Xen project Mailing List

Re: [Xen-users] How to: Improve Network Throughput of a XEN kernel?

To: xen-users@xxxxxxxxxxxxxxxxxxx, Mike Viau <viaum@xxxxxxxxxxxxxxx>

From: Boris Derzhavets <bderzhavets@xxxxxxxxx>

Date: Fri, 26 Feb 2010 09:16:59 -0800 (PST)

Delivery-date: Fri, 26 Feb 2010 09:18:52 -0800

Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type; b=L2Pnm51V9yt8cP8NuPaX2Wqa8DEz4+edk6RLDoepkXnpRwtZXSN5/i+vNRRr6h3OB/OQUMiEwr3nOozbdThfeiq/s5zrlomAZxXQeiFwjP7D8+rEcsQ85KPenUZd/MvgQZyCSz6HL1GOEgTMJFQfBH1mIBTpGSyuSmLfBqyGWRk=;

List-id: Xen user discussion <xen-users.lists.xensource.com>

Would escalate to xen-devel. 2.6.31.8 (12) aka Suse xenified was Jan Beulich stuff.
He might have an answer.
Boris.

--- On Fri, 2/26/10, Mike Viau <viaum@xxxxxxxxxxxxxxx> wrote:

From: Mike Viau <viaum@xxxxxxxxxxxxxxx>
Subject: [Xen-users] How to: Improve Network Throughput of a XEN kernel?
To: xen-users@xxxxxxxxxxxxxxxxxxx
Cc: waldi@xxxxxxxxxx
Date: Friday, February 26, 2010, 12:09 PM

Hi there,

I am starting a new thread to try and solve a problem I am having will slow network throughput to the XEN host (not to a domU).

I have confirmed my problem occurs with PVOPS 'xen/master' kernel as well using http://pasik.reaktio.net/xen/pv_ops-dom0-debug/config-2.6.31.6-pvops-dom0-xen-master-x86_64 as the .config.

It also occurs with a forward ported xenified kernel (2.6.31.12) using the attached config-11-xen (.config).

However when using the xen kernel found in debain lenny (2.6.26-2) for the amd64 architecture I get similiar transfer rates to my Xen host as I do on a baremetel kernel.

Bastian Blank perhaps you could point me in the right direction in regards to a debian specific customization or patch I should be aware of?

Maxium transfer rate (to/from hard disk) using the PVOPS 'xen/master' kernel and forward ported xenified kernel (2.6.31.12) is bottlenecking at ~1MB/s. On the debain lenny xen kernel I am getting ~4.5MB/s.

I was hoping one could suggest options in the .config that might be modified in order to improve network throughput of a XEN kernel and therefor increase the data transfer rates over the netowork to and from the Xen host.

Thanks alot for any help! As always I will be willing to accept any suggestions :)

-M

Live connected with Hotmail on your phone. Learn more.

-----Inline Attachment Follows-----

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

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