Viewing Threads Information
This panel displays (Figure 6-8) information on the number of Java threads that existed both before and after the recording.
- The value of Total number of threads before/after recording shows how many threads were active before the recording started and how many were active when the recording ended.
- The value of Number of deamon threads before/after recording is the number of deamon threads. A deamon thread is a thread that runs in the background to support the runtime environment, for example, a garbage collector thread. The JVM exists when all non-daemon threads have completed.
- The value Number of threads started during recording shows how many threads were started.
- The value System total of # (number) context switches per second is fetched from the operating system. An unusually high context switch value compared to other applications may indicate contention in your application.
