undef @confidence_mtx;

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How about @batch_lines? Are you also clearing that one?

The program finished, but then the perl process is killed, the memory is not freed.

That sounds unlikely. After the perl process is finished, all its resources (including memory) should be freed by the OS.

In reply to Re: using a perl LoL and almost running out of memor by Thilosophy
in thread using a perl LoL and almost running out of memor by ai56

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