IBM Power Systems 775 Manual page 153

Figure 2-15 Peekperf data collection window with expanded application structure
The tree in the data collection window panel presents the program structure and is created
based on the type of performance data. For example, the tree in the HPM panel contains two
subtrees: the Func. Entry/Exit subtree shows all the functions in the application, and the
Func. Call Site subtree shows all of the call sites for each function.
Figure 2-16 on page 140 shows Peekperf MPI profiling data collection window. The data
visualization window shows the number of times each function call was executed, the total
time spent executing that function call, and the amount of data that is transferred by that
function call. You see a more detailed view of the data you obtained by right-clicking over a
leaf node in the data visualization window, which opens a metrics browser window, or by
right-clicking in the white space in the data visualization window and selecting Show as Table
from the pop-up menu, which opens a table view of the performance data.
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Chapter 2. Application integration