[CentOS] XEN or KVM - performance/stability/security?

[aurfalien]

On Apr 23, 2012, at 4:01 PM, Peter Peltonen wrote:

> Hi,
> 
> On Mon, Apr 23, 2012 at 10:54 PM, aurfalien <aurfalien at gmail.com> wrote:
>> 
>> I also prefer KVM over Xen, mainly I don;t have to do anything special when maintaining the env.
>> 
>> But I haven't notice an improvement over Xen.
>> 
>> I really like the fact that the guest OS has a stock kernel, etc..
> 
> I do not quite see how Xen requires one to do something special for
> maintenance? With pygrub you can use the stock kernel with your Xen
> domUs just fine. I have not seen any issues with stability either, but
> then again I am running mostly just web and mail servers without
> really high traffic.
> 
> But if KVM would offer improvements for performance over Xen, I should
> perhaps try it out, as sometimes when doing backups and other things
> that require a lot of disk I/O a better performance could be wished
> for...

Forgot to add there there are some cool options for increasing disk IO.

Load up KVM and check it out.  I'm pretty happy with it.

- aurf