Memory Usage

Administrators will want to use jmap to create a memory profile for the running application.

jmap is part of the Oracle 1.6 or 1.7 JDK installation. It is a free: http://docs.oracle.com/javase/7/docs/technotes/tools/share/jmap.html

Generating an HPROF file dump with jmap: http://stackoverflow.com/questions/2344417/can-i-generate-an-hprof-file-at-will

$ jmap -dump:file=<file_name> <pid>

Then you will want to import the profile data into a viewer such as:

1.) VisualVM: https://opensource.com/article/19/2/getting-started-vim-visual-mode
2.) YourKit: http://www.yourkit.com
3.) Eclipse: http://wiki.eclipse.org/Install_TPTP_with_Update_Manager
4.) HP JMeter: www.hp.com/go/hpjmeter