Using JVMPI facility for PMI statics

The Java Virtual Machine Profiler Interface (JVMPI) is a facility of the JVM used to enable a more comprehensive performance analysis. By enabling the JVMPI interface, the Performance Monitoring Infrastructure can provide more comprehensive performance data such as statistics on garbage collection.

JVMPI is a two-way function call interface between the JVM and an in-process profiler agent. The JVM notifies the profiler agent of various events, such as heap allocations and thread starts. The profiler agent can activate or inactivate specific event notifications, based on the needs of the profiler.

All JVMPI performance data is collected by the JVM module, but JVMPI needs to be enabled for the module to update its counters.

The JVMPI facility is available on the Windows, Unix, and Linux platforms.

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