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  3. September 2003

Re: Files open from Service Programs

> Is there a significant performance hit from
> leaving files open that were opened by activated
> service programs in a job stream?

There's probably no performance hit in most cases, unless allocated memory
from all jobs exceeds the box's capacity.  Explicitly deallocating unused
resources is more a matter of good programming style.  Your service program
could provide init() and cleanup() procedures to open and close files
explicitly.

>From a performance point of view, it makes sense to leave the files open as
long as they are being read or updated using other procedures in the service
program.

Nathan M. Andelin
www.relational-data.com

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