Check out Devel::NYTProf 4.00
Tim Bunce's Devel::NYTProf has a bunch of improvements in version 4.00, which was released yesterday.
The compatibility problem with Devel::Declare code like Module::Signatures::Simple that I previously blogged about has been fixed. It can now profile inside string evals, and more.
Update: Tim Bunce now has a posting about NYTProf 4.00 on his blog.