1.1 --- a/src/share/vm/memory/generation.hpp Fri Apr 05 10:20:04 2013 -0700
1.2 +++ b/src/share/vm/memory/generation.hpp Mon Feb 11 10:31:56 2013 -0800
1.3 @@ -634,6 +634,17 @@
1.4 // This is local to this generation.
1.5 BlockOffsetSharedArray* _bts;
1.6
1.7 + // current shrinking effect: this damps shrinking when the heap gets empty.
1.8 + size_t _shrink_factor;
1.9 +
1.10 + size_t _min_heap_delta_bytes; // Minimum amount to expand.
1.11 +
1.12 + // Some statistics from before gc started.
1.13 + // These are gathered in the gc_prologue (and should_collect)
1.14 + // to control growing/shrinking policy in spite of promotions.
1.15 + size_t _capacity_at_prologue;
1.16 + size_t _used_at_prologue;
1.17 +
1.18 CardGeneration(ReservedSpace rs, size_t initial_byte_size, int level,
1.19 GenRemSet* remset);
1.20
1.21 @@ -644,6 +655,11 @@
1.22 // necessarily the full "bytes") was done.
1.23 virtual bool expand(size_t bytes, size_t expand_bytes);
1.24
1.25 + // Shrink generation with specified size (returns false if unable to shrink)
1.26 + virtual void shrink(size_t bytes) = 0;
1.27 +
1.28 + virtual void compute_new_size();
1.29 +
1.30 virtual void clear_remembered_set();
1.31
1.32 virtual void invalidate_remembered_set();
1.33 @@ -667,7 +683,6 @@
1.34 friend class VM_PopulateDumpSharedSpace;
1.35
1.36 protected:
1.37 - size_t _min_heap_delta_bytes; // Minimum amount to expand.
1.38 ContiguousSpace* _the_space; // actual space holding objects
1.39 WaterMark _last_gc; // watermark between objects allocated before
1.40 // and after last GC.
1.41 @@ -688,11 +703,10 @@
1.42
1.43 public:
1.44 OneContigSpaceCardGeneration(ReservedSpace rs, size_t initial_byte_size,
1.45 - size_t min_heap_delta_bytes,
1.46 int level, GenRemSet* remset,
1.47 ContiguousSpace* space) :
1.48 CardGeneration(rs, initial_byte_size, level, remset),
1.49 - _the_space(space), _min_heap_delta_bytes(min_heap_delta_bytes)
1.50 + _the_space(space)
1.51 {}
1.52
1.53 inline bool is_in(const void* p) const;
