A Dynamic Call Graph window opens and the Window Manager window is updated to show that the Dynamic Call Graph window is open. By default, the nodes and the arcs in the graph are scaled to show the relative time spent in the nodes and the number of calls between nodes.  The largest node represents the main function, so you know that your program spends most of its time in this function. This makes sense, since it is the only function in the oview.cpp source program.

The Dynamic Call Graph is a graphical view of the execution of the target program. It uses nodes and arcs to represent functions and calls.
