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1 /*
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2 * Copyright 2004-2005 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // This class keeps statistical information and computes the
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26 // size of the heap.
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27
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28 class GCAdaptivePolicyCounters : public GCPolicyCounters {
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29 protected:
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30 PerfVariable* _eden_size_counter;
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31 PerfVariable* _promo_size_counter;
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32
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33 PerfVariable* _young_capacity_counter;
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34
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35 PerfVariable* _minor_gc_cost_counter;
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36 PerfVariable* _major_gc_cost_counter;
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37 PerfVariable* _mutator_cost_counter;
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38
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39 PerfVariable* _avg_young_live_counter;
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40 PerfVariable* _avg_old_live_counter;
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41
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42 PerfVariable* _avg_minor_pause_counter;
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43 PerfVariable* _avg_minor_interval_counter;
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44
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45 #ifdef NOT_PRODUCT
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46 PerfVariable* _minor_pause_counter;
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47 #endif
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48
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49 PerfVariable* _change_young_gen_for_min_pauses_counter;
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50 PerfVariable* _change_young_gen_for_throughput_counter;
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51 PerfVariable* _change_old_gen_for_maj_pauses_counter;
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52 PerfVariable* _change_old_gen_for_throughput_counter;
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53 PerfVariable* _decrease_for_footprint_counter;
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54
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55 PerfVariable* _minor_pause_young_slope_counter;
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56 PerfVariable* _major_pause_old_slope_counter;
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57
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58 PerfVariable* _decide_at_full_gc_counter;
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59
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60 PerfVariable* _survived_counter;
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61 PerfVariable* _promoted_counter;
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62
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63 PerfVariable* _avg_survived_avg_counter;
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64 PerfVariable* _avg_survived_dev_counter;
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65 PerfVariable* _avg_survived_padded_avg_counter;
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66
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67 PerfVariable* _survivor_overflowed_counter;
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68 PerfVariable* _increment_tenuring_threshold_for_gc_cost_counter;
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69 PerfVariable* _decrement_tenuring_threshold_for_gc_cost_counter;
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70 PerfVariable* _decrement_tenuring_threshold_for_survivor_limit_counter;
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71
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72 PerfVariable* _minor_collection_slope_counter;
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73 PerfVariable* _major_collection_slope_counter;
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74
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75 AdaptiveSizePolicy* _size_policy;
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76
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77 inline void update_eden_size() {
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78 size_t eden_size_in_bytes = size_policy()->calculated_eden_size_in_bytes();
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79 _eden_size_counter->set_value(eden_size_in_bytes);
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80 }
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81
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82 inline void update_promo_size() {
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83 _promo_size_counter->set_value(
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84 size_policy()->calculated_promo_size_in_bytes());
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85 }
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86
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87 inline void update_avg_minor_pause_counter() {
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88 _avg_minor_pause_counter->set_value((jlong)
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89 (size_policy()->avg_minor_pause()->average() * 1000.0));
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90 }
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91 inline void update_avg_minor_interval_counter() {
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92 _avg_minor_interval_counter->set_value((jlong)
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93 (size_policy()->avg_minor_interval()->average() * 1000.0));
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94 }
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95
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96 #ifdef NOT_PRODUCT
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97 inline void update_minor_pause_counter() {
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98 _minor_pause_counter->set_value((jlong)
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99 (size_policy()->avg_minor_pause()->last_sample() * 1000.0));
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100 }
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101 #endif
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102 inline void update_minor_gc_cost_counter() {
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103 _minor_gc_cost_counter->set_value((jlong)
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104 (size_policy()->minor_gc_cost() * 100.0));
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105 }
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106
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107 inline void update_avg_young_live_counter() {
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108 _avg_young_live_counter->set_value(
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109 (jlong)(size_policy()->avg_young_live()->average())
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110 );
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111 }
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112
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113 inline void update_avg_survived_avg_counters() {
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114 _avg_survived_avg_counter->set_value(
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115 (jlong)(size_policy()->_avg_survived->average())
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116 );
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117 }
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118 inline void update_avg_survived_dev_counters() {
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119 _avg_survived_dev_counter->set_value(
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120 (jlong)(size_policy()->_avg_survived->deviation())
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121 );
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122 }
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123 inline void update_avg_survived_padded_avg_counters() {
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124 _avg_survived_padded_avg_counter->set_value(
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125 (jlong)(size_policy()->_avg_survived->padded_average())
