Speeding up the 3B2...

[Ron Heiby]

In article <292 at timeinc.UUCP> greenber at timeinc.UUCP (Ross M. Greenberg) writes:
>Claims that a program (written in CoBlech) takes about two minutes
>to run on his vanilla PC-AT and over fifteen minutes to run on the
>3B2.

You don't mention what version of System V your friend is running on the
3B2.  Is it 1.0, 1.0.1, SVR2v1, SVR2v2, or SVR2.1 (or something I never
heard of)?  What Cobol is being used?  Does it compile to pseudo-code that
is then interpreted by a "runcobol" command?  Does it do a lot of floating
point arithmetic?  We all know that the 3B2/300 has rather marginal floating
point emulated in software.  You don't even mention what configuration 3B2
you are talking about.  Is it a 3B2/400 with math co-processor (MAU)?

Without these details, it's really hard to come up with any solution, but
(assuming you are talking about SVR2v1 or later) you should look in the
System Administrator's Guide under performance and system tuning to find
out what the tunable parameters do and how to adjust them.  Are you using
one or two hard disks?  If two, put /usr on the second drive.

More details get better answers.  Good luck.
-- 
Ron Heiby	heiby at cuae2.UUCP	(via ihnp4)
AT&T-IS, /app/eng, Lisle, IL	(312) 810-6109