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:
$ 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