From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Theurer Subject: Re: Poor network performance in domU in unstable Date: Tue, 26 Apr 2005 16:13:43 -0500 Message-ID: <426EAF07.2010104@us.ibm.com> References: <426EA845.3030300@diku.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <426EA845.3030300@diku.dk> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jacob Gorm Hansen Cc: xen-devel , Steven Hand List-Id: xen-devel@lists.xenproject.org Jacob Gorm Hansen wrote: > Steven Hand wrote: > >>> with unstable as of April 21st, I am getting fairly bad networking >>> performance in my domUs, e.g 125Mbits/s TCP with iPerf over a >>> gigabit link, where dom0 gets around 700Mbits/s. >> >> >> >> Is this vanilla Xen/XenLinux or have you any local changes? > > > This is the vanilla versions, except using vmtools instead of xend. I > will try this with xend and report back to see if that helps anything. I am actually seeing the same thing, about 215 Mbit on domU using NAT. I don't beleive I saw this before April 21st as well. > > > Always worth upgrading to latest unstable in any case; binary chop > > on csets can help narrow things down. > > Yes, unfortunately the latest unstable crashes dom0 on domain creation > (as described by me and others on the list), which is why I picked at > random semi-recent version instead. Domain creation has crashed for me since 1.1367, and recent builds wont fully boot dom0 for me. -Andrew