XEN vs VirtualBox

[Patrick O'Callaghan]

On Tue, 2011-04-05 at 12:29 -0400, Digimer wrote:
> On 04/05/2011 12:09 PM, Luc MAIGNAN wrote:
> > Hi,
> > 
> > until now, I use VirtualBox to manage several virtual machines. I have 
> > performances problems. I can see that the VMS don't use really all CPU 
> > capabilities. I think that the problem come from the CPU emulation done 
> > by VirtualBox.
> > 
> > So I said to me that the solution is to use a real hypervisor. I planned 
> > tu use XEN for doing this.
> > 
> > Do you think that I can really use CPU capabilities by using XEN ?
> > Is there is way then to convert VB image to XEN domains ?
> > 
> > Thanks for any help
> 
> If you are using recent versions of Fedora, you might want to look at
> KVM as it is has native support. Xen is a great hypervisor, but it
> currently requires more effort to get working. If you want to use Xen
> "out of the box", then I'd recommend looking at CentOS 5.5.
> 
> Both KVM and Xen support hardware virtualization.

As does VirtualBox (and VMware for that matter). Perhaps the OP doesn't
have hardware virtualization support?

poc