Re: Job Performance

[pytel@xxxxxxxxxx]

You may want to have a look at PEX (Performance Explorer). It's a standard
part of operating system.
It produces low-level trace data and it's a kind of not very easy to use -
if used indiscriminately, it can generate even more data than TRCJOB (by
orders of magnitude). But you can limit your trace to specific events -
such as entry/exit to procedure etc.
It also has a profiling mode, which can show you how much time was spent in
specific parts (statement ranges) of a running program.
PEX dumps its data to database files. Reports for PEX are part of
Performance Tools LPP (chargeable).
But there's also a nice GUI tool (free), which can show you PEX-collected
data in a graphical format. It can be downloaded from IBM website -
http://www.as400service.ibm.com/p_dir/pexgui.nsf.

Best regards
    Alexey Pytel



Dan.Tyer@smed.com on 03/25/99 04:09:16 PM

Please respond to RPG400-L@midrange.com

To:   RPG400-L@midrange.com
cc:    (bcc: Alexei Pytel/Rochester/IBM)
Subject:  Job Performance







I have an interactive process (a group of programs, bound and otherwise)
that is not performing as well as I would like.  I would like to know when
certain key events are occurring, such as the points in time that various
programs are called, when files get opened, etc.  If I can establish such
timings, it will allow me to identify the long-running processes, and I
will know where to focus my performance-enhancement efforts.

I know I could insert a process to log timestamps to a file at various
points in the programs, but I'm hoping for something a little less
invasive.  TRCJOB to an outfile probably has the information I'm looking
for, but it has so much more that I can't make sense of it with the naked
eye.  Any suggestions?


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