Mat Memory Analyzer

Get an overview of the heap dump.

Mat memory analyzer.

Memory analyzer is provided as an ibm support assistant isa add on. The chart feature requires the birt chart engine version 2 3 0 or greater. The eclipse memory analyzer is a fast and feature rich java heap analyzer that helps you find memory leaks and reduce memory consumption. The memory analyzer chart feature is optional.

Eclipse memory analyzer screenshots. Memory analyzer mat the eclipse memory analyzer is a fast and feature rich java heap analyzer that helps you find memory leaks and reduce memory consumption. This tool is based on the eclipse memory analyzer mat project and uses the ibm diagnostic tool framework for java dtfj feature to enable the processing of dump files from ibm virtual machines. This helps the developer to find memory leaks and high memory consumption issues.

With memory analyzer one can easily find the biggest objects as mat provides reasonable accumulated size retained size explore the object graph both inbound and outbound references. The memory analyzer is a great tool for creating reports about the state of an application s memory. The eclipse memory analyzer tool mat is a fast and feature rich heap dump analyzer that helps you find memory leaks and analyze high memory consumption issues. A heap dump contains valuable information about the state of your system and the mat provides the tools needed to access this data.

The memory analyzer can approximate the retained size. The histogram lists the objects grouped by their class. The eclipse memory analyser tooling mat is a set of plug ins for the eclipse ide which provides tools to analyze heap dumps from java application and to identify memory problems in the application. To install the memory analyzer into an eclipse ide use the update site url provided below.

Ibm monitoring and diagnostic tools for java memory analyzer troubleshooting. It is useful if you do not want to install a full fledged ide on the system you are running the heap analysis. Size and total number of objects at the top then a pie chart with the biggest objects and links to continue the analysis. This help page for memory analyzer from ibm support assistant suggests the following.

Use the memory analyzer to analyze productive heap dumps with hundreds of millions of objects quickly calculate the retained sizes of objects see who is preventing the garbage. It s settings are xmn7m xms48m xmx256m. Memory analyzer 1 2 and earlier has no ui support to decide which heap dump to read. If you want to read an alternative dump one has to start mat with the system property mat hprof dump nr index.

The stand alone memory analyzer is based on eclipse rcp. Use the memory analyzer to analyze productive heap dumps with hundreds of millions of objects quickly calculate the retained sizes of objects see who is preventing the garbage collector from collecting objects run a report to automatically extract leak.