On 2012-10-03, at 8:15 PM, MichaelQuigley@xxxxxxxxxx wrote:

Jon can answer this better than I can, but here's some additional insight
I got from various COMMON sessions and other research.

Actually he can't add a lot Michael - you've done an excellent job of explaining it all.

One thing I will mention as a lot of people don't think about it. You can use SEP debugging with OPM programs - you just need a skeleton ILE program that doesn't need to do any more than call your regular main program. You set the SEP on that and then step into the OPM code.

I will comment on some things in your other email tomorrow but you did cover all the different options for string handling I was thinking of and I believe that ref mod should be the most efficient many cases. I say "should" because I recently had to dust off my COBOL skills to do some proof-of-concept work for a client. As a result I discovered that certain naughty compiler writers hadn't actually implemented certain things in the way that the original design documents specified. So in terms of efficiency there are things that I'm not as certain of as I was!

You are correct though that the optimization options in ILE could have a major impact on the performance of an app like this and are certainly worth exploring.

Jon Paris


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