[JAVA] How to monitor application information in real time using JConsole
Overview
A tool called JConsole is provided for real-time monitoring of application information. I will leave a memorandum about how to use this JConsole.
Verification environment
- Eclipse Oxygen.3a Release (4.7.3a)
- Java8
- JConsole 1.8.0_162-b12
Location of JConsole
JConsole is stored as an exe in the bin folder of the JDK, and you can start it by directly clicking "jconsole.exe".
How to use JConsole
When you start JConsole, the above screen will be displayed. For example, select the process you want to monitor in "Local Process" and press the "Connect" button.
If the above screen appears, click the "Unprotected Connection" button if there is no problem. (This time it is a local connection, so there is no problem)
As shown in the above screen
-
- Heap memory usage
- thread
-
- class
- CPU usage You can check.
If you want to see more detailed information, open each tab and check.
Memory tab
Thread tab
Cluster tab
VM summary
MBeans
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