You may take a look  @ http://wiki.xen.org/xenwiki/RHEL6Xen4Tutorial
Xen Instance been built by myself ( on top of SL 6 alpha 3)  is similar to described in manual above. KVM improvement is amazing for Linux guests. Solaris 11 is just a
sample of non Linux KVM. I've also tested Solaris 10 ( UFS vs ZFS on S11) performance
of package deployment phase is still slow.

Boris.
P.S. Solaris 11 has xenified kernel due to Sun's effort of Xen port to Solaris ( project Nevada). xVM 3.4.2  has been recently cancelled by Oracle.

--- On Tue, 12/28/10, Stephan Wiesand <[log in to unmask]> wrote:

From: Stephan Wiesand <[log in to unmask]>
Subject: Re: SL6: cannot start virt-manager
To: [log in to unmask]
Date: Tuesday, December 28, 2010, 1:37 PM

On Dec 27, 2010, at 21:33 , Boris Derzhavets wrote:

> I have installed Xen 4.0.1 Dom0 (2.6.32.26 pvops kernel) on top of SL6
> (alpha 3) . Performance for F14 & Ubuntu 10.10 Desktop KVM guests (@
> QEMU
> Instance dual booting with Xen Host on the same box) is almost
> the same as for same paravirtual guests at Xen 4.0.1 Dom0.

Thanks for the data point. "Almost" means "not quite on par", right? That's my impression as well. Network latency seems to be significantly higher (throughput is really good, though) and I/O at least not better than with the SL5 Xen (yes, I'm using virtio net/disk devices and bridged networking).

> However, Solaris Express install as KVM is extremely slow vs Solaris Expr
> ess
> install as PV Guest at Xen 4.0.1 Dom0 with mentioned kernel.

I've had no urge to install Solaris for a while, and that hasn't changed with the recent events ;-) But I take it the  Solaris express install is using the emulated devices under KVM?

- Stephan

> The last
> one has been rebuilt via Michael's Young
> kernel-2.6.32.26-174.xendom0.fc12.src.rpm . View for instance my notes at
>
> http://bderzhavets.wordpress.com/2010/11/29/rebuild-kernel-2-6-32-26-174-
> xendom0-fc12-src-rpm-on-rhel-server-6/
>
> Boris

--
Stephan Wiesand
DESY -DV-
Platanenenallee 6
15738 Zeuthen, Germany