AIX 5L Practical Performance Tools and Tuning Guide

3.7. The trace, trcnm, and trcrpt commands

The trace command is a utility that monitors statistics of user and kernel subsystems in detail.

Many of the performance tools listed in this book, such as curt, use trace to obtain their data, then format the data read from the raw trace report and present it to the user. The trcrpt command formats a report from the trace log.

Usually before analyzing the trace file, you would use other performance tools to obtain an overview of the system for potential or real performance problems. This give an indication of what to look for in the trace for resolving any performance bottlenecks. The commonly used methodology is to look at the curt output, then other performance command outputs, then the formatted ...