Re: slow response time for first, and only first time program is run.

The first time, none of the resources needed by the program are in memory. It has to initialize things. This is a common syndrome, sometimes called least-most-recently-used - I think you'd see something similar when the program has not been used for a long time - the system swaps resources out of memory so other jobs can use the space.

Now if you start the process up in one job, does it take the same long time in another job to do the same thing? That'd be a different issue, then.

HTH
Vern

Booth Martin wrote:

This doesn't make sense to me.
Here is what we're doing: We are running a program with this H-spec: H option(*nodebugio) dftactgrp(*no) actgrp(*new)

The first session runs for about 4 minutes before displaying data. Every session after that, whether from the same user or another user, displays the same data in under 6 seconds. Even if all instances of the program are ended, restarting a session is under 6 seconds.

30 to 40 spool files are generated by the process.
What could possibly be different between the first time and the subsequent times?






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