On 05/08/2012 09:23 AM, Jonas Flodin wrote:
Hi!
I'm a PhD student who is currently doing research on multicore real-time
scheduling. I'm considering using Xenomai as a base for my research
experiments, but this would require me to replace or extend the current
scheduler. So far I have found no documents detailing how the scheduler
is implemented or how to extend it (if possible). Could you point me to
information regarding the scheduler?
There is no documentation on the scheduling core. You should probably
start with ksrc/nucleus/sched*.c, and include/nucleus/sched*.h, having a
look at the files implementing the plain FIFO policy in sched-rt*.
Hint: the scheduling core is meant to be extensible, adding a new policy
entails providing an implementation for a new struct xnsched_class
object. Make sure to read the comments in the files implementing the
existing policies (-rt, -sporadic, -tp), they usually mention details on
the calling context and requirements for the handlers defined by the
xnsched_class type.
Thank you in advance.
BR
Jonas Flodin
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Philippe.
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