Thu, 05 Jun 2008 15:57:56 -0700
6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2004-2005 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | # include "incls/_precompiled.incl" |
duke@435 | 26 | # include "incls/_gcAdaptivePolicyCounters.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | // This class keeps statistical information and computes the |
duke@435 | 29 | // size of the heap. |
duke@435 | 30 | |
duke@435 | 31 | GCAdaptivePolicyCounters::GCAdaptivePolicyCounters(const char* name, |
duke@435 | 32 | int collectors, |
duke@435 | 33 | int generations, |
duke@435 | 34 | AdaptiveSizePolicy* size_policy_arg) |
duke@435 | 35 | : GCPolicyCounters(name, collectors, generations), |
duke@435 | 36 | _size_policy(size_policy_arg) { |
duke@435 | 37 | if (UsePerfData) { |
duke@435 | 38 | EXCEPTION_MARK; |
duke@435 | 39 | ResourceMark rm; |
duke@435 | 40 | |
duke@435 | 41 | const char* cname = PerfDataManager::counter_name(name_space(), "edenSize"); |
duke@435 | 42 | _eden_size_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 43 | PerfData::U_Bytes, _size_policy->calculated_eden_size_in_bytes(), CHECK); |
duke@435 | 44 | |
duke@435 | 45 | cname = PerfDataManager::counter_name(name_space(), "promoSize"); |
duke@435 | 46 | _promo_size_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 47 | PerfData::U_Bytes, size_policy()->calculated_promo_size_in_bytes(), |
duke@435 | 48 | CHECK); |
duke@435 | 49 | |
duke@435 | 50 | cname = PerfDataManager::counter_name(name_space(), "youngCapacity"); |
duke@435 | 51 | size_t young_capacity_in_bytes = |
duke@435 | 52 | _size_policy->calculated_eden_size_in_bytes() + |
duke@435 | 53 | _size_policy->calculated_survivor_size_in_bytes(); |
duke@435 | 54 | _young_capacity_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 55 | PerfData::U_Bytes, young_capacity_in_bytes, CHECK); |
duke@435 | 56 | |
duke@435 | 57 | cname = PerfDataManager::counter_name(name_space(), "avgSurvivedAvg"); |
duke@435 | 58 | _avg_survived_avg_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 59 | PerfData::U_Bytes, size_policy()->calculated_survivor_size_in_bytes(), |
duke@435 | 60 | CHECK); |
duke@435 | 61 | |
duke@435 | 62 | cname = PerfDataManager::counter_name(name_space(), "avgSurvivedDev"); |
duke@435 | 63 | _avg_survived_dev_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 64 | PerfData::U_Bytes, (jlong) 0 , CHECK); |
duke@435 | 65 | |
duke@435 | 66 | cname = PerfDataManager::counter_name(name_space(), "avgSurvivedPaddedAvg"); |
duke@435 | 67 | _avg_survived_padded_avg_counter = |
duke@435 | 68 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes, |
duke@435 | 69 | size_policy()->calculated_survivor_size_in_bytes(), CHECK); |
duke@435 | 70 | |
duke@435 | 71 | cname = PerfDataManager::counter_name(name_space(), "avgMinorPauseTime"); |
duke@435 | 72 | _avg_minor_pause_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 73 | PerfData::U_Ticks, (jlong) _size_policy->_avg_minor_pause->average(), |
duke@435 | 74 | CHECK); |
duke@435 | 75 | |
duke@435 | 76 | cname = PerfDataManager::counter_name(name_space(), "avgMinorIntervalTime"); |
duke@435 | 77 | _avg_minor_interval_counter = PerfDataManager::create_variable(SUN_GC, |
duke@435 | 78 | cname, |
duke@435 | 79 | PerfData::U_Ticks, |
duke@435 | 80 | (jlong) _size_policy->_avg_minor_interval->average(), |
duke@435 | 81 | CHECK); |
duke@435 | 82 | |
duke@435 | 83 | #ifdef NOT_PRODUCT |
duke@435 | 84 | // This is a counter for the most recent minor pause time |
duke@435 | 85 | // (the last sample, not the average). It is useful for |
duke@435 | 86 | // verifying the average pause time but not worth putting |
duke@435 | 87 | // into the product. |
duke@435 | 88 | cname = PerfDataManager::counter_name(name_space(), "minorPauseTime"); |
duke@435 | 89 | _minor_pause_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 90 | PerfData::U_Ticks, (jlong) _size_policy->_avg_minor_pause->last_sample(), |
duke@435 | 91 | CHECK); |
duke@435 | 92 | #endif |
duke@435 | 93 | |
duke@435 | 94 | cname = PerfDataManager::counter_name(name_space(), "minorGcCost"); |
duke@435 | 95 | _minor_gc_cost_counter = PerfDataManager::create_variable(SUN_GC, |
duke@435 | 96 | cname, |
duke@435 | 97 | PerfData::U_Ticks, |
duke@435 | 98 | (jlong) _size_policy->minor_gc_cost(), |
duke@435 | 99 | CHECK); |
duke@435 | 100 | |
duke@435 | 101 | cname = PerfDataManager::counter_name(name_space(), "mutatorCost"); |
duke@435 | 102 | _mutator_cost_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 103 | PerfData::U_Ticks, (jlong) _size_policy->mutator_cost(), CHECK); |
duke@435 | 104 | |
duke@435 | 105 | cname = PerfDataManager::counter_name(name_space(), "survived"); |
