Fun with tracepoints

Just so there's no misunderstanding, please note that I don't speak on behalf on LTTng in way shape or form; the above opinions are mine and mine alone. LTTng and the now defunct LTT, which I used to maintain, have nothing but part of the name in common. I could have used any other of the tracing projects as an example, it just so happens that this is the one I'm most familiar with :)

Karim