From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LhLlE-0002S4-MR for qemu-devel@nongnu.org; Wed, 11 Mar 2009 06:34:04 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LhLlB-0002M3-Oc for qemu-devel@nongnu.org; Wed, 11 Mar 2009 06:34:04 -0400 Received: from [199.232.76.173] (port=45365 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LhLlB-0002Lo-JF for qemu-devel@nongnu.org; Wed, 11 Mar 2009 06:34:01 -0400 Received: from main.gmane.org ([80.91.229.2]:40539 helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LhLlB-0002Rg-8h for qemu-devel@nongnu.org; Wed, 11 Mar 2009 06:34:01 -0400 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LhLl7-0002VP-65 for qemu-devel@nongnu.org; Wed, 11 Mar 2009 10:33:57 +0000 Received: from 141.76.6.219 ([141.76.6.219]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 11 Mar 2009 10:33:57 +0000 Received: from usenet by 141.76.6.219 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 11 Mar 2009 10:33:57 +0000 From: Steffen Liebergeld Date: Wed, 11 Mar 2009 10:33:43 +0000 (UTC) Message-ID: References: <761ea48b0903091456r319a017dlda891b6eca800520@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: news Subject: [Qemu-devel] Re: Precise guest instruction count. 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 Hi, Laurent Desnogues schrieb: > On Mon, Mar 9, 2009 at 10:38 AM, Steffen Liebergeld wrote: > The variations you see are probably due to timing variations. Even in user > mode you can have slightly different results for code that for instance > prints elapsed time. I temporarily disabled timers in Qemu, so normally time should not influence my measurements. Greetings, Steffen