Re: Performance Tuning.

[nina jones <ddi@xxxxxxxxxxxxxxxxx>]

> Our client has asked us to analyze their AS/400s and applications (RPG,
> RPG36, COBOL) to identify possibilities of performance improvement. Can
> anyone out there give me directions to do this?! I am trying to prepare a
> check list as to what to look for with respect to system settings &
> variables, work management settings, inefficient CL commands, inefficient
> RPG opcodes etc. Any help is appreciated. Thanks much.

a couple of things we do:

for system values, there are options for total active jobs, and total
jobs.  they come with really low numbers, bump them up.  for example the
total active jobs comes at 30, and needs to be at least 100 for even a
small system.  do a wrkactjob, and use the # of jobs as your guide. 

total jobs comes from your old job logs, etc, and that # is from
wrksyssts.  

another thing that will kill you is running batch jobs interactively, if
they take any time at all.  and a big no-no is running these types of
jobs from the system console.  it will bring everyone else to a
screeching halt.


nj
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