[et-mgmt-tools] paravirtualization on a T7200

Javier Carnero Iglesias emepetres at gmail.com
Mon Jan 26 15:17:07 UTC 2009

I tried to install xen on ubuntu but it breaks my graphics driver. So I'll
come back with kvm and virtio-guest drivers. Anyway kvm works pretty good
for me so I think it's the best choice.

Thanks very much for your help, now I have a little more idea on how kvm and
xen works.

2009/1/26 Mark McLoughlin <markmc at redhat.com>

> On Sat, 2009-01-24 at 12:31 +0100, Javier Carnero Iglesias wrote:
> >  I'm using kvm in Ubuntu Intrepid x86_64, and I thought kvm could do
> > paravirtualization. So I'll try xen while I'm waiting for a new
> > release of kvm with paravirtualization support.
> Para-virtualization isn't always better.
> KVM uses full virtualization, meaning that it uses the processor's
> support for virtualization. This means you can run an unmodified guest
> OS on KVM.
> If you can modify the guest OS, then KVM *does* allow you to use
> paravirtualization for some performance sensitive operations - so e.g.
> we've got pvclock, pv MMU and virtio devices.
> Don't get tied up in marketing terminology - try both and decide for
> yourself which works best for you.
> Cheers,
> Mark.
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