Recommended documentation
- Record of the unexpected performance
- Record of performance under another level of SMP/E
Follow this procedure to gather the recommended documentation and
report the problem.
Note: You should measure and discuss performance in terms of EXCP
counts and CPU time rather than wall-clock time, which can be affected
by conditions outside the control of SMP/E.
- Check to see whether any programs that do a lot of I/O operations,
such as Information Management System (IMS™),
were running when you noticed the degraded performance.
- Check to see whether you installed any engineering changes or
service to SMP/E or other products that may have degraded system performance.
- If the problem does not seem to be caused by another program or
an engineering change, rerun the job under your current level of SMP/E.
- Run the same job under a previous PTF level or release of SMP/E
to demonstrate a difference in performance. Use the same environment,
including the same operating system and DASD configuration.
- If there is a difference in performance, report the problem to
the IBM® Support Center.
After
asking for your account name, license number, and other customer identification,
the service representative will ask for a brief description of the
problem.