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Are the i/o files in the same ASP when the two jobs run?
Are the jobs being run at a different time of day/night?
Have you checked the jobs CPU times (the millisecond value in DSPJOB, run
attributes) - are these similar.
On the bottom line, you need to capture performance data while the jobs are
running, then analyse that.
If, as you say, the i/o files are comparable in size, the program processing
them identical then it's ...
   a) environmental - as you suggested, perhaps journalling or commitment
control
   b) data contention - perhaps the data is shared in one job (locks) and
exclusive in the other
   c) hardware contention - other apps are hogging memory, flooding disk
with i/o's
   d) data content - while the i/o files sizes may be comparable,
conditional processing is a possibility
   e) ... I dare say a brain-storming session could come up with a dozen
more, but this may stimulate a few more lines of investigation.

Good luck

Kind regards,

Jeffrey E. Bull
OS400 Software Support Consultant

IBM Certified Systems Expert, iSeries Technical Solutions
IBM Certified Systems Specialist, AS/400 System Administration

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ITM Group Ltd, Latimer Square, White Lion Road, Amersham, Buckinghamshire,
HP7 9JQ, United Kingdom


-----Original Message-----
From: murali dhar [mailto:hydchap1@xxxxxxxxx]
Sent: 04 May 2004 10:51
To: Midrange Systems Technical Discussion
Subject: Taking more time


Hai!!!
I have a CL program (YQRR10C) with almost identical
size of the input files and output files while running
in one library YQS36PP(PPMAIN) takes longer time than
while running in another library QS36F (FMAIN-Final
Batch Run).

The only thing I can think of is we might stop
Journaling/DataMirror during FMAIN but not PPMAIN. 
But YQS36PP library does not do any of them. 

Any ideas why is it so?


        
                
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