5 Chapter 5. Measuring performance and application profiling This chapter describes some techniques and issue analysis methods for measuring performance in stand-alone and batch Java applications on z/OS. A large part of this chapter is dedicated to accurate analysis using Test and Performance Tools Platform (TPTP). There are other profiling tools available, but we find TPTP to be one of the most useful ones. The information provided in this chapter is of interest to those who have to deal with Java performance on platforms other than z, and with Java applications of types other than batch or stand-alone. © Copyright IBM Corp. 2006. All rights reserved. 91