Perl has it's own memory manager that runs on top of the operating systems one, and you can not guess when (or even if!) perl will release memory back to the OS. It depends on lots of things like the OS and even the build options selected when perl was compiled. see Mini-Tutorial: Perl's Memory Management for some details.

In reply to Re: Unexplained memory hogging by RichardK
in thread Unexplained memory hogging by richardwfrancis

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