George's annual rant (brief)

I've just tried my annual test of SCHED_4BSD Vs. SCHED_ULE on
13.3-RELEASE-p4.  I run a "make buildworld" with the port misc/dnetc
running.  (It's a totally compute-bound process that gobbles up all
available CPU cycles, but runs at "nice 20".)  Run time in seconds:

dnetc            SCHED_ULE                SCHED_4BSD
running          56185                    25819
not running      19372                    20319

This machine is also an NFS file server, but usually with a very
low load.

I have been assured may times that there exists a set of conditions
where SCHED_ULE will outperform SCHED_4BSD, but no one seems to know
what they are.

That's all from me on this subject for this year.           -- George