From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: Xen domU support merged into upstream Linux Date: Mon, 30 Jul 2007 09:14:30 -0700 Message-ID: <46AE0E66.1070607@goop.org> References: <469E7103.3060209@xensource.com> <200707241807.56329.mark.williamson@cl.cam.ac.uk> <46A6962D.9000706@goop.org> <1185810053.13739.11.camel@soyuz.6com.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1185810053.13739.11.camel@soyuz.6com.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: jan.oravec@6com.sk Cc: xen-devel@lists.xensource.com, Mark Williamson List-Id: xen-devel@lists.xenproject.org Jan Oravec wrote: > I tend to believe there are more pre-HVM 64-bit guests than 32-bit > guests. 64-bit CPUs are mainstream for a few years and 32-bit-only > server systems are getting old. Almost everyone I know with 64-bit CPUs > prefers to run 64-bit Linux over 32-bit. > > So, I think it is worth to support pre-HVM 64-bit guests. Well, traditionally 64-bit guests have suffered a particularly steep performance hit under Xen, so I suspect that a lot of people with 64-bit hosts are still tending to use 32-bit guests. But I'm just handwaving really. J