Has any body good tutorial or description how to use Time Profile Instrument ? All that I found is http://blancer.com/tutorials/flex/78335/apple-profiling-tools-shark-is-out-instruments-is-in/
and
http://mobile.tutsplus.com/tutorials/iphone/ios-sdk-time-profiling-with-instruments/
I understod that I should use "show obj - C only" option. But what about flags ? How to use them ? How to create them ? thanks..
You create flags by pressing command + down after you have drug the dotted line to the area you want to flag.
来源：https://stackoverflow.com/questions/9263783/iphone-time-profile-instrument