Re: [Xen-users] Dual Core processor options

[Aaron // LT <aaron@xxxxxxxxxxxxxx>]

Keep in mind that Xen 2.0.7 seems to have problems with Dual Core 
A64s... Xen 3.0 seems to fix this problem, but we had some issues with 
2.0.7 which made it impossible to use xen.
M.A. Williamson wrote:

> Yes, that'd work. You can put domUs on any logical processor 
> (hyperthread, core, real CPU package...). If the domUs are SMP you can 
> spread them across several logical processors.
> Bear in mind dom0 has to go somewhere though ;-) On hyperthreaded 
> systems there's a benefit to allowing dom0 its own hyperthread so that 
> it's never context switched and is always available for servicing IO 
> requests.
> On a multicore without HT, you might have it share a core with domUs, 
> or dedicate a core - depending on your expected IO load.
> Cheers,
> Mark
>
> On Dec 7 2005, Simon wrote:
>
> > Hi There, Having read about this somewhere recently, am i correct in
> > assuming that if you have a (say) dual processor server with dual core
> > processors, that you can assign domU's to individual cores? for
> > example:
> >
> > 2 domUs on 1 core of one processor
> > 1 domU on the other core of the same processor
> > 1 domU to both cores of the other processor
> >
> > This allocation would of couse reflect the indented usage of domUs
> >
> > Regards,
> >
> > Simon
> >
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