Data collection
MainView for Java Environments uses JMX and the IBM Health Center to gather internal performance data for the JVMs running on your system.
You can specify JMX ports for any JVM for which you want to collect JMX data. MainView for Java Environments collects the following JMX data:
- Garbage collection
- Heap and nonheap memory usage
- CPU usage by system and application categories in the JVM
- Thread stack trace, locking, contention, and deadlock
- Class loading
- Logging configuration
- MBeans that are currently deployed in the JVM
- Memory usage by memory pool and memory manager
- JVM runtime configuration
- z/OS operating-system information
In addition, if the IBM Health Center is active on a JVM, MainView for Java Environments collects the following data:
- JVM properties information for Health Center ports
- System properties information
- Environmental properties information
- Class loading information for the Health Center ports defined to a target
- Garbage collection
- Class histograms
- Object allocation
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