Planned SMP Improvements

Gedare Bloom gedare at rtems.org
Thu Jan 28 02:29:17 UTC 2016


On Wed, Jan 27, 2016 at 4:54 AM, Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
> 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:
>
Great write-ups thanks for this. Are you planning/budgeted to implement them?

> New watchdog handler implementation
> https://devel.rtems.org/ticket/2554
>
Otherwise, the watchdog is also feasible for a GSoC-scope project.

> 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
> PGP     : Public key available on request.
>
> Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
>
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