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Re: [Xen-users] Network performance problem

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Network performance problem
From: Fridtjof Busse <fbusse@xxxxxx>
Date: Wed, 19 Dec 2007 20:01:46 +0100
Cc: Ralf Kaestner <Ralf.Kaestner@xxxxxx>
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* Ralf Kaestner <Ralf.Kaestner@xxxxxx>:
> Has the guest enabled any TCP task offloading (if yes try turning it
> off)?

You already gave me the right hint, without me noticing:
'ethtool -K eth0 tx off' in the domUs.
That immediatly fixed the problem. Thanks!
Question remains: Why does it fix the problem? I never had to do that
with kernel 2.6.18 (Xen 3.1.0) from XenSource.

Fridtjof Busse

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