Planned SMP Improvements

[Sebastian Huber]

Hello,

I added three tickets that will lead to a major improvement of the SMP 
capabilities of RTEMS in case we are able to implement them:

New watchdog handler implementation
https://devel.rtems.org/ticket/2554

Eliminate the Giant lock
https://devel.rtems.org/ticket/2555

Implement the O(m) Independence-Preserving Protocol (OMIP)
https://devel.rtems.org/ticket/2556

It takes several weeks of work to implement them and it will lead to 
major changes in core operating system components. Besides the increased 
complexity in the locking protocols I don't expect negative impact for 
the uni-processor configurations. Please review these tickets. I would 
be happy about feedback.

Maybe we can implement

Improve the SMP scheduler with arbitrary processor affinity support
https://devel.rtems.org/ticket/2510

as part of this years GSoC.

Once this is done we have a state-of-the-art real-time operating system 
for SMP systems in the single-process/multi-thread environment from my 
point of view.

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber at embedded-brains.de
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