From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=34245 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OgZET-00062f-Vh for qemu-devel@nongnu.org; Wed, 04 Aug 2010 04:21:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OgZES-0007M5-BX for qemu-devel@nongnu.org; Wed, 04 Aug 2010 04:21:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54292) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OgZES-0007Lt-1p for qemu-devel@nongnu.org; Wed, 04 Aug 2010 04:21:48 -0400 Message-ID: <4C592315.4010104@redhat.com> Date: Wed, 04 Aug 2010 11:21:41 +0300 From: Avi Kivity 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: Gleb Natapov , qemu-devel@nongnu.org, kvm@vger.kernel.org On 08/03/2010 10:13 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 ... An additional point in favour is that we have a method of resolving design arguments. No need to think, we have the spec in front of us. The arguments then devolve into interpretation of the spec. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.