I just stumbled upon pycallgraph and wow, that's awesome! I don't know if it's really useful :) but it would be tremendously useful at least from a marketing point of view to have such a Perl tool... I imagine the sales people thinking already "Wow, Perl must be great!" and "Perhaps I should switch from PowerPoint to Perl?" next time I'll explain the architecture of our applications ;)
Does anyone know of something similar working with our dear Perl?