From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261253AbVFLWUY (ORCPT ); Sun, 12 Jun 2005 18:20:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261265AbVFLWUY (ORCPT ); Sun, 12 Jun 2005 18:20:24 -0400 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:24408 "EHLO g5.random") by vger.kernel.org with ESMTP id S261253AbVFLWUU (ORCPT ); Sun, 12 Jun 2005 18:20:20 -0400 Date: Mon, 13 Jun 2005 00:20:11 +0200 From: Andrea Arcangeli To: Karim Yaghmour Cc: Ingo Molnar , Kristian Benoit , linux-kernel@vger.kernel.org, paulmck@us.ibm.com, bhuey@lnxw.com, tglx@linutronix.de, pmarques@grupopie.com, bruce@andrew.cmu.edu, nickpiggin@yahoo.com.au, ak@muc.de, sdietrich@mvista.com, dwalker@mvista.com, hch@infradead.org, akpm@osdl.org, rpm@xenomai.org Subject: Re: PREEMPT_RT vs ADEOS: the numbers, part 1 Message-ID: <20050612222011.GG5796@g5.random> References: <42AA6A6B.5040907@opersys.com> <20050611191448.GA24152@elte.hu> <42AB662B.4010104@opersys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <42AB662B.4010104@opersys.com> X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jun 11, 2005 at 06:31:07PM -0400, Karim Yaghmour wrote: > The logger used two TSC values. One prior to shooting the interrupt to the > target, and one when receiving the response. Responding to an interrupt Real life RT apps would run the second rdtsc in user space and not kernel space, right? And thanks for your benchmarking efforts!