47  private:
  48   static PSYoungGen* _young_gen;
  49   static PSOldGen*   _old_gen;
  50 
  51   // Sizing policy for entire heap
  52   static PSAdaptiveSizePolicy*       _size_policy;
  53   static PSGCAdaptivePolicyCounters* _gc_policy_counters;
  54 
  55   static ParallelScavengeHeap* _psh;
  56 
  57   GenerationSizer* _collector_policy;
  58 
  59   // Collection of generations that are adjacent in the
  60   // space reserved for the heap.
  61   AdjoiningGenerations* _gens;
  62   unsigned int _death_march_count;
  63 
  64   // The task manager
  65   static GCTaskManager* _gc_task_manager;
  66 
  67   void trace_heap(GCWhen::Type when, GCTracer* tracer);
  68 
  69  protected:
  70   static inline size_t total_invocations();
  71   HeapWord* allocate_new_tlab(size_t size);
  72 
  73   inline bool should_alloc_in_eden(size_t size) const;
  74   inline void death_march_check(HeapWord* const result, size_t size);
  75   HeapWord* mem_allocate_old_gen(size_t size);
  76 
  77  public:
  78   ParallelScavengeHeap() : CollectedHeap(), _death_march_count(0) { }
  79 
  80   // For use by VM operations
  81   enum CollectionType {
  82     Scavenge,
  83     MarkSweep
  84   };
  85 
  86   ParallelScavengeHeap::Name kind() const {
  87     return CollectedHeap::ParallelScavengeHeap;

  47  private:
  48   static PSYoungGen* _young_gen;
  49   static PSOldGen*   _old_gen;
  50 
  51   // Sizing policy for entire heap
  52   static PSAdaptiveSizePolicy*       _size_policy;
  53   static PSGCAdaptivePolicyCounters* _gc_policy_counters;
  54 
  55   static ParallelScavengeHeap* _psh;
  56 
  57   GenerationSizer* _collector_policy;
  58 
  59   // Collection of generations that are adjacent in the
  60   // space reserved for the heap.
  61   AdjoiningGenerations* _gens;
  62   unsigned int _death_march_count;
  63 
  64   // The task manager
  65   static GCTaskManager* _gc_task_manager;
  66 
  67   void trace_heap(GCWhen::Type when, const GCTracer* tracer);
  68 
  69  protected:
  70   static inline size_t total_invocations();
  71   HeapWord* allocate_new_tlab(size_t size);
  72 
  73   inline bool should_alloc_in_eden(size_t size) const;
  74   inline void death_march_check(HeapWord* const result, size_t size);
  75   HeapWord* mem_allocate_old_gen(size_t size);
  76 
  77  public:
  78   ParallelScavengeHeap() : CollectedHeap(), _death_march_count(0) { }
  79 
  80   // For use by VM operations
  81   enum CollectionType {
  82     Scavenge,
  83     MarkSweep
  84   };
  85 
  86   ParallelScavengeHeap::Name kind() const {
  87     return CollectedHeap::ParallelScavengeHeap;