That was a great talk, too great for just an upvote. Thanks!
To others considering watching it, the speaker is willing to indulge himself in a bit of self-absorbed wankery, but he gets most of that out of the way in the first 10 minutes, and gets down to the useful business of "here's an example problem, and here's a solution".
If so, then watch this talk: http://www.youtube.com/watch?v=TgmA48fILq8
Now you will prefer Solaris/BSD to Linux :)