Zing includes a non-intrusive, production-time application profile and diagnose tool, called Zing Vision (ZVision). In contrast to most other existing external profiling or monitoring tools dedicated to Java applications, ZVision allows a fine-grained insight into the different components of your application without any noticeable overhead. This is possible as ZVision is built into the JVM itself and not just attached as Java Agent.
CPU usage per method, memory usage by objects and by classes is displayed, thread dumps and other internal data that helps to identify bottlenecks or high resource usage in the application.
The method used within ZVision to create thread dumps does not pause your application as externally triggered thread dumps do. For example if you create a thread dump with the jstack tool or kill -3 (SIGQUIT) the application is stopped until all threads reached a safepoint.
For other ways to monitor Zing, see Monitoring Zing.