This post is from one of several previous incarnations of this site and probably doesn’t quite fit the current format. In a former life this was a group blog and a tumblelog before it became a static jekyll site. If anything looks broken or is worded oddly that could be why. Pardon the dust.
Bryan Cantrill giving a Google Tech Talk on Sun’s (and his) Dtrace debugging tool. Gets way too gnarly and kernelicious for me in the middle, but still very entertaining and informative.