You might consider using OO techniques to "hide" the global. Make the global into a data member (bless it) and the sub into a method. Of course you then get hit with access costs so you may not end up with a performance win. However OO can help refactor code and that may be a key to unlocking the real problem.

DWIM is Perl's answer to Gödel

In reply to Re^3: Garbage collection at subroutine return by GrandFather
in thread Garbage collection at subroutine return by tcarmeli

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