From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35? Date: Wed, 04 Aug 2010 20:35:50 +0300 Message-ID: <4C59A4F6.9050203@redhat.com> References: <20100803190525.GB16570@redhat.com> <4C586AB9.5040302@codemonkey.ws> <4C586CF9.7030206@redhat.com> <4C588804.5060803@redhat.com> <4C590046.2020705@redhat.com> <4C591D48.9080301@redhat.com> <4C592218.3000901@redhat.com> <4C596549.1070109@codemonkey.ws> <20100804130709.GL10499@redhat.com> <4C5967D8.7080707@codemonkey.ws> <20100804133401.GP10499@redhat.com> <4C5970AC.6060105@codemonkey.ws> <4C5995B4.90505@redhat.com> <4C5996F4.6010205@redhat.com> <721C3046-D6A7-47B2-A18C-4E59F2B68797@suse.de> <4C59A2AE.2060602@codemonkey.ws> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Anthony Liguori , Gleb Natapov , Gerd Hoffmann , "Richard W.M. Jones" , qemu-devel@nongnu.org, kvm@vger.kernel.org To: Alexander Graf Return-path: Received: from mx1.redhat.com ([209.132.183.28]:59352 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751314Ab0HDRgA (ORCPT ); Wed, 4 Aug 2010 13:36:00 -0400 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On 08/04/2010 08:31 PM, Alexander Graf wrote: > > Even better yet, why not use virtio-9p and expose all of fw_cfg as files? Then implement a simple virtio-9p client in SeaBIOS and maybe even get direct kernel/initrd boot from a real 9p system ;). > libguestfs could use 9pfs directly. That will be way faster and reduce the footprint dramatically (the guest will demand load only the pages it needs). -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=41642 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Oghsl-00045k-25 for qemu-devel@nongnu.org; Wed, 04 Aug 2010 13:36:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1Oghsj-0004NO-RJ for qemu-devel@nongnu.org; Wed, 04 Aug 2010 13:35:58 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53790) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Oghsj-0004NA-Eu for qemu-devel@nongnu.org; Wed, 04 Aug 2010 13:35:57 -0400 Message-ID: <4C59A4F6.9050203@redhat.com> Date: Wed, 04 Aug 2010 20:35:50 +0300 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35? References: <20100803190525.GB16570@redhat.com> <4C586AB9.5040302@codemonkey.ws> <4C586CF9.7030206@redhat.com> <4C588804.5060803@redhat.com> <4C590046.2020705@redhat.com> <4C591D48.9080301@redhat.com> <4C592218.3000901@redhat.com> <4C596549.1070109@codemonkey.ws> <20100804130709.GL10499@redhat.com> <4C5967D8.7080707@codemonkey.ws> <20100804133401.GP10499@redhat.com> <4C5970AC.6060105@codemonkey.ws> <4C5995B4.90505@redhat.com> <4C5996F4.6010205@redhat.com> <721C3046-D6A7-47B2-A18C-4E59F2B68797@suse.de> <4C59A2AE.2060602@codemonkey.ws> In-Reply-To: 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: Alexander Graf Cc: Gleb Natapov , kvm@vger.kernel.org, qemu-devel@nongnu.org, "Richard W.M. Jones" , Gerd Hoffmann On 08/04/2010 08:31 PM, Alexander Graf wrote: > > Even better yet, why not use virtio-9p and expose all of fw_cfg as files? Then implement a simple virtio-9p client in SeaBIOS and maybe even get direct kernel/initrd boot from a real 9p system ;). > libguestfs could use 9pfs directly. That will be way faster and reduce the footprint dramatically (the guest will demand load only the pages it needs). -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.