Adam Kaplan has released a cool new profiling tool, Devel::NYTProf. It's apparently taken the formatting beauty of Devel::Cover, the code test coverage tool, and used it to identify hotspots in your code. The results are beautiful: Overview and module-level detail. There's also a report writer that provides CSV output and lets you create your own output in your own format.
I ran into a divide-by-zero error that I patched in my local copy, but other than that the results seem good. I look forward to whatever other improvements come. I'm also glad it's been released with the support of the New York Times.