Re: [Xen-devel] [PATCH 08 of 10 v2] libxl: enable automatic placement of guests on NUMA nodes

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Jun 28, 2012 at 12:12:09PM +0200, Dario Faggioli wrote:
> On Thu, 2012-06-28 at 07:25 +0000, Zhang, Yang Z wrote:
> > > This all happens internally to libxl, and no API for driving the 
> > > mechanism is
> > > provided for now. This matches what xend already does.
> > we should consider the basic IONUMA. I mean when a guest with a device 
> > assigned, 
> > from the point of view of performance, it's better to allocated the memory 
> > from the node 
> > which the device belongs to.
> >
> That sure makes sense, and it would be a very useful extension!
> 
> > Furthermore, we need consider the guest NUMA(I am working on it now) and 
> > live migration.
> > 
> Great. Can you share, either here on or a separate thread some more
> details about what you mean by both "guest NUMA" and "live migration" in
> this context?
> 
> As George said, that would be 4.3 material, but I'm still very
> interested. :-)
> 

For the mailinglist archives.. 

here are the Xen guest VM NUMA slides from XenSummit 2010:
http://www.slideshare.net/xen_com_mgr/nakajima-numafinal
http://www.slideshare.net/xen_com_mgr/dulloor-xensummit

-- Pasi


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