Introduction

The "IBM Extensions for Memory Analyzer" are a collection of plug-ins for both the IBM Monitoring and Diagnostic Tools for Java -- Memory Analyzer tool available in the IBM Support Assistant (ISA) and the open source Eclipse Memory Analyzer Tool (MAT).

The base Memory Analyzer tools allows you to:

• Diagnose and resolve memory leaks involving the Java heap.
• Derive architectural understanding of your Java application through footprint analysis.
• Improve application performance by tuning memory footprint and optimizing Java collections and Java cache usage.

The extensions can be used with the following dump types:

• Java heap dumps
  • IBM Portable Heap Dump ( .phd ) binary file
  • Oracle Java Virtual Machine (JVM) hprof binary heap dump
• System dumps generated by an IBM JVM (processed with jextract where required)
• z/OS� SVC dumps generated by an IBM 1.4.2 JVM

However preference is give to the hprof binary dump and system dumps from the IBM JVM as these provide more information.