Tuning DECsystem 5820 + Ultrix 4.0???

[Michel Fingerhut]

Dear world,

We upgraded a couple of days ago from 3.1 to 4.0.  Although the process
itself was trivial (a matter of hours), the machine appears to be twice
as slow, although it should be somewhat faster, since 4.0 should make
use of both CPUs (and they are configured in, and started at boot time).
Actually, my feeling is that it is YP and/or NFS accesses that tremendously
slow the system (based on the fact that "ls -l" seems MUCH slower --
retrieval of login/group names?).  Since we did not change anything yet
from 3.1 (in the YP setup), I am puzzled.

Any pointers that might help me?

Thanks in advance,
Michael Fingerhut