The JConsole tool is in the JDK/bin directory. After starting JConsole, it will automatically search for the jvm process running on the local machine. No jps command is needed to query and specify. Double-click one of the jvm processes to start monitoring, or use "remote process" to connect to the remote server.
#Enter the JConsole main interface, There are six tabs: "Overview", "Memory", "Threads", "Classes", "VM Summary" and "Mbean":
# #The last commonly used tab, the VM tab, can clearly understand and display the specified JVM parameters and heap information.
2.VisualVM
Install the plug-in: Tools - Plug-in
VisualVM main interface
Generate dump file in VisualVM:
3.
jprofiler
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