From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: rpm@xenomai.org
Cc: Jan Kiszka <jan.kiszka@domain.hid>, xenomai-core <xenomai@xenomai.org>
Subject: [Xenomai-core] Re: SVN checkin #2010
Date: Tue, 02 Jan 2007 14:30:58 +0100 [thread overview]
Message-ID: <459A5E92.6030504@domain.hid> (raw)
In-Reply-To: <1167744149.30347.2.camel@domain.hid>
Philippe Gerum wrote:
> On Tue, 2007-01-02 at 11:20 +0100, Jan Kiszka wrote:
>
>>Hi all - and happy new year,
>>
>>I haven't looked at all the new code yet, only the commit messages. I
>>found something similar to my fast-forward-on-timer-overrun patch in
>>#2010 and wondered if Gilles' original concerns on side effects for the
>>POSIX skin were addressed [1]. I recalled that my own final summary on
>>this was "leave it as it is" [2].
>>
>
>
> The best approach is to update the POSIX skin so that it does not rely
> on the timer code to act in a sub-optimal way; that's why this patch
> found its way in. Scheduling and processing timer shots uselessly is a
> bug, not a feature in this case.
There is some work to be done on the posix skin anyway, this will all be
at once. By the way, I tested the trunk on ARM, and I still get a lockup
when the latency period is too low. I wonder if we should not compare to
"now + nkschedlat", or even use xnarch_get_cpu_tsc() instead of "now".
--
Gilles Chanteperdrix
next prev parent reply other threads:[~2007-01-02 13:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-02 10:20 [Xenomai-core] SVN checkin #2010 Jan Kiszka
2007-01-02 13:22 ` [Xenomai-core] " Philippe Gerum
2007-01-02 13:30 ` Gilles Chanteperdrix [this message]
2007-01-02 13:49 ` Philippe Gerum
2007-01-02 13:56 ` Gilles Chanteperdrix
2007-01-02 14:13 ` Philippe Gerum
2007-01-02 14:22 ` Jan Kiszka
2007-01-02 14:32 ` Gilles Chanteperdrix
2007-01-02 15:07 ` Philippe Gerum
2007-01-02 15:07 ` Jan Kiszka
2007-01-03 9:09 ` Gilles Chanteperdrix
2007-01-03 17:47 ` Philippe Gerum
2007-01-02 14:53 ` Philippe Gerum
2007-01-02 15:28 ` [Xenomai-core] Timer patches evaluation (was: SVN checkin #2010) Jan Kiszka
2007-01-02 16:19 ` [Xenomai-core] " Philippe Gerum
2007-01-03 9:31 ` [Xenomai-core] Re: Timer patches evaluation Gilles Chanteperdrix
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