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/
Home Products Support Community News


Re: [Xen-users] expected network throughput on RHEL Dom0 / PV DomU

To: Zoran Popović <shoom013@xxxxxxxxx>
Subject: Re: [Xen-users] expected network throughput on RHEL Dom0 / PV DomU
From: "Fajar A. Nugraha" <fajar@xxxxxxxxx>
Date: Fri, 4 Sep 2009 05:34:15 +0700
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 03 Sep 2009 15:36:03 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <96b40cab0909031025g1f9517b4q5215097361b0fc33@xxxxxxxxxxxxxx>
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>
References: <96b40cab0909031025g1f9517b4q5215097361b0fc33@xxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
2009/9/4 Zoran Popović <shoom013@xxxxxxxxx>:
> I use Red Hat 5.3 Dom0 (kernel 2.6.18-128.4.1.el5xen, xen 3.1, using default
> xenbridge0 configuration) and Red Hat 5.4 PV DomU (kernel 2.6.18-164.el5xen,
> xennet module for eth0), on a HP BL870c (Itanium blade) with gigabit network
> adapter (intel, probably).
> What is the expected throughput on Dom0 and DomU using 1 network card in
> such case (roughly, at least, and the ratio) ?
> I made few basic tests with smbclient and ftp download and I am getting
> around 18kb/s on Dom0 and 8kb/s on DomU, and I am suspicious about that.
> What can be done to improve the throughput on both ?

What is your throughput with native/non-xen kernel? It should be
similar, and if that's the case then the problem lies in your general
networking setup.

I can saturate 1 Gbps link easily when transfering data from dom0/domU
to external host. I'm using x86_64 btw, so probably your problem is


Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>