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Re: [Xen-users] Xen and KVM.

To: Mauro <mrsanna1@xxxxxxxxx>
Subject: Re: [Xen-users] Xen and KVM.
From: Johannes Schlatow <johannes.schlatow@xxxxxxxxxxxxxx>
Date: Tue, 18 Nov 2008 20:53:21 +0100
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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I tried KVM some weeks ago but I just had installed one guest system
(Windows 2000 Server).

+ nice hardware compatibility (quite newer kernels than 2.6.18 supported)

- afaik no PCI passthrough
- still in development and not as stable as Xen

My Win2000 Server is far more faster on Xen, maybe this was an issue
with the standard interfaces between dom0 and guest. If you can use
virtio devices (I think the frontend drivers are included since kernel
version 2.6.23 or 2.6.25) there will be no bottle neck anymore.
With some kernel hacks I newly got Xen running on my hardware (nvidia
630a chipset). So this will be my personal solution for some month.

On a desktop system with newer hardware a KVM system is perhaps the best
solution, but on a server I think it's better to get Xen running.

If you have a running Xen system then I don't see any reason why to
change it, considering the stage of developement.

> I have read about another virtualizazion system: KVM.
> It seems very good and I know about users that have replaced Xen with KVM.
> What do you think about?
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