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] Very bad network performance between domU and dom0

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Very bad network performance between domU and dom0
From: Klaus Schmidinger <Klaus.Schmidinger@xxxxxxxxxx>
Date: Thu, 25 Jan 2007 15:21:03 +0100
Delivery-date: Thu, 25 Jan 2007 06:21:03 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <40726A9415C7FA4E985717142CA98064011E1ECF@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
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/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
Organization: CadSoft Computer GmbH
References: <40726A9415C7FA4E985717142CA98064011E1ECF@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Thunderbird 1.5.0.9 (X11/20060911)
JHJE (Jan Holst Jensen) wrote:
>> The best solution is to use the para-virtual drivers - these 
>> should (in theory at least) give you about the same performance as the
> 
>> para-virtual kernel does on Xen, because it's using the same method. 
>>
>> For linux-2.6, those are available in <xen source
>> directory>/unmodified_drivers. The README file in that directoy tells
>> you how to build these drivers. It's easiest if you do this ON the
>> target-system. 
>>
>> There are drivers for Windows as well, but those are not available in
>> source-form, but I believe XenExpress contains drivers for Windows if
>> you want to get those. 
> 
> I can confirm that XenExpress contains those. The network driver reduced
> ping response time on a HV Win2003 Server VM from 7-8 ms to less than 1
> ms, so it gives a huge performance boost.
> 
> Cheers
> -- Jan Holst Jensen, Novo Nordisk A/S, Denmark

Can you give me some hints on how to get that driver out of
XenExpress and into an installed Windows XP virtual machine?
I wouldn't want to do a complete installation of XenExpress onto
my virtual Windows machine.

Klaus

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