Chapters 4 to 12 provide examples using many of these techiques. And these chapters also provide examples of lesser-used performance tuning techniques. Chapters 7 and 11 specifically consider the detailed changes needed for level 4 tuning applied to loops, structures, and algorithms. In addition, Chapter 14 covers tuning the operating system. At level 4, tuning the operating system begins to be more important.
Application currently has adequate performance, and needs to be monitored.
The application currently has adequate performance. If this is a shrink-wrapped application, feedback must be examined to identify any parts of the application that have inadequate performance, and these should be addressed in future versions. In enterprise systems, performance should be continually monitored to ensure that any performance degradation can be promptly identified and addressed. Chapters 13 and 14 of Java Performance Tuning provide details on monitoring and maintaining performance of running systems. Jack Shirazi is an independent consultant.