46   // instance variables
47   size_t sizes[table_size];
48 
49   // constructor.  "global" indicates that this is the global age table
50   // (as opposed to gc-thread-local)
51   AgeTable(bool global = true);
52 
53   // clear table
54   void clear();
55 
56   // add entry
57   inline void add(oop p, size_t oop_size);
58 
59   void add(uint age, size_t oop_size) {
60     assert(age > 0 && age < table_size, "invalid age of object");
61     sizes[age] += oop_size;
62   }
63 
64   // Merge another age table with the current one.  Used
65   // for parallel young generation gc.
66   void merge(AgeTable* subTable);
67 
68   // Calculate new tenuring threshold based on age information.
69   uint compute_tenuring_threshold(size_t desired_survivor_size);
70   void print_age_table(uint tenuring_threshold);

71 
72  private:
73 
74   PerfVariable* _perf_sizes[table_size];
75 };
76 
77 #endif // SHARE_GC_SHARED_AGETABLE_HPP

46   // instance variables
47   size_t sizes[table_size];
48 
49   // constructor.  "global" indicates that this is the global age table
50   // (as opposed to gc-thread-local)
51   AgeTable(bool global = true);
52 
53   // clear table
54   void clear();
55 
56   // add entry
57   inline void add(oop p, size_t oop_size);
58 
59   void add(uint age, size_t oop_size) {
60     assert(age > 0 && age < table_size, "invalid age of object");
61     sizes[age] += oop_size;
62   }
63 
64   // Merge another age table with the current one.  Used
65   // for parallel young generation gc.
66   void merge(const AgeTable* subTable);
67 
68   // Calculate new tenuring threshold based on age information.
69   uint compute_tenuring_threshold(size_t desired_survivor_size);
70   void print_age_table(uint tenuring_threshold);
71   void print_on(outputStream* st, uint tenuring_threshold);
72 
73  private:
74   bool _use_perf_data;
75   PerfVariable* _perf_sizes[table_size];
76 };
77 
78 #endif // SHARE_GC_SHARED_AGETABLE_HPP