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I have 24 GB RAM on my server(RHEL) and have assigned 2 GB Xmx value to a Java process.

I need to check if this 2 GB is being consumed completely. Can I check the top command and see if this Java process is consuming 8.3% memory(ie: 2/24) and make an assumption that its using 2 GB at that point. If its less than 8.3%, then I am assuming that it has not reached 2 GB mark. Let me know if my assumption is wrong.

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Use jvisualvm (Included in JDK) and add a `JMX Connection.

The JMX connection based on the ip of your server and jmx port

In your JVM settingscheck which port is assigned to jmx connection, -Dcom.sun.management.jmxremote.port=xxxx

If not check with netstat -tulpn | grep java

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