Profile C++ programm based on wall clock time with intel Vtune amplifier

Question

I've just started using intel VTune Amplifier XE and looks like by default only cpu-time measures. Is it possible to setup VTune to get results based on wall clock time (real time)? Actually my goal is to get hotspots from disk I/O operations.

Answer 1

To measure I/O of the app in VTune you can use two features. Locks and Waits Analysis to trace APIs which are blocking you app execution (including I/O API) or dedicated Disk Input and Output Analysis to see if you are blocked on the disk and what APIs in the app are causing that.