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-devel

[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

[Xen-devel] dom0 kernel v2.6.32.41 network problem

from [Hui Kang] [Permanent Link][Original]
To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] dom0 kernel v2.6.32.41 network problem
From: Hui Kang <hkang@xxxxxxxxxxxxxxxxx>
Date: Fri, 15 Jul 2011 17:54:11 +0000
Accept-language: en-US
Delivery-date: Fri, 15 Jul 2011 10:54:54 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AQHMQxg0qbYi1SuPL0G1ZDV/ZJ17BQ==
Thread-topic: dom0 kernel v2.6.32.41 network problem
Hi,
I am running two hosts with xen-4.0.1 and dom0 kernel 2.6.32.41. The two hosts are connected to a Gigbit switch. Then I use iperf to measure the bandwidth and got the results of 200Mbit/second, which is only 1/5 of the available bandwidth. 
Then I boot these two hosts using a vanilla kernel of 2.6.32.34. The iperf reports 937Mbis/s, which is very close to the available link bandwidth. 
So why the pvops dom0 kernel performs so bad? Does anyone observe similar problem? Thanks. 

- Hui
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  Re: [Xen-devel] Re: [PATCH 4/5] xen: Fix the memory registration to reflect of what is done by Xen., Anthony PERARD
Next by Date:  Re: [Xen-devel] dom0 kernel v2.6.32.41 network problem, Konrad Rzeszutek Wilk
Previous by Thread:  [Xen-devel] Tracing xen, 王玉昊
Next by Thread:  Re: [Xen-devel] dom0 kernel v2.6.32.41 network problem, Konrad Rzeszutek Wilk
Indexes:  [Date] [Thread] [Top] [All Lists]
 
   

Copyright , Citrix Systems Inc. All rights reserved. Legal and Privacy