Profiling

Owned by M
Last updated: Oct 26, 2010Version comment

JConsole (simple)

Running jmx enabled java process can be debugged with JConsole which is part of the JDK. JConsole provides simple memory and thread profiling.

Connect to a remote JVM with the command

Example connect to the TEST7 HarvestJobManagerApplication on kb-test-adm-001.kb.dk with the following parameters:

Process: service:jmx:rmi:///jndi/rmi://kb-test-adm-001.kb.dk:8144/jmxrmi

Username: monitorRole

Password: test

VisualVM (advanced)

VisualVM is a very powerful and easy to use profiling tool. 

Setup

  • Download the newest Visual from: https://visualvm.dev.java.net/ (VisualVM is actually part of Sun's JDK distribution, but usually in a older version).
  • Start VisualVM as the user running the application to profil.
  • VisualVM displays all the running processes for the current user in the left menu. Open the relevant process and start investigating (smile) .