The Call Tree or Call Graph, accessible from the Process Window using the command Tools > Call Graph, provides a quick view of application state and is especially helpful for locating outliers and bottlenecks.
Figure 9 – Tools > Call Graph Dialog Box
By default, the Call Tree or Call Graph displays the Call Tree representing the backtrace of all the selected processes and threads.
For multi-process or multi-threaded programs, a compressed process/thread list (ptlist) next to the arrows indicates which threads have a routine on their call stack. You can dive on a routine in the call tree/graph to create a group called call_graph that contains all the threads that have the routine you dived on in their call stack.
