Viewing Profiler Data

This procedure views data collected with the Profiler. See Saving Profiler Data. The data can be seen immediately after it is collected, as described in Saving Profiler Data, or when it is imported, as described in Loading Profiler Data.

Note - The profiling values obtained from the emulator do not reflect actual values on a real device.

You can change the granularity of the results. In the toolbar at the top of the tab, make a selection from the View menu.

Method Level View (default). Results are displayed according to the fully-qualified method names.

Class Level View. Results for all methods of the same class are aggregated in a single entry.

Package Level View. All methods of classes that belong to the same package are aggregated.

Click any column label to sort based on its values. To remove a column from the display, click the table icon above the scroll bar and uncheck the column name.

The above screenshot shows a view that combines the Call Tree and Hot Spots. Click the tabs along the bottom to see different views:

Call Tree. This tab displays a call tree showing the method call chain and the time/number of invocations for executing threads and methods in each context. (A context is a unique chain of method calls leading to the method’s invocation.)

Hot Spots. This tab shows the total execution time and number of invocations for each method, irrespective of the context. It also includes the Method Name Filter Field, which filters based on the first column. To select the filtering parameters, click the filter icon and choose from the menu.

Enter a search string in the filter field. You can enter multiple values separated by spaces. To apply the filter, click the green check. To restore the unfiltered data, clear the filter field by clicking the red symbol.

Combined.This tab displays the Call Tree information in the upper part of the window and the Hot Spot data in the lower part.

Info. This tab displays the time the snapshot was taken, where it is saved, and the configuration of the profiling session.

You can right-click a profiling result to access additional utilities. The actions you see depend upon the currently selected view.

• Show Subtree. Displays the subtree for the selected method.

• Show Back Traces. Displays the back traces for the selected method.

• Find in Hot Spots. Displays the selected class or method in the Hot Spots tab.

See Saving Profiler Data, Loading Profiler Data and Saving Customized Snapshots and Images.