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126 );
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127 }
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128
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129 inline void update_change_old_gen_for_throughput() {
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130 _change_old_gen_for_throughput_counter->set_value(
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131 size_policy()->change_old_gen_for_throughput());
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132 }
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133 inline void update_change_young_gen_for_throughput() {
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134 _change_young_gen_for_throughput_counter->set_value(
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135 size_policy()->change_young_gen_for_throughput());
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136 }
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137 inline void update_decrease_for_footprint() {
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138 _decrease_for_footprint_counter->set_value(
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139 size_policy()->decrease_for_footprint());
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140 }
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141
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142 inline void update_decide_at_full_gc_counter() {
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143 _decide_at_full_gc_counter->set_value(
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144 size_policy()->decide_at_full_gc());
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145 }
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146
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147 inline void update_minor_pause_young_slope_counter() {
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148 _minor_pause_young_slope_counter->set_value(
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149 (jlong)(size_policy()->minor_pause_young_slope() * 1000)
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150 );
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151 }
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152
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153 virtual void update_counters_from_policy();
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154
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155 protected:
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156 virtual AdaptiveSizePolicy* size_policy() { return _size_policy; }
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157
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158 public:
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159 GCAdaptivePolicyCounters(const char* name,
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160 int collectors,
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161 int generations,
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162 AdaptiveSizePolicy* size_policy);
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163
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164 inline void update_survived(size_t survived) {
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165 _survived_counter->set_value(survived);
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166 }
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167 inline void update_promoted(size_t promoted) {
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168 _promoted_counter->set_value(promoted);
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169 }
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170 inline void update_young_capacity(size_t size_in_bytes) {
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171 _young_capacity_counter->set_value(size_in_bytes);
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172 }
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173
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174 virtual void update_counters();
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175
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176 inline void update_survivor_size_counters() {
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177 desired_survivor_size()->set_value(
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178 size_policy()->calculated_survivor_size_in_bytes());
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179 }
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180 inline void update_survivor_overflowed(bool survivor_overflowed) {
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181 _survivor_overflowed_counter->set_value(survivor_overflowed);
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182 }
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183 inline void update_tenuring_threshold(int threshold) {
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184 tenuring_threshold()->set_value(threshold);
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185 }
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186 inline void update_increment_tenuring_threshold_for_gc_cost() {
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187 _increment_tenuring_threshold_for_gc_cost_counter->set_value(
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188 size_policy()->increment_tenuring_threshold_for_gc_cost());
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189 }
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190 inline void update_decrement_tenuring_threshold_for_gc_cost() {
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191 _decrement_tenuring_threshold_for_gc_cost_counter->set_value(
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192 size_policy()->decrement_tenuring_threshold_for_gc_cost());
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193 }
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194 inline void update_decrement_tenuring_threshold_for_survivor_limit() {
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195 _decrement_tenuring_threshold_for_survivor_limit_counter->set_value(
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196 size_policy()->decrement_tenuring_threshold_for_survivor_limit());
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197 }
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198 inline void update_change_young_gen_for_min_pauses() {
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199 _change_young_gen_for_min_pauses_counter->set_value(
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200 size_policy()->change_young_gen_for_min_pauses());
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201 }
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202 inline void update_change_old_gen_for_maj_pauses() {
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203 _change_old_gen_for_maj_pauses_counter->set_value(
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204 size_policy()->change_old_gen_for_maj_pauses());
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205 }
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206
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207 inline void update_minor_collection_slope_counter() {
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208 _minor_collection_slope_counter->set_value(
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209 (jlong)(size_policy()->minor_collection_slope() * 1000)
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210 );
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211 }
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212
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213 inline void update_major_collection_slope_counter() {
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214 _major_collection_slope_counter->set_value(
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215 (jlong)(size_policy()->major_collection_slope() * 1000)
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216 );
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217 }
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218
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219 void set_size_policy(AdaptiveSizePolicy* v) { _size_policy = v; }
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220
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221 virtual GCPolicyCounters::Name kind() const {
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222 return GCPolicyCounters::GCAdaptivePolicyCountersKind;
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223 }
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224 };
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