The performance tools record data about specific events while a program is running, and convert the data into measurements of program performance called metrics. Metrics can be shown against functions, source lines, and instructions.
This chapter describes the data collected by the performance tools, how it is processed and displayed, and how it can be used for performance analysis. Because more than one tool collects performance data, the term Collector is used to refer to any of these tools. Likewise, because more than one tool analyzes performance data, the term analysis tools is used to refer to any of these tools.
This chapter covers the following topics.
See Collecting Performance Data for information on collecting and storing performance data.