mpitid / vjstat

Real-time visualisation of JVM heap spaces

vjstat

A simple python script to visualise the JVM heap of a process in real-time from the output of jstat

Input can be from stdin or a 0mq socket. Pyqtgraph is used for visualisation.

Examples

1. Pipe the output of jstat directly to the script:

   jstat -gc $(jps <jvm-process-name>) 100ms | vjstat -i 100 -w 10000

2. Connect to a 0mq socket where the output of jstat is being published:

   jstat -gc $(jps <jvm-process-name) 1s | zmqpp pub 'tcp://*:4242'

   vjstat -i 1000 tcp://<host>:4242

Sample output