From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: [PATCH][RFC] Supporting Enlightened Windows2008Server Date: Mon, 07 Apr 2008 17:16:31 +0100 Message-ID: References: <47F9F6F7.E57C.0030.0@novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <47F9F6F7.E57C.0030.0@novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ky Srinivasan , Tim Deegan Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 7/4/08 15:28, "Ky Srinivasan" wrote: > I do. On the NetBench runs we did, we were seeing close to 10% improvement. I > will keep you posted on other benchmark results as they become available. I forgot to ask in my previous email what the configuration was for this netbench test. For example, was it a UP or SMP guest? Where did the netbench clients run? Did you run with PV drivers? The latter is particularly relevant, as measuring I/O performance of an HVM guest without PV I/O drivers is particularly useful. Unfortunately I'm not sure whether anyone has got the GPL PV drivers working with Server 2008 as yet. But if not that would seem a more useful step towards w2k8 performance than Viridian emulation, imo. I bet if you compare XP performance on netbench with versus without the GPL PV drivers, the difference is more than 10%! -- Keir