Re: SCHE_RR/FIFO

Stephen C. Tweedie (sct@redhat.com)
Thu, 15 Jul 1999 12:23:45 +0100 (BST)


Hi,

On Wed, 14 Jul 1999 14:28:14 +0200, Sven Heursch
<Sven.Heursch@unibw-muenchen.de> said:

> Could it be that the scheduler in the kernel 2.2 has problems with the
> priority based scheduling algorithm SCHED_FIFO and SCHED_RR. The
> verification was made with two concurrent running processes with the
> real time priorities 30 and 99. Normaly the higher one should be
> scheduled first. But in Linux 2.2 that do not happend evereytime.

What test case breaks the rule for you? The scheduler's goodness
function should still absolutely prefer non-SCHED_OTHER processes.

--Stephen

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