How does jstat behave in multithreaded code?

jstat is a command-line utility in Java that provides information about the Java Virtual Machine (JVM). When dealing with multithreaded code, jstat can help monitor the performance and resource usage of individual threads, although it does not provide thread-specific stats directly.

In a multithreaded environment, jstat can reveal overall metrics such as heap usage and garbage collection, which can be affected by the interactions of multiple threads. It can be valuable for identifying bottlenecks or inefficient memory usage as a result of concurrent operations.

Example Usage

jstat -gcutil

This command can be used to check the garbage collection statistics of a Java process identified by its process ID (pid).


jstat JVM multithreading performance monitoring garbage collection