Folding Calls with a Small Impact
Execution time of some functions does really matter meanwhile execution time of other functions has a very small impact on the application performance. You can hide those functions, so that they do not hinder you in your efforts to analyze the performance.
To fold calls with a small impact by default
Regardless of the default setting, you can collapse or expand a list of functions
that do not influence execution time right in views.
To collapse a list of functions, click the icon.
To expand the list of functions, click the icon one more time.
As you can see, dotTrace informs you how many functions are hidden and displays total time that is the sum of time spent in each call stack.