If you want to improve your code then run Perl::Critic on it - you will get plenty of sugggestions.

If you really want to know the effect of operations on variables then consider using Devel::Peek.

But, as others have said, there are probably better things you should be spending your time on over the Christmas period.
How about improving the testing for your modules? You do using Test::More, don't you?
What about updating all that documentation you never got around to? Did you ever get around to learning POD?

In reply to Re: How does variable definition affect Perl performance ? by cdarke
in thread How does variable definition affect Perl performance ? by EdsterTech

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