Improving mod_perl driven site’s performance: Part III

From ApacheToday : “The profiling process helps you to determine which subroutines or just snippets of code take the longest time
to execute and which subroutines are called most often. Probably you will want to optimize those.

When do you need to profile your code? You do that when you suspect that some part of your code is called
very often and may be there is a need to optimize it to significantly improve the overall performance.”