82.5 The CPU Profiler
When displayed, the CPU Profiler window will appear as shown in Figure 82-8. As with the main window, the data is displayed in realtime including the event time-line (A) and a scrolling graph showing CPU usage (B) in realtime for both the current app and a combined total for all other processes on the device:
Figure 82-8
Located beneath the graph is a list of all of the threads associated with the current app (C). Referred to as the thread activity timeline, this also takes the form of a scrolling time-line displaying the status of each thread as represented by colored blocks (green for active, yellow for active but waiting for a disk or network I/O operation to complete or gray if the thread is currently sleeping).
The CPU Profiler supports two types of method tracing (in other words profiling individual methods within the running app). The current tracing type, either sampled or instrumented, is selected using the menu marked D. The tracing types...
