Profiling a running Java application in command line

Question

I profile running Java applications often with VisualVM but it needs X to run on the machine.

I know I can connect through management port but that will be an offlin

Answer 1

We have used hprof on our servers and it definitely is better than sysouts in case you can't run a full fledged VisualVM session.

Examples of using hprof are plenty out there:

• http://www.javalobby.org/java/forums/t19612.html
• https://coderwall.com/p/il3h4g/easy-profiling-java-from-command-line
• http://www.brendangregg.com/blog/2014-06-09/java-cpu-sampling-using-hprof.html