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Optimizing Linux® Performance: A Hands-On Guide to Linux® Performance Tools by Phillip G. Ezolt

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Chapter 2. Performance Tools: System CPU

This chapter overviews the system-wide Linux performance tools. These tools are your first line of defense when tracking a performance problem. They can show you how the overall system is performing and which areas are misbehaving. This chapter discusses the statistics that these tools can measure and how to use the individual tools to gather those statistics. After reading this chapter, you should

  • Understand the basic metrics of system-wide performance, including CPU usage

  • Understand which tools can retrieve these system-wide performance metrics

CPU Performance Statistics

Each system-wide Linux performance tool provides different ways to extract similar statistics. Although no tool displays all the statistics, ...

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