From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Theurer Subject: Re: Re: HVM network performance Date: Fri, 05 May 2006 13:56:16 -0500 Message-ID: <445B9FD0.6050800@us.ibm.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: 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: Andi Kleen Cc: Steve Dobbelstein , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Andi Kleen wrote: > Steve Dobbelstein writes: > >> I don't see any obvious problems in the Xenoprof output. Anyone with >> experience with the inner workings of HVM domains care to comment on what >> might be causing the network performance to suffer so much? >> > > You'll never get good throughput either from a NE2000 nor from a pcnet32 > model. > That was a suspicion of mine, but I wasn't sure. I wonder if qemu-dm could emulate another adapter (if so, which one would be best?) or do we just punt and go for para-virt drivers. -Andrew