How to collect heap dumps of any java process

Question

I am new to Heaps , can anyone suggest how can i take heap dump of any java process (like Jmeter). I read about jmap command , but i am not getting where and how to execute / write it (in eclipse or cmd). It might be a very basic question but still suggestions are requested.Can i download jmap.exe and jhat.exe from any where? Thank You

Answer 1

Here is the command:

<JDK_HOME>/jmap -F -dump:live,format=b,file=<file_name.hprof> <process_id>

You can mention the file location here in this command.