How familiar are you with code profiling?

SamplingProfiler was initially released in the Delphi ASM newsgroup, and I’m curious about the audience of this website, so I’ve setup a small poll.

How familiar are you with code profiling and/or Delphi code optimization? Can you tell apart instrumenting and sampling profilers merely by their respective heisenbugs, or is that profiler business sounding like a TV series from the last century?

Poll - Familiarity with Profilers