From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Eu8Xa-0002j4-5p for qemu-devel@nongnu.org; Wed, 04 Jan 2006 08:18:58 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Eu8IP-0007XA-CE for qemu-devel@nongnu.org; Wed, 04 Jan 2006 08:03:24 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Eu7km-0000Q6-4g for qemu-devel@nongnu.org; Wed, 04 Jan 2006 07:28:34 -0500 Received: from [195.167.226.134] (helo=alinto.net) by monty-python.gnu.org with smtp (Exim 4.34) id 1Eu7m9-00035Q-N8 for qemu-devel@nongnu.org; Wed, 04 Jan 2006 07:29:58 -0500 Message-ID: <1136377601.43bbbf0178301@webmail.alinto.com> Date: Wed, 04 Jan 2006 13:26:41 +0100 From: octane indice MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] qemu-smp guest on monoCPU host: big slowdown Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Hello I'm trying to use the new -smp option. host: win2k guest: linux 2.6.13-SMP The first sight is a really big slowdown. with -smp 2, the guest seems to go approximatively to 1/4 speed of a monoCPU guest. I tried to boot with -smp 8, but it was so slow that I abandoned. Am I doing something wrong? Is it unavoidable? Some options to use to compile qemu, or to compile the SMP kernel? Thanks for all informations --------------------------------------------- Alinto vous souhaite une très bonne année 2006 http://www.alinto.com