From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261612AbVFMPTA (ORCPT ); Mon, 13 Jun 2005 11:19:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261682AbVFMPSH (ORCPT ); Mon, 13 Jun 2005 11:18:07 -0400 Received: from opersys.com ([64.40.108.71]:56074 "EHLO www.opersys.com") by vger.kernel.org with ESMTP id S261612AbVFMPPU (ORCPT ); Mon, 13 Jun 2005 11:15:20 -0400 Subject: Re: PREEMPT_RT vs ADEOS: the numbers, part 1 From: Kristian Benoit To: Ingo Molnar Cc: Karim Yaghmour , linux-kernel@vger.kernel.org, paulmck@us.ibm.com, bhuey@lnxw.com, andrea@suse.de, 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 In-Reply-To: <20050613150021.GA5891@elte.hu> References: <42AA6A6B.5040907@opersys.com> <20050611191448.GA24152@elte.hu> <42AB662B.4010104@opersys.com> <20050613150021.GA5891@elte.hu> Content-Type: text/plain Date: Mon, 13 Jun 2005 11:12:30 -0400 Message-Id: <1118675550.5792.4.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2005-06-13 at 17:00 +0200, Ingo Molnar wrote: > FYI, there's a new feature in the -V0.7.48-25 (and later) -RT patches > that implements this: CONFIG_LPPTEST. It is a simple standalone > driver > and userspace utility from Thomas Gleixner that can be used to > measure > the IRQ-latency of the system over a null-modem-parallel-cable. Thanks a lot, I must check that and make an adeos and adeos/PREEMPT_RT version of it. That will probably provide different info than the simple driver I wrote. Kristian