Re: SCHED_RR/SCHED_FIFO and kernel threads?

From: Lee Revell
Date: Tue Jun 21 2005 - 19:27:10 EST

On Wed, 2005-06-22 at 00:18 +0200, Patrik Hägglund wrote:
> The only clean solution is probably to have priorities that are
> exclusively reserved for use by the kernel. I saw that kernel threads
> in LynxOS may use a priority of 1/2 above of the user-space tasks it
> serves. This seems like a good solution to the problem.

No, it's not, because some SCHED_FIFO/SCHED_RR threads do not need any
kernel services, and are perfectly happy with stalling the rest of the
kernel until they're done.


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