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Joe D wrote:

I had a user who was sitting on the main menu screen (no app other than menu running) but had over 500 open files. Most of the files listed actually had multiple instances listed - one logical file I counted was listed 21 times. I am assuming he built up to this number of open files through the course of the day and a dozen or more application calls, but the number seems extreme no matter how long it took him to reach it.

These open files may make it quicker for him to go back into Order Inquiry, for example, but at what point do all the open files start affecting system performance for the user or all users? Or do these open files NOT really affect system performance that much?

The only way to know is to measure. I'm not being sarcastic in the least. 500 open files per user might be a light load for your particular configuration, and a crushing load on another. In general, i5/OS has an extremely good virtual memory paging heuristic. I personally would not worry about performance until I measured it.

More to the point, activation group strategy is not a construction decision, it is a design decision. Changing that strategy in the middle of construction might generate a fair amount of rework. The point of multiple activation groups is to allow for multiple applications to co-exist; to let the A/R point to customer 100 and let order entry point to customer 50 at the same time.
--buck

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