Java Memory Management Performance Analysis

Internal

• Java Memory

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 > gc.csv

New generation collection frequency, time, and CPU usage:

Leak Analysis

YourKit Memory Snapshot Comparison