I am testing a website through Jmeter, but all its components say LMS CMS Mongodb and Mysql are all in the same single VM
How to view its individual usage stats? preferably in graph
You can nmon to capture resource utilization of each process. For details you can refer to : http://www.ibm.com/developerworks/aix/library/au-analyze_aix/
First save the nmon logs and then use nmon analyzer to plot the graphs.