linux-kernel - Re: [ANNOUNCE] 3.4.41-rt55-feat1

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Date:	Thu, 25 Apr 2013 15:09:00 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Steven Rostedt <rostedt@...dmis.org>
cc:	Mike Galbraith <bitbucket@...ine.de>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Tim Sander <tim.sander@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	RT <linux-rt-users@...r.kernel.org>,
	Carsten Emde <C.Emde@...dl.org>, John Kacur <jkacur@...hat.com>
Subject: Re: [ANNOUNCE] 3.4.41-rt55-feat1

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

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