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Re: [Xen-users] How can you tell if NUMA is turned on in the Hypervisor?

To: "Jeff Lane" <sundowner225@xxxxxxxxx>
Subject: Re: [Xen-users] How can you tell if NUMA is turned on in the Hypervisor?
From: "Todd Deshane" <deshantm@xxxxxxxxx>
Date: Wed, 30 Apr 2008 18:21:36 -0400
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Hi Jeff,

On Tue, Apr 29, 2008 at 3:43 PM, Jeff Lane <sundowner225@xxxxxxxxx> wrote:
> I allegedly have some NUMA support in my hypervisor (this is Xen 3.2)
>  I booted with numa=on but don't see something obvious to clue me in
>  that NUMA is in fact on and being used.
>  On non-Xen systems, there's usually a few messages about SRAT
>  tables... on Xen however, looking at xm dmesg I can't see anything
>  that easy and obvious...
>  So , how can I verify that NUMA is in fact on?

Try xm info | grep nr_nodes

nr_nodes > 1 implies NUMA
nr_nodes == 1 imples not NUMA


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