Tier 2 JVM Heap

Generational Garbage Collection Pipeline

Weak generational hypothesis: Eden allocation, Survivor S0/S1 copying, age promotion & Old Gen compaction
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⚠ Stop-The-World Active (Application Threads Paused)
GC Roots ANCHOR
Stack Frames (Threads)
Static References
Root Scan
Eden Space (Young Gen) TLAB BUMP
Allocation Target
Survivor 0 (S0) Active
Young Gen Aging
Survivor 1 (S1) Inactive
Young Gen Aging
Old Generation (Tenured) AGE ≥ 3
Long-Lived Objects