40 const G1Analytics* _analytics;
41
42 const uint _num_prev_pauses_for_heuristics;
43 // Ratio check data for determining if heap growth is necessary.
44 uint _ratio_over_threshold_count;
45 double _ratio_over_threshold_sum;
46 uint _pauses_since_start;
47
48
49 protected:
50 G1HeapSizingPolicy(const G1CollectedHeap* g1h, const G1Analytics* analytics);
51 public:
52
53 // If an expansion would be appropriate, because recent GC overhead had
54 // exceeded the desired limit, return an amount to expand by.
55 virtual size_t expansion_amount();
56
57 // Clear ratio tracking data used by expansion_amount().
58 void clear_ratio_check_data();
59
60 static G1HeapSizingPolicy* create(const G1CollectedHeap* g1h, const G1Analytics* analytics);
61 };
62
63 #endif // SHARE_GC_G1_G1HEAPSIZINGPOLICY_HPP
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40 const G1Analytics* _analytics;
41
42 const uint _num_prev_pauses_for_heuristics;
43 // Ratio check data for determining if heap growth is necessary.
44 uint _ratio_over_threshold_count;
45 double _ratio_over_threshold_sum;
46 uint _pauses_since_start;
47
48
49 protected:
50 G1HeapSizingPolicy(const G1CollectedHeap* g1h, const G1Analytics* analytics);
51 public:
52
53 // If an expansion would be appropriate, because recent GC overhead had
54 // exceeded the desired limit, return an amount to expand by.
55 virtual size_t expansion_amount();
56
57 // Clear ratio tracking data used by expansion_amount().
58 void clear_ratio_check_data();
59
60 // Check if heap size can be shrinked
61 bool can_shrink_heap_size_to(size_t heap_size);
62
63 static G1HeapSizingPolicy* create(const G1CollectedHeap* g1h, const G1Analytics* analytics);
64 };
65
66 #endif // SHARE_GC_G1_G1HEAPSIZINGPOLICY_HPP
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