From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Theurer Subject: Re: Windows Server 2008 VM performance Date: Wed, 03 Jun 2009 09:21:16 -0500 Message-ID: <4A2686DC.9050700@linux.vnet.ibm.com> References: <4A25942B.7010503@linux.vnet.ibm.com> <4A259BE8.4080403@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: KVM list To: Avi Kivity Return-path: Received: from e3.ny.us.ibm.com ([32.97.182.143]:56541 "EHLO e3.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754638AbZFCOVZ (ORCPT ); Wed, 3 Jun 2009 10:21:25 -0400 Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by e3.ny.us.ibm.com (8.13.1/8.13.1) with ESMTP id n53EGgo9013672 for ; Wed, 3 Jun 2009 10:16:42 -0400 Received: from d01av03.pok.ibm.com (d01av03.pok.ibm.com [9.56.224.217]) by d01relay02.pok.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id n53ELOKP257074 for ; Wed, 3 Jun 2009 10:21:24 -0400 Received: from d01av03.pok.ibm.com (loopback [127.0.0.1]) by d01av03.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n53ELMQe029253 for ; Wed, 3 Jun 2009 10:21:24 -0400 In-Reply-To: <4A259BE8.4080403@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Avi Kivity wrote: > Andrew Theurer wrote: > > >> Is there a virtio_block driver to test? > > There is, but it isn't available yet. OK. Can I assume a better virtio_net driver is in the works as well? > >> Can we find the root cause of the exits (is there a way to get stack >> dump or something that can show where there are coming from)? > > Marcelo is working on a super-duper easy to use kvm trace which can > show what's going on. The old one is reasonably easy though it > exports less data. If you can generate some traces, I'll have a look > at them. Thanks Avi. I'll try out kvm-86 and see if I can generate some kvm trace data. -Andrew