If you are using Java 5 or better, some of the most readily
available profiling tools come bundled with your JDK. The Java
Monitoring and Management Console tool, also known as jConsole, can be a
valuable aide in monitoring your applications and identifying performance
issues. The jConsole tool has a lot going for it as a first line performance
profiling tool: it is readily available in any recent JDK distribution, you
don’t need to instrument or modify your code in any way, and you can run it with
a minimum of configuration against local or remote Java applications. Heap
analysis tools such as
jhat help you identify
and track down memory leaks.
Note that the tools we discuss here relate in particular to the Sun JDK. Although they may work with other JVMs, such as BEA’s JRockit and the IBM virtual machines, these JVMs usually have their own more specific profiling tools.
The following articles discuss ways that you can use jConsole to monitor and analyze Java application performance on your own local machine and also on remote servers. When not otherwise stated, the tools used refer to the Java 6 versions.
Arguably one of the most useful of the JDK tools, JConsole is a graphical tool that uses JMX to monitor and report on the activities and resource use of Java applications. This section explains how ...