The JRockit Runtime Analyzer (JRA) is the main profiling tool in JRockit R27 and earlier versions. Since R27.3, JRA also contains a powerful latency analyzer. This is useful for understanding why a program is idle at certain points during its runtime. The JRockit Runtime Analyzer was superseded by JRockit Flight Recorder in JRockit R28.
See also JRockit Flight Recorder.