"why is no one using ftrace already?"

autotune · on March 17, 2015

I think you mean sysdig. All glory to the awesomeness and simplicity that is sysdig: http://www.sysdig.org/

brendangregg · on March 17, 2015

sysdig is simple, and has some awesome features, but also lacks many capabilities (eg, kernel dynamic tracing) that we currently need ftrace or perf_events for.

Edit: I should add -- there are three examples in the original post that use ftrace. You can't currently do any of these with sysdig.