HP PAK Performance Analysis Tools User's Guide

Chapter 2 17
Puma Concepts
How Puma Gathers Data
Figure 2-2 Active Procedures
Statistical Information
Puma records statistical information concerning the program's resource
use, including:
• time spent in user space ("user cycles")
• time spent in system space ("system cycles")
• major page faults
• minor page faults
• socket messages sent
• socket messages received
• signals received
• files open
• page swaps
• characters (bytes) of I/O
Data Files
Puma stores the samples it collects in a data file. You can have any
number of data files, and any legal UNIX filename is acceptable.
By default, Puma names its data files DataSetnumber.puma and places
them in the directory where Puma is executing. In graphical mode, Puma
increments number each time data collection begins. In shell or