Java Memory Management Performance Analysis
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Internal
Old Generation Analysis
Old generation occupancy after full collections. This is the primary indicator of memory leaks.
gc event-type:FULL_COLLECTION -o old-after, old-capacity, heap-capacity ./gc.log > gc.csv
Garbage Collection Time Analysis
Full collection frequency, time and CPU usage:
gc event-type:FULL_COLLECTION -o collection-time ./gc.log > full-collection-time.csv
New generation collection frequency, time, and CPU usage:
gc event-type:YOUNG_GENERATION_COLLECTION -o collection-time ./gc.log > new-generation-collection-time.csv