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From: Steven Rostedt <rostedt@goodmis.org>
To: Armin Steinhoff <armin@steinhoff.de>
Cc: Nivedita Singhvi <niv@us.ibm.com>, David Kastrup <dak@gnu.org>,
	linux-rt-users@vger.kernel.org
Subject: Re: preempt rt in commercial use
Date: Thu, 16 Sep 2010 15:38:32 -0400	[thread overview]
Message-ID: <1284665912.23787.49.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <4C926F95.7080009@steinhoff.de>

On Thu, 2010-09-16 at 21:27 +0200, Armin Steinhoff wrote:
> Hi Steven,
> 
> I don't know what a "long" deadline is ... is is something like this:
> http://harolds-planet.blogspot.com/2006/02/how-to-deal-with-deadlines.html

cute.

> 
> Cheers
> 
> --Armin
> 
> PS: I think you mean a time range where results are treated as delivered 
> timely ?

Yes, I think people understood what I meant. By "long deadline" I meant
the time needed for an event to happen or critical section to finish is
so large that it should be easy for the event to occur or a critical
section to finish within that time range.

In a rate monotonic scenario, I usually consider 3 time ranges. Period,
deadline and runtime. Where, period >= deadline >= runtime. Usually
runtime is deadline - (enough for some delta). Thus, when I say
deadline, that is just a shorter version of "time it takes where a
deadline must be reached".


-- Steve



  reply	other threads:[~2010-09-16 19:38 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-14  8:10 preempt rt in commercial use Raz
2010-09-14  9:04 ` Rolando Martins
2010-09-14  9:10   ` Raz
2010-09-14  9:20     ` Rolando Martins
2010-09-14  9:17 ` Nikita V. Youshchenko
2010-09-14  9:24   ` Raz
2010-09-14  9:44     ` Robert Schwebel
2010-09-14 12:16       ` Armin Steinhoff
2010-09-14 13:04         ` Daniel James
2010-09-14 13:08         ` Pradyumna Sampath
2010-09-14 22:11           ` Nivedita Singhvi
2010-09-14 13:09         ` Klaas van Gend
2010-09-14 13:17         ` David Kastrup
2010-09-14 13:37           ` Darcy Watkins
2010-09-14 13:58         ` Patrice Kadionik
2010-09-14 14:21       ` Jeff Angielski
2010-09-14 14:30         ` Nikita V. Youshchenko
2010-09-14 14:49           ` Jeff Angielski
2010-09-14 22:20             ` Nivedita Singhvi
2010-09-15  7:48               ` Armin Steinhoff
2010-09-15 14:09                 ` Nivedita Singhvi
2010-09-15 14:45                   ` Pradyumna Sampath
2010-09-16 10:17                     ` Daniel James
2010-09-16 10:35                       ` Pradyumna Sampath
2010-09-16 15:19                       ` Raz
2010-09-15 15:38                   ` David Kastrup
2010-09-15 16:02                     ` Nivedita Singhvi
2010-09-15 16:20                       ` David Kastrup
2010-09-16  0:44                         ` Steven Rostedt
2010-09-16 15:27                           ` Nivedita Singhvi
2010-09-16 17:30                             ` Steven Rostedt
2010-09-16 19:27                               ` Armin Steinhoff
2010-09-16 19:38                                 ` Steven Rostedt [this message]
2010-09-15 13:33             ` Thomas Gleixner
2010-09-14 14:44         ` Pradyumna Sampath
2010-09-15 12:48           ` Sergio Ruocco
2010-09-15 12:53             ` Pradyumna Sampath
2010-09-15 14:58             ` Paul E. McKenney
2010-09-15 16:27             ` Sven-Thorsten Dietrich
2010-09-16  0:49               ` Steven Rostedt
2010-09-16  5:06                 ` David Kastrup
2010-09-14 14:56         ` Armin Steinhoff
2010-09-14 15:42         ` Patrice Kadionik
2010-09-14 17:38         ` Gregory Haskins
2010-09-14 22:09           ` Nivedita Singhvi
2010-09-15  6:22             ` Patrice Kadionik
     [not found]               ` <4C90CF71.2050205@us.ibm.com>
2010-09-15 13:56                 ` Patrice Kadionik
2010-09-15 14:08               ` Steven Rostedt
2010-09-14 10:06   ` Klaas van Gend
2010-09-14 11:00     ` David Kastrup
2010-09-14  9:28 ` Pradyumna Sampath
2010-09-14 14:13 ` Reagan Thomas
2010-09-15  7:09   ` AW: " Lukas Redlinger
2010-09-15  3:38 ` jordan
2010-09-15  8:59   ` Klaas van Gend
2010-09-15 11:03     ` TinxCore and PREEMPT_RT Armin Steinhoff
2010-09-16  9:38       ` Armin Steinhoff
2010-09-16 10:18         ` David Kastrup
2010-09-16 11:25           ` Mike Galbraith
2010-09-16 11:51           ` Armin Steinhoff
2010-09-15 14:03     ` preempt rt in commercial use Nivedita Singhvi
2010-09-15 17:29       ` Reagan Thomas
2010-09-16 10:39         ` Daniel James
2010-09-16 20:47           ` jordan
2010-09-16 10:07   ` Daniel James
2010-09-16 20:37     ` jordan

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