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Re: [Xen-users] Running Xen on a Xen guest

  • To: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
  • From: Todd Deshane <deshantm@xxxxxxxxx>
  • Date: Thu, 16 Jul 2009 16:25:14 +0000
  • Cc: Xen User-List <xen-users@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 16 Jul 2009 09:26:30 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi Fajar,

On Thu, Jul 16, 2009 at 9:45 AM, Fajar A. Nugraha <fajar@xxxxxxxxx> wrote:
> On Thu, Jul 16, 2009 at 4:09 PM, Stephen
> Spector<stephen.spector@xxxxxxxxxx> wrote:
> > Ian:
> >
> > I know that the Clarkson University team did this for the USENIX Xen 
> > training. It allowed for the creation of Xen guests for people at the 
> > training to leverage. I can get more info for you from Todd Deshane if you 
> > need.
> More info would be good, if available.
> I tried this with RHEL and Debian, and both performs poorly to the
> point of being unusable (for me) even for training purposes.
> Xen PV drivers for HVM domU can make HVM I/O performance increase
> significantly (close to that of PV guest), but you can't use PV
> drivers with -xen kernel :P

We were running on a Ubuntu 8.04 dom0, but I don't think the dom0 should
matter. The HVM guest that we ran was also Ubuntu 8.04, but again I don't
think the domU should matter either.

We ran on pretty nice boxes - Intel Core 2 duos, with 4 GB of RAM. We
gave 1 GB or so to the guest, but you should be able to get away with less.

Another potential use can be for Xen testing and development (since you don't
need a whole physical system to test Xen)

Hope that helps.

Best regards,

Todd Deshane

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