I'm gave you you a data point. On a different OS. I further addressed the question of how I know that Perl does not run GC periodically, and giving information that you can verify about it. My information varied from incidental discussions that you can Google for to see knowledgeable people talking about it to what to look for in the source code. In the process I hopefully showed that we have a better better way to resolve the question than running an experiment and guessing the meaning. I also provided an alternate explanation for the behaviour that you reported.

Which piece of information is irrelevant to the discussion, and why do you think that it is irrelevant?