If the issue is installation of new/unapproved modules into the system libraries, rather than the use of them in general, you may be able to install them in a personal library or application specific library. All you have to do to use modules from non-standard locations is add the non-standard library directory to @INC.

I have also found Devel::NYTProf a useful profiling module.

In reply to Re^3: Does eval cause that much of a performance hit? by ig
in thread Does eval cause that much of a performance hit? by sherab

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