Talk comments

Wonderful presentation! and wonderful demo too, Amazed how Dennis can make things looks so easy.

Very nice presentation on an interesting subject! Starting off with some terminology was helpful, and the use of examples throughout the presentation made it very engaging and easy to understand.
The live demo afterwards was the cherry on the cake, very well done!

Some more information about how the passive profilers you mentioned are different from one another would've been a nice addition. Especially the commercial ones. But then again, I can imagine that is worth a separate presentation!

You inspired me for sure!

Great talk about profiling!
Alsof a great demo about using the xhprof profiler!