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 16:15:28 +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: >> It's certainly quite a bit shorter which is good. For the remaining stuff, >> do you have empirical evidence that performance is improved by it? >> > 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. > Furthermore, as MSFT defines new enlightenments, we can implement those > cleanly within this body of code. Additionally, there is value in claiming > that we support all the enlightenments needed for hosting enlightened win 2008 > servers. Do you know which hypercalls that benefit comes from? I see no reason to support more hypercalls than necessary (I certainly don't see the value in that as an end in itself). -- Keir