From: Philippe Gerum <rpm@xenomai.org>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] Xenomai and normal linux application - Wait time with select() not reliable
Date: Wed, 04 Jul 2012 12:06:35 +0200 [thread overview]
Message-ID: <4FF415AB.2030503@xenomai.org> (raw)
In-Reply-To: <4FF402AD.3020601@xenomai.org>
On 07/04/2012 10:45 AM, Gilles Chanteperdrix wrote:
> On 07/04/2012 10:36 AM, Jens Köhler wrote:
>> Thank you for your response Gilles. I set thread to SCHED_FIFO policy
>> with chrt command, Prio 99. But there is no improvement. Also
>> nanosleep do not help. The kernel is 2.6.26. What could be reason that
>> kernel is not restart thread when time is over?
>
> It could be that the xenomai activity, if any, is running for long
> periods of time and causing linux ticks to be delayed. As usual, it
> would help if you could provide a self-contained test-case allowing us
> to reproduce the issue.
>
/proc/xenomai/stat as well, in case the rt activity changes mode a lot.
--
Philippe.
next prev parent reply other threads:[~2012-07-04 10:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-03 13:30 [Xenomai] Xenomai and normal linux application - Wait time with select() not reliable Jens Köhler
2012-07-03 21:53 ` Gilles Chanteperdrix
2012-07-04 8:36 ` Jens Köhler
2012-07-04 8:45 ` Gilles Chanteperdrix
2012-07-04 10:06 ` Philippe Gerum [this message]
2012-07-04 11:45 ` Jens Köhler
2012-07-04 12:04 ` Gilles Chanteperdrix
[not found] ` <CAL7_A_VQe-KGBoYq034hT=6CdJJPpwEQTs1EgDQ=325WjOfUzw@mail.gmail.com>
2012-07-04 12:57 ` Gilles Chanteperdrix
2012-07-04 13:10 ` Jens Köhler
2012-07-04 13:17 ` Jens Köhler
2012-07-04 13:22 ` Gilles Chanteperdrix
[not found] ` <CAL7_A_WTJUeWNTTra2t9veiyWMxC5VtpotocMHGPdU1v7QAxKA@mail.gmail.com>
[not found] ` <4FF44C52.6050809@xenomai.org>
[not found] ` <CAL7_A_VUC8JD9yeMnLt2iJQ0ex_at3QMhiL3cQ5CHPFh0rcJRA@mail.gmail.com>
[not found] ` <4FF585C4.1000708@xenomai.org>
2012-11-19 13:29 ` Jens Köhler
2012-11-19 13:42 ` Gilles Chanteperdrix
2012-12-03 7:59 ` Jens Köhler
2012-12-03 9:26 ` Gilles Chanteperdrix
2012-12-04 10:09 ` Jens Köhler
[not found] ` <CAL7_A_XHtj19V3gnog7_Hoer6UGxRJfoFwT0sgzQvhtARB3b9A@mail.gmail.com>
2013-01-21 12:09 ` Gilles Chanteperdrix
[not found] ` <CAL7_A_Wkjj1mTeDcEfDzPKFkQhiYeChPgC=ggVkedxqy=yaLng@mail.gmail.com>
2013-01-21 18:48 ` Gilles Chanteperdrix
2012-07-04 13:33 ` Philippe Gerum
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