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All your jobs are doing is swapping storage. The only way I knew to get
around this was to have the jobs running at different priorities so that
something could get done otherwise they just sit and swap storage back and
forth and never get anything done.

On Mon, Jun 1, 2009 at 1:59 PM, John Allen <jallen@xxxxxxxxxxx> wrote:

First off I am not even close to a guru on system
performance tuning.

I know just enough to be dangerous



So I am hoping someone here can at least point me in a
direction to get me started on this issue.



I have a JOBQ with Max Active set to 25

Running out of Pool Id 2 (*BASE)

*BASE has 1603MB memory with max active 109

% System ASP used is 79%

I cannot seem to find where the time slice value is set so I
cannot verify the value



There could be up to 25 jobs submitted into the JOBQ to run
at any given time



If there are only 10 jobs running at the same time, they all
run very quickly (less then a minute)

But as I increase the number of jobs running at the same
time, they slow way down (10-20 minutes each)

(And they are not processing anything)

Almost seems like they are all fighting for resources and
none of them complete

When I do wrkactjob the system CPU is 14% and the jobs CPU%
vary from .0 to .2 to .4



I cannot have them run single thread (or whatever 10 thread
is called) I have to allow for up to 25 running at the same
time



These jobs are running at priority 50 (because another
programmer said they were using up the system resources and
"slowing everything down")



I can change the jobq to run 10 at a time and they speed up
to the expected speed based on the little processing they
are doing

so I think it must be some system setting I need to adjust
to improve the jobs performance without affecting the
interactive jobs.



Any pointers?





Thanks in advance



John

















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