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comparison src/share/vm/utilities/globalDefinitions.hpp @ 263:12eea04c8b06

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6672698: mangle_unused_area() should not remangle the entire heap at each collection. Summary: Maintain a high water mark for the allocations in a space and mangle only up to that high water mark. Reviewed-by: ysr, apetrusenko
author jmasa
date Wed, 09 Jul 2008 15:08:55 -0700
parents f3de1255b035
children 850fdf70db2b
comparison
equal deleted inserted replaced
225:286bee59f34b 263:12eea04c8b06
95 // hw += oop(hw)->foo(); 95 // hw += oop(hw)->foo();
96 // works, where foo is a method (like size or scavenge) that returns the 96 // works, where foo is a method (like size or scavenge) that returns the
97 // object size. 97 // object size.
98 class HeapWord { 98 class HeapWord {
99 friend class VMStructs; 99 friend class VMStructs;
100 private: 100 private:
101 char* i; 101 char* i;
102 #ifdef ASSERT
103 public:
104 char* value() { return i; }
105 #endif
102 }; 106 };
103 107
104 // HeapWordSize must be 2^LogHeapWordSize. 108 // HeapWordSize must be 2^LogHeapWordSize.
105 const int HeapWordSize = sizeof(HeapWord); 109 const int HeapWordSize = sizeof(HeapWord);
106 #ifdef _LP64 110 #ifdef _LP64