Re: [Xen-users] query memory allocation per NUMA node

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On Wed, 2017-01-18 at 17:36 +0100, Eike Waldt wrote:
> On 01/17/2017 12:23 AM, Dario Faggioli wrote:
> > Also, how are you "pinning Dom0 CPUs", and why?
> > 
> According to the wiki page "Tuning_Xen_for_Performance", pinning Dom0
> CPUs affects the performance as "Dom0 doesn't have to schedule out".
> 
Well, it says: "Another interesting approach is...". That, IMO, means
that it is something worthwhile considering doing, _not_ that it is
guaranteed to always offer the best performance.

Of course, I'm not able to tell a-priori, whether or not, in your case,
that setup is actually good or not.

Have you also tried configuration with unpinned Dom0? If not, I
personally would give it a go.

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

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