From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=44849 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OgN1R-0008Rd-ST for qemu-devel@nongnu.org; Tue, 03 Aug 2010 15:19:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OgN1N-0005sD-43 for qemu-devel@nongnu.org; Tue, 03 Aug 2010 15:19:33 -0400 Received: from mail-qw0-f45.google.com ([209.85.216.45]:39975) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OgN1N-0005s9-0f for qemu-devel@nongnu.org; Tue, 03 Aug 2010 15:19:29 -0400 Received: by qwf6 with SMTP id 6so248556qwf.4 for ; Tue, 03 Aug 2010 12:19:28 -0700 (PDT) Message-ID: <4C586BBA.6000701@codemonkey.ws> Date: Tue, 03 Aug 2010 14:19:22 -0500 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35? References: <20100803162857.GX13789@amd.home.annexia.org> <4C584781.9040609@redhat.com> <4C5847CD.9080107@codemonkey.ws> <4C5848C7.3090806@redhat.com> <4C584982.5000108@codemonkey.ws> <4C584B66.5070404@redhat.com> <4C5854F1.3000905@codemonkey.ws> <4C5858B2.9090801@redhat.com> <4C585F5B.5070502@codemonkey.ws> <4C58635B.7020407@redhat.com> <20100803191346.GA28523@amd.home.annexia.org> In-Reply-To: <20100803191346.GA28523@amd.home.annexia.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Richard W.M. Jones" Cc: kvm@vger.kernel.org, Avi Kivity , Gleb Natapov , qemu-devel@nongnu.org On 08/03/2010 02:13 PM, Richard W.M. Jones wrote: > On Tue, Aug 03, 2010 at 09:43:39PM +0300, Avi Kivity wrote: > >> libguestfs does not depend on an x86 architectural feature. >> qemu-system-x86_64 emulates a PC, and PCs don't have -kernel. We >> should discourage people from depending on this interface for >> production use. >> > I really don't get this whole thing where we must slavishly > emulate an exact PC ... > History has shown that when we deviate, we usually get it wrong and it becomes very painful to fix. Regards, Anthony Liguori > Rich. > >