From: Dario Faggioli <raistlin@linux.it>
To: xen-devel@lists.xen.org
Cc: George Dunlap <george.dunlap@eu.citrix.com>,
Ian Jackson <Ian.Jackson@eu.citrix.com>,
Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: [PATCH] libxl: use xc_topologyinfo to figure out how many CPUs we actually have
Date: Wed, 09 May 2012 13:11:38 +0200 [thread overview]
Message-ID: <1336561898.2621.4.camel@Abyss> (raw)
In-Reply-To: <420c8861a2d2a61a7e80.1336561430@Solace>
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On Wed, 2012-05-09 at 13:03 +0200, Darrio Faggioli wrote:
> Within libxl_get_cpu_topology(), considering all the CPUs the hypervisor
> supports to be valid topology entries might lead to misleading and incorrect
> behaviours, e.g., the output of `xl info -n' below on a 16 cores machine:
> ...
> <snip>
>
> However, xc_topologyinfo() tells us (in max_cpu_index) how many entries
> arrays it returns corresponds to actually valid CPUs, so let's use that
> information.
>
> Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
>
And, as it is an actual bugfix and very very small in size, not to
forget that I'd need that for the NUMA placement series, I'm proposing
this for 4.2... Does it make sense?
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:[~2012-05-09 11:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-09 11:03 [PATCH] libxl: use xc_topologyinfo to figure out how many CPUs we actually have Darrio Faggioli
2012-05-09 11:11 ` Dario Faggioli [this message]
2012-05-09 15:23 ` Ian Jackson
2012-05-10 9:26 ` Dario Faggioli
2012-05-09 12:04 ` Ian Campbell
2012-05-09 12:45 ` Dario Faggioli
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