https://www.fmtc.be/bugzilla/orocos/show_bug.cgi?id=739

Peter Soetens <peter [..] ...> changed:

What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |next-bugfix
Resolution| |FIXED
Status|NEW |RESOLVED

--- Comment #3 from Peter Soetens <peter [..] ...> 2010-12-21 10:55:41 ---
We can Run Xenomai threads in sched_fifo with priority zero since RTT-1.12.0
without causing modeswitches. This requires Xenomai > 2.5.0

https://www.fmtc.be/bugzilla/orocos/show_bug.cgi?id=739

--- Comment #2 from Peter Soetens <peter [..] ...> 2010-01-08 15:42:54 ---
(In reply to comment #1)
> (In reply to comment #0)
> > The current scheduler setting in Xenomai is implemented by forcing mode
> > switches, which is completely rediculous since Xenomai will switch us back to
> > the primary domain from the moment it has a chance.
> >
> > The solution seems to be to map the scheduler settings to
> > SCHED_OTHER/SCHED_FIFO, just like in the gnulinux fosi. Once the thread is
> > running in SCHED_FIFO, it switches to the primary domain, otherwise it runs
> > with priority 0 in SCHED_OTHER.
> >
> > I need to test this to figure out if this will actually work though.
>
> Any news on this one? (see
> <http://www.orocos.org/forum/orocos/orocos-users/new-110-activity-model-creates-useless-threads#comment-5544>

Not fixed yet in any branch. I don't have time yet for this.

Peter

https://www.fmtc.be/bugzilla/orocos/show_bug.cgi?id=739

--- Comment #1 from Klaas Gadeyne <klaas [dot] gadeyne [..] ...> 2010-01-08 10:40:37 ---
(In reply to comment #0)
> The current scheduler setting in Xenomai is implemented by forcing mode
> switches, which is completely rediculous since Xenomai will switch us back to
> the primary domain from the moment it has a chance.
>
> The solution seems to be to map the scheduler settings to
> SCHED_OTHER/SCHED_FIFO, just like in the gnulinux fosi. Once the thread is
> running in SCHED_FIFO, it switches to the primary domain, otherwise it runs
> with priority 0 in SCHED_OTHER.
>
> I need to test this to figure out if this will actually work though.

Any news on this one? (see
<http://www.orocos.org/forum/orocos/orocos-users/new-110-activity-model-creates-useless-threads#comment-5544>