This chapter overviews the system-wide Linux memory performance tools. This chapter discusses the memory 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 memory usage
Understand which tools can retrieve system-wide memory performance metrics
Each system-wide Linux performance tool provides different ways to extract similar statistics. Although no tool displays all the statistics, some of the tools display the same statistics. The beginning of this chapter reviews the details of these statistics, and those descriptions ...