Summary View
The Summary view displays information about the most performance-expensive functions or objects in a profiling run.
From each data point in the Summary view, you can move to more-detailed views by right-clicking the function, module, or object name.
To modify the number of functions listed in the Summary view, open the Tools menu, point to Options, and then select Performance Tools. Under General settings, modify the Number of functions in Summary view setting.
The displayed data depends on the profiling method that was used (sampling or instrumentation) and whether .NET memory allocation was collected.
See Also
Reference
Summary View - Profiler Sampling Data