From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=44669 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OgiXf-0000Fw-BP for qemu-devel@nongnu.org; Wed, 04 Aug 2010 14:18:16 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OgiXe-00033x-AG for qemu-devel@nongnu.org; Wed, 04 Aug 2010 14:18:15 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12298) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OgiXe-00033o-2C for qemu-devel@nongnu.org; Wed, 04 Aug 2010 14:18:14 -0400 Message-ID: <4C59AEDF.6020505@redhat.com> Date: Wed, 04 Aug 2010 21:18:07 +0300 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] Anyone seeing huge slowdown launching qemu with Linux 2.6.35? References: <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> <20100804174601.GH28523@amd.home.annexia.org> 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 09:13 PM, Alexander Graf wrote: > >> It's not trivial mind you, and won't happen straightaway. Part of it >> is that it requires reworking the appliance builder (a matter of just >> coding really). The less trivial part is that we have to 'hide' the >> CD device throughout the publically available interfaces. Then of >> course, a lot of testing. > Why not go with 9p? That would save off even more time, as you don't have to generate an iso. You could just copy all the relevant executables into tmpfs and boot from there using your kernel and a very small (pre-built) initrd. Yes - and you don't need to copy, just hardlink if your /tmp and /usr are on the same filesystem. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.