How to Read Performance Results

Hi, I am just trying to figure out to profile my application with the Performance profiler.  I added all of my relivant libraries to the project and run the profiler.  I am seeing most of my Routines have a 0.00 Time with the Time with Children set at higher numbers.  When I drill down through the call trees I never actually see anything with any time.



Does this just mean that I have not included all the libraries that my code is using?