From: "M. Koehrer" <mathias_koehrer@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-help] Standard linux assignment of processes to CPUs depends on Xenomai Config
Date: Fri, 2 Feb 2007 16:36:04 +0100 (CET) [thread overview]
Message-ID: <24461688.1170430564542.JavaMail.ngmail@domain.hid> (raw)
Hi everybody,
I just noted another very interesting thing.
When I have the Xenomai support built directly into the kernel (no modules),
the Linux scheduler assigns all Linux tasks to CPU 0 (I have a SMP with a Dual Core CPU).
Using e.g. taskset I can of course force tasks to run on CPU 1 but it will not be done
automatically.
However, when I use modules for the Xenomai stuff, the Linux scheduler assigns
the tasks to both available CPUs...
This behaviour looks very strange to me...
My setup: Kernel 2.6.19.2, SMP, Pentium 4 D, Xenomai 2.3. + COW patches.
Any idea on this?!?
Thanks and regards
Mathias
--
Mathias Koehrer
mathias_koehrer@domain.hid
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next reply other threads:[~2007-02-02 15:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-02 15:36 M. Koehrer [this message]
2007-02-19 10:26 ` [Xenomai-help] Standard linux assignment of processes to CPUs depends on Xenomai Config Jan Kiszka
2007-02-19 11:01 ` Dmitry Adamushko
2007-02-19 11:13 ` M. Koehrer
2007-02-19 11:23 ` Philippe Gerum
2007-02-19 12:13 ` Dmitry Adamushko
2007-02-19 12:35 ` Philippe Gerum
2007-02-19 12:46 ` Dmitry Adamushko
2007-02-19 14:11 ` Philippe Gerum
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