Re: [Xen-users] ntpd under Xen Dom0 exhibits extremely high jitter/noise? runs stable/quiet under non-xen kernel.

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Jan 13, 2010 at 09:23:46AM -0800, mail ignored wrote:
> 
> > You might want to give dom0 for example weight of 384 or 512,
> > so it'll have more weight than the guests (the default weight is 256).
> 
> missed the default value.  that explains that. thanks.
> 
> > dom0_vcpus=1 dom0_vcpus_pin
> 
> does that *presume* pin to cpu=0?
> 
> iiuc, i *should* be also able to
> 
>   dom0_vcpus=2 dom0_vcpus_pin
> 
> and specify that it pins to cpus=0&1?  or doe the pinning always use
> the lowest CPU #s?
> 

Yeah, "dom0_vcpus=2 dom0_vcpus_pin" should work.
You can verify it by running "xm vcpu-list" after reboot.

-- Pasi


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