WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

RE: [Xen-users] I want to know if.....

To: <jonr@xxxxxxxxxx>, "Venefax" <venefax@xxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] I want to know if.....
From: "Nick Couchman" <Nick.Couchman@xxxxxxxxx>
Date: Thu, 26 Feb 2009 19:17:35 -0700
Cc:
Delivery-date: Thu, 26 Feb 2009 18:18:30 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
Xen also allows for both para-virtualization and full virtualization of guests.
 
I wouldn't say that KVM would lose 75% of Linux guest's performance, but certainly 15-20% at the least.
 
-Nick

>>> "Venefax" <venefax@xxxxxxxxx> 2009/02/26 16:32 >>>
It is not true at all. KVM and Xen are fundamentally different and address
different problems. Xen allows for fast para-virtualization of Linux Domus,
while KVM only fully-virtualizes. Nobody in his right mind would use KVM for
a linux DOMu, because it would lose 75% of its performance, compared to
para-virtualization. So KVM is for windows on Xen, but it will never replace
Xen in the datacenter.
Federico

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of jonr@xxxxxxxxxx
Sent: Thursday, February 26, 2009 6:23 PM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] I want to know if.....

Quoting Mauro <mrsanna1@xxxxxxxxx>:

> xen is no more developed?
> I've heard that xen is no more developed and kvm is more considered by
users.
>

That is not true. I think what you have heard is that RedHat has moved 
from Xen to KVM as their virtualization platform.

Xen development is still continuing and moving at a fast pace with 
hope of dom0 support for inclusion in the 2.6.30 kernel.


If I have mis-spoke will someone please correct me.

Jon



_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users




This e-mail may contain confidential and privileged material for the sole use of the intended recipient. If this email is not intended for you, or you are not responsible for the delivery of this message to the intended recipient, please note that this message may contain SEAKR Engineering (SEAKR) Privileged/Proprietary Information. In such a case, you are strictly prohibited from downloading, photocopying, distributing or otherwise using this message, its contents or attachments in any way. If you have received this message in error, please notify us immediately by replying to this e-mail and delete the message from your mailbox. Information contained in this message that does not relate to the business of SEAKR is neither endorsed by nor attributable to SEAKR.

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users