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From: ZIV-Alberto Ozalla Cantabrana <alberto.ozalla@cgglobal.com>
To: "gilles.chanteperdrix@xenomai.org" <gilles.chanteperdrix@xenomai.org>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: Re: [Xenomai] rt_task_sleep_until() miss release point?
Date: Thu, 6 Nov 2014 15:52:45 +0000	[thread overview]
Message-ID: <545B994D.1080008@cgglobal.com> (raw)
In-Reply-To: <20141106153738.GC30908@sisyphus.hd.free.fr>

Hi all,

Sorry about missing references to function cu_log().
You can omit cu_log calls (It is like printf).
There are in place to see where the log traces are taken.

Regards
Alberto
On 06/11/14 16:37, Gilles Chanteperdrix wrote:
> On Thu, Nov 06, 2014 at 03:24:08PM +0000, ZIV-Alberto Ozalla Cantabrana wrote:
>> Hi all,
>>
>> enclosed you will find two examples:
>>
>>    *   rt_task_sleep_until() missing release point, and
>>    *   rt_task_sleep_until() working fine.
>>
>> In the first example:
>>
>> Current time: t1=4205571 ms - Calculated next release point: t2= 4205572 ms
>> Real release: t3=4205574 ms
>>
>> Many Thanks
>> Alberto Ozalla
>>
>> Simplest example that shows the issue:
> When you post an example, please post a "self contained" one, i.e.
> one that can be compiled and run without:
> - any missing code or ellipses
> - references to functions not contained in the code or xenomai
> librairies, such as cu_log.
>
>> #1 SMP 20<6>kernel: [    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
> You do not need CONFIG_SMP on an uniprocessor, this adds some
> overhead. The overhead is mitigated on Xenomai 3, but not on xenomai
> 2.x.
>

-- 
Saludos,
Alberto Ozalla


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  reply	other threads:[~2014-11-06 15:52 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-06 15:24 [Xenomai] rt_task_sleep_until() miss release point? ZIV-Alberto Ozalla Cantabrana
2014-11-06 15:37 ` Gilles Chanteperdrix
2014-11-06 15:52   ` ZIV-Alberto Ozalla Cantabrana [this message]
2014-11-06 15:55     ` Gilles Chanteperdrix
2014-11-06 16:46       ` ZIV-Alberto Ozalla Cantabrana
2014-11-06 20:22         ` Philippe Gerum
2014-11-07  9:25           ` ZIV-Alberto Ozalla Cantabrana
2014-11-07  9:37             ` Gilles Chanteperdrix
2014-11-07  9:42         ` Philippe Gerum

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