As a very green programmer, not just the tooling, but workflow blog posts and presentations like these are a god send!
I wish learn x in my y minutes could pay people, especially those with weight in their respective language communities like Brad Fitz, called Straighten Spaghetti in X by Y Minutes or Less.
I was so disappointed when I realized I couldn't profile on OSX without a kernel patch. I wonder if there is any path towards enabling that in the future.
To be fair, that's not always been the case. Last time I tried the profiler under OS X, it all seemed to work, but the actual figures produced by the profiler were nonsense. Other platforms seemed unaffected. That was quite a while ago. If they've fixed it, then great.