Well, if you are running on a Windoze box, you could be slamming the memory ... we'd have to see the code to say for sure, though. If that is the case, you may be forcing 'doze to use virtual memory (you know, hard disk) for data structure storage. On a fragmented drive, that incurs an even greater performance penalty of course.

Can you update us with details about the platform, data structures, etc.?

Update from HZ: It has been noted to me (thank you tye) that other systems can also penalize you for slamming memory. In any case, we need more details to help you. Please, sir, can we see your code?

In reply to Re: Perl scripts slowing down towards end of file processing by HyperZonk
in thread Perl scripts slowing down towards end of file processing by JPaul

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