<< I suspect it may have something to do with all of the web pages that hit
the 400 on a regular basis - I see an awful lot of QZDASOINIT jobs occupying
a fair chunk of CPU usage.>>
These jobs are causing most of your problems. They run at priority 20, the
same as the QINTER jobs. You can throttle them back to run at a lower
priority if your web application will permit it. You can also make them run
in a separate memory pool so that you're not competing with the QINTER or
other batch jobs.
I'd start looking there before engaging the *SPENDMONEY command.
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Brian Piotrowski
Sent: Monday, August 10, 2009 8:05 AM
To: Midrange Systems Technical Discussion
Subject: System Analysis Suggestions
I'm wondering if anyone can suggest a course of action to help determine out
bottlenecks in our AS400 and a plan to improve performance?
A few years ago we upgraded to a 520-9406 machine. However, I have noticed
over the past two years that our CPU usage has slowly been creeping up as
new programs have been added. As it stands right now, whenever I check CPU
usage I hardly ever see it below 80%. Usually it is in the 90%+ range. I
know it is frustrating to our users, and I can't blame them - I would hate
to wait for jobs to finish for long stretches at a time.
I would like to determine where the bottlenecks are occurring, and I wonder
if the group has any suggestions? Looking at the active jobs, I suspect it
may have something to do with all of the web pages that hit the 400 on a
regular basis - I see an awful lot of QZDASOINIT jobs occupying a fair chunk
of CPU usage. There are other jobs that run regularly that consume a fair
amount of usage as well.
Are there any free / built-in programs I can use to analyze the 400 to see
where and when these bottlenecks occur? I do have a HW/SW contract on the
400, so could I have IBM come in and perform an analysis on the system to
determine our problems? I'd hate to throw a bunch of money upgrading the
main storage/DASD/CPU to P20+ if that isn't really the problem (and I'm sure
our senior management group would be less than happy as well).
Any ideas would be most appreciated!
Assistant Mgr. - I.T.
Simcoe Parts Service, Inc.
Ph: 705-435-7814 x343