From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758582Ab3DYNJH (ORCPT ); Thu, 25 Apr 2013 09:09:07 -0400 Received: from www.linutronix.de ([62.245.132.108]:43858 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755786Ab3DYNJF (ORCPT ); Thu, 25 Apr 2013 09:09:05 -0400 Date: Thu, 25 Apr 2013 15:09:00 +0200 (CEST) From: Thomas Gleixner To: Steven Rostedt cc: Mike Galbraith , Sebastian Andrzej Siewior , Tim Sander , LKML , RT , Carsten Emde , John Kacur Subject: Re: [ANNOUNCE] 3.4.41-rt55-feat1 In-Reply-To: <1366894324.10248.6.camel@gandalf.local.home> Message-ID: References: <1366760662.9609.176.camel@gandalf.local.home> <2156546.QlsX0XyPQz@dabox> <51792277.8000205@linutronix.de> <1366893374.6139.5.camel@marge.simpson.net> <1366893787.10248.4.camel@gandalf.local.home> <1366894324.10248.6.camel@gandalf.local.home> User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 25 Apr 2013, Steven Rostedt wrote: > On Thu, 2013-04-25 at 14:46 +0200, Thomas Gleixner wrote: > > On Thu, 25 Apr 2013, Steven Rostedt wrote: > > > On Thu, 2013-04-25 at 14:36 +0200, Mike Galbraith wrote: > > > > hrtimer: fix hrtimer free zone build bug > > > > > > Perhaps the better solution is to select HIGH_RES_TIMERS when > > > PREEMPT_RT_FULL is selected? > > > > No, why ? > > Why not? ;-) > > Except for the lack of support, one would think that if you want real > time responses, you would also want a real time clock. Well, if your application is driven by an external interrupt, then you do not need highres timers at all. Thanks, tglx