From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Ky Srinivasan" Subject: Re: [PATCH][RFC] Supporting Enlightened Windows2008Server Date: Tue, 08 Apr 2008 11:12:53 -0600 Message-ID: <48ABEC45.E57C.0030.0@novell.com> References: <47F9F6F7.E57C.0030.0@novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Tim Deegan , Keir Fraser Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org >>> On Mon, Apr 7, 2008 at 12:16 PM, in message , Keir Fraser wrote:=20 > On 7/4/08 15:28, "Ky Srinivasan" wrote: >=20 >> I do. On the NetBench runs we did, we were seeing close to 10% = improvement.=20 > I >> will keep you posted on other benchmark results as they become = available. >=20 > 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 server was a UP windows 2008 server guest. I suspect SMP numbers may = actually show more of an improvement. The clients were run on physical = machines. We used our PV drivers for windows (2008 server) to maximize the = I/O performance. >=20 > 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%! Agreed; without the PV drivers, it does not make any sense to run = NetBench. We have PV drivers that work with Windows 2008 server. Regards, K. Y >=20 > -- Keir >=20 >=20 >=20 > _______________________________________________ > Xen- devel mailing list > Xen- devel@lists.xensource.com > http://lists.xensource.com/xen- devel