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On 1/4/2013 4:37 AM, John McKay wrote:
I would also reduce the number of jumps in the program, i.e. reduce the
number of functions / subroutines, put more into one, it's messy, but
should gain some speed. Keep the most frequently used functions /
subroutines closer to the body of the program.
John, I don't think those are really relevant any more. That would be
significantly sacrificing programmer efficiency to gain tiny and
possibly non-existent improvements in run-time efficiency.
The time to make a bound call is extremely small. The Integrated
Language Environment has been optimized to make it possible to write an
application with many calls to little functions rather than having lots
of code in larger functions.
I don't think that putting your functions or subroutines in particular
locations in the source code would affect runtime performance in any
noticeable way, or maybe even at all. I suspect that system might place
the code into the final module in a different order from the way it was
coded in the source file.
Here's my RPG Cafe blog post called "Performance Tip":
https://www.ibm.com/developerworks/mydeveloperworks/blogs/b542d3ac-0785-4b6f-8e53-f72051460822/entry/performance_tip?lang=en
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