From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: dom0 kernel v2.6.32.41 network problem Date: Fri, 15 Jul 2011 14:19:33 -0400 Message-ID: <20110715181933.GA18907@dumpdata.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Hui Kang Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On Fri, Jul 15, 2011 at 05:54:11PM +0000, Hui Kang wrote: > 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. Weird. No idea - I get around 911Mb/s with my dom0 - which is 3.0.0-rc7. Do you have some debug options turned on? > > - Hui > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel