1 /* 2 * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_PARALLEL_PSGCADAPTIVEPOLICYCOUNTERS_HPP 26 #define SHARE_VM_GC_PARALLEL_PSGCADAPTIVEPOLICYCOUNTERS_HPP 27 28 #include "gc/parallel/gcAdaptivePolicyCounters.hpp" 29 #include "gc/parallel/psAdaptiveSizePolicy.hpp" 30 #include "gc/shared/gcPolicyCounters.hpp" 31 32 // PSGCAdaptivePolicyCounters is a holder class for performance counters 33 // that track the data and decisions for the ergonomics policy for the 34 // parallel scavenge collector. 35 36 class PSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters { 37 friend class VMStructs; 38 39 private: 40 // survivor space vs. tenuring threshold 41 PerfVariable* _old_promo_size; 42 PerfVariable* _old_eden_size; 43 PerfVariable* _avg_promoted_avg_counter; 44 PerfVariable* _avg_promoted_dev_counter; 45 PerfVariable* _avg_promoted_padded_avg_counter; 46 PerfVariable* _avg_pretenured_padded_avg; 47 48 // young gen vs. old gen sizing 49 PerfVariable* _avg_major_pause; 50 PerfVariable* _avg_major_interval; 51 PerfVariable* _live_space; 52 PerfVariable* _free_space; 53 PerfVariable* _avg_base_footprint; 54 PerfVariable* _live_at_last_full_gc_counter; 55 PerfVariable* _old_capacity; 56 PerfVariable* _boundary_moved; 57 58 PerfVariable* _change_old_gen_for_min_pauses; 59 PerfVariable* _change_young_gen_for_maj_pauses_counter; 60 61 PerfVariable* _major_pause_old_slope; 62 PerfVariable* _minor_pause_old_slope; 63 PerfVariable* _major_pause_young_slope; 64 65 PerfVariable* _scavenge_skipped; 66 PerfVariable* _full_follows_scavenge; 67 68 // Use this time stamp if the gc time stamp is not available. 69 TimeStamp _counter_time_stamp; 70 71 protected: 72 PSAdaptiveSizePolicy* ps_size_policy() { 73 return (PSAdaptiveSizePolicy*)_size_policy; 74 } 75 76 public: 77 PSGCAdaptivePolicyCounters(const char* name, int collectors, int generations, 78 PSAdaptiveSizePolicy* size_policy); 79 inline void update_old_capacity(size_t size_in_bytes) { 80 _old_capacity->set_value(size_in_bytes); 81 } 82 inline void update_old_eden_size(size_t old_size) { 83 _old_eden_size->set_value(old_size); 84 } 85 inline void update_old_promo_size(size_t old_size) { 86 _old_promo_size->set_value(old_size); 87 } 88 inline void update_boundary_moved(int size_in_bytes) { 89 _boundary_moved->set_value(size_in_bytes); 90 } 91 inline void update_avg_promoted_avg() { 92 _avg_promoted_avg_counter->set_value( 93 (jlong)(ps_size_policy()->avg_promoted()->average()) 94 ); 95 } 96 inline void update_avg_promoted_dev() { 97 _avg_promoted_dev_counter->set_value( 98 (jlong)(ps_size_policy()->avg_promoted()->deviation()) 99 ); 100 } 101 inline void update_avg_promoted_padded_avg() { 102 _avg_promoted_padded_avg_counter->set_value( 103 (jlong)(ps_size_policy()->avg_promoted()->padded_average()) 104 ); 105 } 106 107 inline void update_avg_pretenured_padded_avg() { 108 _avg_pretenured_padded_avg->set_value( 109 (jlong)(ps_size_policy()->_avg_pretenured->padded_average()) 110 ); 111 } 112 inline void update_change_young_gen_for_maj_pauses() { 113 _change_young_gen_for_maj_pauses_counter->set_value( 114 ps_size_policy()->change_young_gen_for_maj_pauses()); 115 } 116 inline void update_change_old_gen_for_min_pauses() { 117 _change_old_gen_for_min_pauses->set_value( 118 ps_size_policy()->change_old_gen_for_min_pauses()); 119 } 120 121 // compute_generations_free_space() statistics 122 123 inline void update_avg_major_pause() { 124 _avg_major_pause->set_value( 125 (jlong)(ps_size_policy()->_avg_major_pause->average() * 1000.0) 126 ); 127 } 128 inline void update_avg_major_interval() { 129 _avg_major_interval->set_value( 130 (jlong)(ps_size_policy()->_avg_major_interval->average() * 1000.0) 131 ); 132 } 133 134 inline void update_major_gc_cost_counter() { 135 _major_gc_cost_counter->set_value( 136 (jlong)(ps_size_policy()->major_gc_cost() * 100.0) 137 ); 138 } 139 inline void update_mutator_cost_counter() { 140 _mutator_cost_counter->set_value( 141 (jlong)(ps_size_policy()->mutator_cost() * 100.0) 142 ); 143 } 144 145 inline void update_live_space() { 146 _live_space->set_value(ps_size_policy()->live_space()); 147 } 148 inline void update_free_space() { 149 _free_space->set_value(ps_size_policy()->free_space()); 150 } 151 152 inline void update_avg_base_footprint() { 153 _avg_base_footprint->set_value( 154 (jlong)(ps_size_policy()->avg_base_footprint()->average()) 155 ); 156 } 157 inline void update_avg_old_live() { 158 _avg_old_live_counter->set_value( 159 (jlong)(ps_size_policy()->avg_old_live()->average()) 160 ); 161 } 162 // Scale up all the slopes 163 inline void update_major_pause_old_slope() { 164 _major_pause_old_slope->set_value( 165 (jlong)(ps_size_policy()->major_pause_old_slope() * 1000) 166 ); 167 } 168 inline void update_minor_pause_old_slope() { 169 _minor_pause_old_slope->set_value( 170 (jlong)(ps_size_policy()->minor_pause_old_slope() * 1000) 171 ); 172 } 173 inline void update_major_pause_young_slope() { 174 _major_pause_young_slope->set_value( 175 (jlong)(ps_size_policy()->major_pause_young_slope() * 1000) 176 ); 177 } 178 inline void update_gc_overhead_limit_exceeded_counter() { 179 gc_overhead_limit_exceeded_counter()->set_value( 180 (jlong) ps_size_policy()->gc_overhead_limit_exceeded()); 181 } 182 inline void update_live_at_last_full_gc_counter() { 183 _live_at_last_full_gc_counter->set_value( 184 (jlong)(ps_size_policy()->live_at_last_full_gc())); 185 } 186 187 inline void update_scavenge_skipped(int cause) { 188 _scavenge_skipped->set_value(cause); 189 } 190 191 inline void update_full_follows_scavenge(int event) { 192 _full_follows_scavenge->set_value(event); 193 } 194 195 // Update all the counters that can be updated from the size policy. 196 // This should be called after all policy changes have been made 197 // and reflected internally in the size policy. 198 void update_counters_from_policy(); 199 200 // Update counters that can be updated from fields internal to the 201 // counter or from globals. This is distinguished from counters 202 // that are updated via input parameters. 203 void update_counters(); 204 205 virtual GCPolicyCounters::Name kind() const { 206 return GCPolicyCounters::PSGCAdaptivePolicyCountersKind; 207 } 208 }; 209 210 #endif // SHARE_VM_GC_PARALLEL_PSGCADAPTIVEPOLICYCOUNTERS_HPP