Priority scheduling in 6.x

Pramod Srinivasan pramod at
Wed Jan 14 19:16:46 PST 2009


I have 3 threads low, medium and high , and the scheduling policy is set to
SCHED_FIFO. The priority of the threads are at 28,29,30 respectively. Looks
like on FreeBSD 6.x, the priority of the threads are not honored while
scheduling the threads, but the same test on FreeBSD 7.x seems to work fine.
Are there known issues with the priority scheduling in FreeBSD 6.x or am I
doing something wrong? (I am using libthr)

Any input highly appreciated.


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