JVM Troubleshooting 学习笔记

Java Platform, Standard Edition Troubleshooting Guide

Command-line options that are prefixed with -XX are specific to Java HotSpot VM. For more information about command-line options used by Java HotSpot VM, see Java HotSpot VM Command-Line Options.
The jcmd is a new JDK profiling utility in JDK 8. It is suggested to use the latest diagnostic utility, jcmd instead of the earlier jstack, jinfo, and jmap utilities.

Java SE Monitoring and Management Guide
Monitoring and Management for the Java Platform