64
65 size_t get_conc_mark_start_threshold() { return (size_t) (_ihop_percent * _target_occupancy / 100.0); }
66
67 virtual void update_allocation_info(double allocation_time_s, size_t allocated_bytes, size_t additional_buffer_size) {
68 assert(allocation_time_s >= 0.0, "Allocation time must be positive but is %.3f", allocation_time_s);
69 _last_allocation_time_s = allocation_time_s;
70 _last_allocated_bytes = allocated_bytes;
71 }
72
73 virtual void update_time_to_mixed(double marking_length_s) {
74 assert(marking_length_s > 0.0, "Marking length must be larger than zero but is %.3f", marking_length_s);
75 _last_marking_length_s = marking_length_s;
76 }
77
78 virtual void print();
79 #ifndef PRODUCT
80 static void test();
81 #endif
82 };
83
84 #endif // SHARE_VM_GC_G1_G1IHOPCONTROL_HPP
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64
65 size_t get_conc_mark_start_threshold() { return (size_t) (_ihop_percent * _target_occupancy / 100.0); }
66
67 virtual void update_allocation_info(double allocation_time_s, size_t allocated_bytes, size_t additional_buffer_size) {
68 assert(allocation_time_s >= 0.0, "Allocation time must be positive but is %.3f", allocation_time_s);
69 _last_allocation_time_s = allocation_time_s;
70 _last_allocated_bytes = allocated_bytes;
71 }
72
73 virtual void update_time_to_mixed(double marking_length_s) {
74 assert(marking_length_s > 0.0, "Marking length must be larger than zero but is %.3f", marking_length_s);
75 _last_marking_length_s = marking_length_s;
76 }
77
78 virtual void print();
79 #ifndef PRODUCT
80 static void test();
81 #endif
82 };
83
84 class G1AdaptiveIHOPControl : public G1IHOPControl {
85 G1Predictions const * _predictor;
86
87 TruncatedSeq _marking_times_s;
88 TruncatedSeq _allocation_rate_s;
89
90 size_t _last_allocation_bytes; // Most recent mutator allocation since last GC.
91 size_t _prev_unrestrained_young_size;
92
93 size_t _current_threshold;
94
95 // Updates _current_threshold according to internal state.
96 void recalculate();
97
98 bool have_enough_data_for_prediction() const;
99 public:
100 G1AdaptiveIHOPControl(double ihop_percent, size_t initial_target_occupancy, G1Predictions const* predictor);
101
102 virtual void set_target_occupancy(size_t target_occupancy);
103
104 virtual size_t get_conc_mark_start_threshold();
105
106 virtual void update_allocation_info(double allocation_time_s, size_t allocated_bytes, size_t additional_buffer_size);
107 virtual void update_time_to_mixed(double marking_length_s);
108
109 virtual void print();
110 #ifndef PRODUCT
111 static void test();
112 #endif
113 };
114
115 #endif // SHARE_VM_GC_G1_G1IHOPCONTROL_HPP
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