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Oracle SOA Suite Performance Tuning Cookbook by Matt Brasier, Nicholas Wright

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Monitoring garbage collection with jstat

jstat is a JVM command-line tool, which shows you a number of statistics regarding how the JVM is performing. In this recipe, we use jstat to understand the size of the permanent generation.

Getting ready

You will need the SOA Suite installed for this recipe, and will need permission to execute the domain control scripts, as well as the JVM tools. This recipe assumes that your SOA Suite application is running under a normal load.

The tools jps and jstat are included with both the HotSpot and JRockit JVMs. For brevity, this recipe assumes that you have the relevant bin directory on your path. If you do not, simply use the fully qualified paths to the relevant bin directory.

This recipe assumes you are using ...

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