From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <50FD8D97.20706@xenomai.org>
Date: Mon, 21 Jan 2013 19:48:55 +0100
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai] Xenomai and normal linux application - Wait time with
 select() not reliable
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On 01/21/2013 03:42 PM, Jens K=C3=B6hler wrote:

> Hi Gilles,
>=20
>> Using a Linux semaphore causes a switch to secondary mode, which means=

>> potentially unbounded latencies.
>=20
> Yes, I have no problem with the secondary mode. I have only the
> problem that linux kernel not restarts sleeping task as fast as
> expected. Instead 3 ms -> 50 ms. And it happens only when a linux
> semaphore is in use. Do you have an idea why this happens and how to
> find reason?


If this issue is not due to xenomai, then the xenomai mailing list may
not be the best place to ask.

>=20
>=20
>=20
>> Please keep the list in CC.
> What means CC ?


Carbon Copy

--=20
                                                                Gilles.