src/share/vm/gc_implementation/shenandoah/heuristics/shenandoahAggressiveHeuristics.cpp

rev 10500 : [backport] Rework ClassUnloading* flags handling
rev 10604 : [backport] Comprehensible GC trigger logging
rev 10620 : [backport] Evac reserve: make sure GC has untouchable space to move the objects into

*** 31,40 ****
--- 31,49 ----
    // Do not shortcut evacuation
    SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahImmediateThreshold, 100);
  
    // Aggressive runs with max speed for allocation, to capture races against mutator
    SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahPacing);
+ 
+   // Aggressive evacuates everything, so it needs as much evac space as it can get
+   SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahEvacReserveOverflow);
+ 
+   // If class unloading is globally enabled, aggressive does unloading even with
+   // concurrent cycles.
+   if (ClassUnloading) {
+     SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahUnloadClassesFrequency, 1);
+   }
  }
  
  void ShenandoahAggressiveHeuristics::choose_collection_set_from_regiondata(ShenandoahCollectionSet* cset,
                                                                             RegionData* data, size_t size,
                                                                             size_t free) {
*** 45,54 ****
--- 54,64 ----
      }
    }
  }
  
  bool ShenandoahAggressiveHeuristics::should_start_normal_gc() const {
+   log_info(gc)("Trigger: Start next cycle immediately");
    return true;
  }
  
  bool ShenandoahAggressiveHeuristics::should_process_references() {
    if (ShenandoahRefProcFrequency == 0) return false;