Good points but one question. I was under the impression that Perl normally hangs onto the last pad values as an optimization. Is this only in subs or does this happen with all scopes? I think it does hang on to them or I don't think the my $x if 0 behaviour would occur. If this is the case and you have very large lexical data structures I would think you would want to explicitly undef them at the end of the scope.

-Lee

"To be civilized is to deny one's nature."

In reply to Re: Re: Improving memory performance by shotgunefx
in thread Improving memory performance by ezekiel

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