Re: [Xen-users] Improve performance of domain U

["Martin Svedin" <martin.svedin@xxxxxxxxx>]

I have a similar question. When I get some load on my dom0 all the
domUs more or less freeze and are impossible to work with (though the
dom0 is as responsive as ever (unless I have some really heavy load
ofcourse :) ) ).

Is there some (easy) way to make sure that the dom0 doesn't 'steal'
the CPU or is this working as intended?

On 9/3/06, saptarshi naha <naha80@xxxxxxxxx> wrote:
> I just had a quick question about improving the performance for Xen VM's.
>
> I have installed Xen 3.0.2 on RHEL4 with 1 kernel compiled for all
> domains. When I access by VM's the performance of the domain U is
> slower then taht of domain 0.
>
> 1. I wanted to know if there are any configuration changes I can make
> to improve the performance of domain U?
>
> 2. Domain U have no /boot sector in /etc/fstab. It is all a single
> partition in / . I wanted to know if there are any shortcoming to just
> having / partition to performance?
>
> 3. Also can the domain U be given swap space to improve performance? I
> am guesssing thats the swap is used from domain 0 which was added
> during inital installation.
>
> 4. Is the performance of teh domain U dropped due to internal
> networking through bridging? I wanted to know if anyone knows how to
> fine tune it to improve performance.
>
> Thanks,
> Naha.
>
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