103 "Conservation Principle");
104 if (inter_sweep_current > _threshold) {
105 ssize_t demand = prev_sweep() - (ssize_t)count + split_births() + coal_births()
106 - split_deaths() - coal_deaths();
107 assert(demand >= 0,
108 err_msg("Demand (" SSIZE_FORMAT ") should be non-negative for "
109 PTR_FORMAT " (size=" SIZE_FORMAT ")",
110 demand, this, count));
111 // Defensive: adjust for imprecision in event counting
112 if (demand < 0) {
113 demand = 0;
114 }
115 float old_rate = _demand_rate_estimate.padded_average();
116 float rate = ((float)demand)/inter_sweep_current;
117 _demand_rate_estimate.sample(rate);
118 float new_rate = _demand_rate_estimate.padded_average();
119 ssize_t old_desired = _desired;
120 float delta_ise = (CMSExtrapolateSweep ? intra_sweep_estimate : 0.0);
121 _desired = (ssize_t)(new_rate * (inter_sweep_estimate + delta_ise));
122 if (PrintFLSStatistics > 1) {
123 gclog_or_tty->print_cr("demand: %d, old_rate: %f, current_rate: %f, new_rate: %f, old_desired: %d, new_desired: %d",
124 demand, old_rate, rate, new_rate, old_desired, _desired);
125 }
126 }
127 }
128
129 ssize_t desired() const { return _desired; }
130 void set_desired(ssize_t v) { _desired = v; }
131
132 ssize_t coal_desired() const { return _coal_desired; }
133 void set_coal_desired(ssize_t v) { _coal_desired = v; }
134
135 ssize_t surplus() const { return _surplus; }
136 void set_surplus(ssize_t v) { _surplus = v; }
137 void increment_surplus() { _surplus++; }
138 void decrement_surplus() { _surplus--; }
139
140 ssize_t bfr_surp() const { return _bfr_surp; }
141 void set_bfr_surp(ssize_t v) { _bfr_surp = v; }
142 ssize_t prev_sweep() const { return _prev_sweep; }
143 void set_prev_sweep(ssize_t v) { _prev_sweep = v; }
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103 "Conservation Principle");
104 if (inter_sweep_current > _threshold) {
105 ssize_t demand = prev_sweep() - (ssize_t)count + split_births() + coal_births()
106 - split_deaths() - coal_deaths();
107 assert(demand >= 0,
108 err_msg("Demand (" SSIZE_FORMAT ") should be non-negative for "
109 PTR_FORMAT " (size=" SIZE_FORMAT ")",
110 demand, this, count));
111 // Defensive: adjust for imprecision in event counting
112 if (demand < 0) {
113 demand = 0;
114 }
115 float old_rate = _demand_rate_estimate.padded_average();
116 float rate = ((float)demand)/inter_sweep_current;
117 _demand_rate_estimate.sample(rate);
118 float new_rate = _demand_rate_estimate.padded_average();
119 ssize_t old_desired = _desired;
120 float delta_ise = (CMSExtrapolateSweep ? intra_sweep_estimate : 0.0);
121 _desired = (ssize_t)(new_rate * (inter_sweep_estimate + delta_ise));
122 if (PrintFLSStatistics > 1) {
123 gclog_or_tty->print_cr("demand: " SSIZE_FORMAT ", old_rate: %f, current_rate: %f, "
124 "new_rate: %f, old_desired: " SSIZE_FORMAT ", new_desired: " SSIZE_FORMAT,
125 demand, old_rate, rate, new_rate, old_desired, _desired);
126 }
127 }
128 }
129
130 ssize_t desired() const { return _desired; }
131 void set_desired(ssize_t v) { _desired = v; }
132
133 ssize_t coal_desired() const { return _coal_desired; }
134 void set_coal_desired(ssize_t v) { _coal_desired = v; }
135
136 ssize_t surplus() const { return _surplus; }
137 void set_surplus(ssize_t v) { _surplus = v; }
138 void increment_surplus() { _surplus++; }
139 void decrement_surplus() { _surplus--; }
140
141 ssize_t bfr_surp() const { return _bfr_surp; }
142 void set_bfr_surp(ssize_t v) { _bfr_surp = v; }
143 ssize_t prev_sweep() const { return _prev_sweep; }
144 void set_prev_sweep(ssize_t v) { _prev_sweep = v; }
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