[CentOS-virt] moving from Xen to KVM
pasik at iki.fi
Wed Mar 17 15:16:30 UTC 2010
On Wed, Mar 17, 2010 at 02:15:52PM +0100, Hildebrand, Nils, 232 wrote:
> just two questions:
> 1. Is there anything faster than XEN-paravirtualization?
> 2. Why XEN 5?
> XEN 3 is quite stable, too.
I guess you mean Citrix XenServer 5.5 with "Xen 5" ?
It's a completely different, full commercially supported product from Citrix,
which has the opensource Xen hypervisor as a part of it. Actually it's based on CentOS.
Citrix XenServer 5.x uses Xen 3.x hypervisor.
> I have 31 DomUs up and running on a single Box - and have a strong feeling that even 60 will run flawless.
> But: All of them are Para-Virtualized.
Yeah, Linux PV guests perform and work OK.
> I have no problem with disk IO-Bottlenecks since my DomUs are not Database-Servers - so there is mostly static information in the filesystems.
> I see no reason why I should move to KVM.
> My only limitation is memory, since RAM is not being virtually mapped yet.
> Kind regards
> > -----Ursprüngliche Nachricht-----
> > Von: centos-virt-bounces at centos.org
> > [mailto:centos-virt-bounces at centos.org] Im Auftrag von
> > Christopher G. Stach II
> > Gesendet: Freitag, 26. Februar 2010 09:04
> > An: Discussion about the virtualization on CentOS
> > Betreff: Re: [CentOS-virt] moving from Xen to KVM
> > [...]
> > Here are a few tips:
> > 1. F*** KVM.
> > 2. Stick with Xen because there is quite a lot of time until
> > 5 is EOL'd and if you haven't noticed, it's actually a mature
> > technology. [...]
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