Benchmarking / optimising Perl scripts?

[sugarkane]

Has anyone any advice on how to test the efficiency of a script? The benchmark [perl.com] module is handy for testing execution time, but I'm struggling to think of a good way to test memory usage (which I'd think was very important in a CGI environment where there might be multiple instances of the script running at once).

Any tips?

[Brett_Tabke]

I sure wish there was a way too SugarKane.
When running on Winders, I often run a memory monitor just to see the effect of different perl actions on memory.

For instance; you declare a large hash or array and then use UNDEF on it. On windows, the memory is reclaimed, on most *nix systems it isn't.