CONFIG_PREEMPT_RT in real-world applications
From: Sven Geggus (sven-im-usenet_at_gegg.us)
Date: 10/27/05
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Date: Thu, 27 Oct 2005 07:46:54 +0000 (UTC)
Hello embedded-linux folks,
I am kind of confuded how a piece of realtime code would look like using
Ingo Molnars CONFIG_PREEMPT_RT patch.
What would I need to make a process realtime. How would I be able to
generate a somewhat exact timing, e.g. for a control circuit. From the
perspective of a normal Linux system programming guy /dev/rtc comes
to mind.
For the realtime stuff, would it be enough to just use a negative nice-level
and a SCHED_FIFO policy?
Is there any kind of realtime programming Howto which I have not found
searching the web? Or is this just an exmple of another piece of fine but
undocumented work which is quite common in the Open-Source world?
Sven
--
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