The performance tools work by recording data about specific events while a program is running, and converting 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 there is more than one tool that collects performance data, the term Collector is used to refer to any of these tools. Likewise, because there is more than one tool that analyzes performance data, the term analysis tools is used to refer to any of these tools.
This chapter covers the following topics.
See Chapter 3, Collecting Performance Data for information on collecting and storing performance data.