Implementing Performance Measurements

Abstract

This chapter presents an overview of the technologies that gather performance measurement metrics. Specifically, it presents code to obtain application server-specific metrics from a JMX registry and a basic implementation of a custom instrumentation engine. Because all of my previous books have been about Java programming, I had to add a “geek”-oriented chapter. If you skip this chapter, it will not hurt your understanding of the material later in the book, but reading this chapter will give you an appreciation for the technologies and a starting point if you do not currently have a commercial product that you can use to start tuning your Java EE environments today.