RE: Taking more time -- MIDRANGE-L

Thanks Vern and Jeff, I found PPMAIN is running slow
since its doing lot of global processing at same
time(CPU & DISK), and also saw Journalling as one of
the reasons.
Thanks for your help
best wishes,
Murali.
--- Vern Hamberg <vhamberg@xxxxxxxxxxxxxxxxxxxxxxxxx>
wrote:
> Murali
> 
> DSPOBJD or DSPFD will give you the ASP.
> 
> As the other post said, check CPU time vs. elapsed
> time - if CPU times are 
> the same, then something else is taking cycles at
> the time of one of the 
> programs.
> 
> How much difference in time, how many records, etc.?
> Is there a condition 
> that adds more processing in one run and not the
> other? Maybe some writes 
> in the earlier one?
> 
> Try running DSPFD on both files, with its various
> options. Then do an 
> item-by-item comparison.
> 
> Then run DSPDBR against each one, to see what
> logical files exist against 
> each one.
> 
> HTH
> Vern
> 
> At 06:18 AM 5/4/2004, you wrote:
> >They run in different times in the night,PPMAIN
> runs
> >just before FMAIN(Final run).
> >This is consistently happening everyday.
> >"Are the i/o files in the same ASP when the two
> jobs
> >run?" I think it is Yes.How do I check this?
> >
> >
> >
> >
> >--- Jeff Bull <Jeff.Bull@xxxxxxxxxxxxxxx> wrote:
> > > 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
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> > >
> > >
> > > -----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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