RE: [Xen-devel] Xen 3.4.1 NUMA support

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

VMware has the notion of a "cell" where VMs can be
scheduled only within a cell, not across cells.
Cell boundaries are determined by VMware by
default, though certains settings can override them.

An interesting project might be to implement
"numa=cell" for Xen.... or maybe something similar
is already in George Dunlap's scheduler plans?

> -----Original Message-----
> From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
> Sent: Wednesday, November 04, 2009 5:33 AM
> To: Papagiannis Anastasios; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] Xen 3.4.1 NUMA support
> 
> 
> Add Xen boot parameter 'numa=on' to enable NUMA detection. 
> Then it's up to
> you to, for example, pin domains to specific nodes, using the 
> 'cpus=...'
> option in the domain config file. See /etc/xen/xmexample1 for 
> an example of
> its usage.
> 
>  -- Keir
> 
> On 04/11/2009 12:02, "Papagiannis Anastasios" 
> <apapag@xxxxxxxxxxxx> wrote:
> 
> > Hello,
> > 
> > does the last version of Xen(3.4.1) support NUMA machines? 
> Is there a .pdf
> > or a link that can give me some more details about that? I work on a
> > project for xen performace in numa machines. And in xen 3.3.0 this
> > performance isn't good. Have something changed in last version?
> > 
> > Thanks in advance,
> > Papagiannis Anastasios
> > 
> > 
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> 
> 
> 
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