Varying speed of a program.

[matalog]

I'm not sure if that reply means that it is a known issue.

Can anyone run that program I listed in the second last post a couple of times and see if they also experience the difference in runtimes?

I have not experienced programming languages that have different run-times in the same programs! It may be a useful way to generate random numbers along the way, through sub-programs being run :-).