Chapter 1 Announcement

With its application and Java Virtual Machine (JVM) metrics, HPjmeter helps operators and developers work better together to find and solve application performance problems. Using HPjmeter, you can monitor the behavior of running applications and capture profiling data for analyzing the performance of Java™ applications.

HPjmeter helps you diagnose many types of Java application problems that occur only after a product is deployed. The types of problems you can identify include:

These problems may not be apparent or reproducible before you deploy your application when they depend on unique conditions present only in deployment.

With HPjmeter you can also gain a comprehensive overview of certain states of a running JVM and running applications, including details on memory usage, garbage collection, runtime, and class loading, for example. Using HPjmeter's ability to interact with the Java Management Extensions (JMX) component in the JVM, you can also manipulate operations during a monitoring session to control the state of some logging mechanisms, to gather snapshots of stack traces and memory details, and to trigger garbage collection.

Use HPjmeter to: