel@zakaz.uk.xensource.com> (raw)
In-Reply-To: <1342570947.11794.92.camel@Abyss>
On Wed, 2012-07-18 at 01:22 +0100, Dario Faggioli wrote:
> So, to summarize, I can't be farther than saying the current algorithm
> is perfect or fast. Rather, I'm definitely saying it has the advantage
> of not branching out the problem space too much aggressively at this
> early stage, and it is flexible enough for avoiding getting unreasonable
> performances, or at least, it looks like that to me, I guess. :-)
I'm not quite following what you are trying to say with all this.
Are you saying that the code as most recently submitted does not have
the O( C(nr_nodes,min_nodes) ) property which Ian J suggests, which
leads to needing to process hundreds of millions of combinations for a
16 / 32 node guest? Or are you saying that it does have this property
but it doesn't matter? Or are you saying it does have this property but
you intend to ameliorate it somehow? If the latter then how and for
which release(s) (4.2, 4.3 or 4.2.1)?
Ian.
next prev parent reply other threads:[~2012-07-18 9:13 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 [this message]
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
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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