As you may know, a few of us are experimenting with multi-runqueue
scheduler implementations. One area of concern is where to place
realtime tasks. It has been my assumption, that POSIX RT semantics
require a specific ordering of tasks such as SCHED_FIFO and SCHED_RR.
To accommodate this ordering, I further believe that the simplest
solution is to ensure that all realtime tasks reside on the same
runqueue. In our MQ scheduler we have a separate runqueue for all
realtime tasks. The problem is that maintaining a separate realtime
runqueue is a pain and results in some fairly complex/ugly code.
Since I'm not a realtime expert, I would like to ask if my assumption
about strict ordering of RT tasks is accurate. Also, is anyone aware
of other ways to approach this problem?
Thanks,
-- Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Nov 23 2001 - 21:00:14 EST