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7: Old generation expanded on last scavenge
8: Old generation too full to scavenge
9: FullGCAlot
10: Allocation profiler triggered
11: JVMTI force GC
12: Adaptive Size Policy
13: Last ditch collection
3: represents a complete background CMS GC
• %2: indicates the GC reason:
1: Occupancy > initiatingOccupancy◦
◦ 2: Expanded recently
◦ 3: Incremental collection will fail
◦ 4: Linear allocation will fail
◦ 5: Anticipated promotion
◦ 6: Incremental CMS
• m indicates the background CMS state when yielding:
0: Resetting◦
◦ 1: Idling
◦ 2: InitialMarking
◦ 3: Marking
◦ 4: FinalMarking
◦ 5: Precleaning
◦ 6: Sweeping
◦ 7: AbortablePreclean
(exited after yielding to foreground GC)
%3: Program time at the beginning of the collection, in seconds
%4: Garbage collection invocation. Counts of background CMS GCs and
other GCs are maintained separately
%5: Size of the object allocation request that forced the GC, in bytes
%6: Tenuring threshold - determines how long the new born object remains
in the New Generation
The report includes the size of each space:
• Occupied before garbage collection (Before)
• Occupied after garbage collection (After)
• Current capacity (Capacity)
All values are in bytes
22 java: Java Application Launcher