Controlling Data Collection and Display

HPjmeter provides two methods to control how information is collected and displayed.

JVM agent filters. The include and exclude options to the JVM agent allow you to filter metrics by class name.

JVM agent filters are configured when you start the JVM, and cannot be dynamically changed.

Console filters. Session preferences allow you to specify classes to measure when you open a session with that JVM's agent, and can be changed from session to session, but not during a session.

	NOTE: If the JVM agent has filtered out a class, the console will be unable to see metrics from that class even if you try to turn off the console filter for the class. In metrics displays, you can see the list of filters in effect while the data was collected, including default agent filters, by clicking the icon.