duke@435 | 106 | _survived_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 107 | PerfData::U_Bytes, (jlong) 0, CHECK); |
duke@435 | 108 | |
duke@435 | 109 | cname = PerfDataManager::counter_name(name_space(), "promoted"); |
duke@435 | 110 | _promoted_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 111 | PerfData::U_Bytes, (jlong) 0, CHECK); |
duke@435 | 112 | |
duke@435 | 113 | cname = PerfDataManager::counter_name(name_space(), "avgYoungLive"); |
duke@435 | 114 | _avg_young_live_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 115 | PerfData::U_Bytes, (jlong) size_policy()->avg_young_live()->average(), |
duke@435 | 116 | CHECK); |
duke@435 | 117 | |
duke@435 | 118 | cname = PerfDataManager::counter_name(name_space(), "avgOldLive"); |
duke@435 | 119 | _avg_old_live_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 120 | PerfData::U_Bytes, (jlong) size_policy()->avg_old_live()->average(), |
duke@435 | 121 | CHECK); |
duke@435 | 122 | |
duke@435 | 123 | cname = PerfDataManager::counter_name(name_space(), "survivorOverflowed"); |
duke@435 | 124 | _survivor_overflowed_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 125 | PerfData::U_Events, (jlong)0, CHECK); |
duke@435 | 126 | |
duke@435 | 127 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 128 | "decrementTenuringThresholdForGcCost"); |
duke@435 | 129 | _decrement_tenuring_threshold_for_gc_cost_counter = |
duke@435 | 130 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events, |
duke@435 | 131 | (jlong)0, CHECK); |
duke@435 | 132 | |
duke@435 | 133 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 134 | "incrementTenuringThresholdForGcCost"); |
duke@435 | 135 | _increment_tenuring_threshold_for_gc_cost_counter = |
duke@435 | 136 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events, |
duke@435 | 137 | (jlong)0, CHECK); |
duke@435 | 138 | |
duke@435 | 139 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 140 | "decrementTenuringThresholdForSurvivorLimit"); |
duke@435 | 141 | _decrement_tenuring_threshold_for_survivor_limit_counter = |
duke@435 | 142 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events, |
duke@435 | 143 | (jlong)0, CHECK); |
duke@435 | 144 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 145 | "changeYoungGenForMinPauses"); |
duke@435 | 146 | _change_young_gen_for_min_pauses_counter = |
duke@435 | 147 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events, |
duke@435 | 148 | (jlong)0, CHECK); |
duke@435 | 149 | |
duke@435 | 150 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 151 | "changeOldGenForMajPauses"); |
duke@435 | 152 | _change_old_gen_for_maj_pauses_counter = |
duke@435 | 153 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events, |
duke@435 | 154 | (jlong)0, CHECK); |
duke@435 | 155 | |
duke@435 | 156 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 157 | "increaseOldGenForThroughput"); |
duke@435 | 158 | _change_old_gen_for_throughput_counter = |
duke@435 | 159 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events, |
duke@435 | 160 | (jlong)0, CHECK); |
duke@435 | 161 | |
duke@435 | 162 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 163 | "increaseYoungGenForThroughput"); |
duke@435 | 164 | _change_young_gen_for_throughput_counter = |
duke@435 | 165 | PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Events, |
duke@435 | 166 | (jlong)0, CHECK); |
duke@435 | 167 | |
duke@435 | 168 | cname = PerfDataManager::counter_name(name_space(), |
duke@435 | 169 | "decreaseForFootprint"); |
duke@435 | 170 | _decrease_for_footprint_counter = |
duke@435 | 171 | PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 172 | PerfData::U_Events, (jlong)0, CHECK); |
duke@435 | 173 | |
duke@435 | 174 | cname = PerfDataManager::counter_name(name_space(), "decideAtFullGc"); |
duke@435 | 175 | _decide_at_full_gc_counter = PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 176 | PerfData::U_None, (jlong)0, CHECK); |
duke@435 | 177 | |
duke@435 | 178 | cname = PerfDataManager::counter_name(name_space(), "minorPauseYoungSlope"); |
duke@435 | 179 | _minor_pause_young_slope_counter = |
duke@435 | 180 | PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 181 | PerfData::U_None, (jlong) 0, CHECK); |
duke@435 | 182 | |
duke@435 | 183 | cname = PerfDataManager::counter_name(name_space(), "majorCollectionSlope"); |
duke@435 | 184 | _major_collection_slope_counter = |
duke@435 | 185 | PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 186 | PerfData::U_None, (jlong) 0, CHECK); |
duke@435 | 187 | |
duke@435 | 188 | cname = PerfDataManager::counter_name(name_space(), "minorCollectionSlope"); |
duke@435 | 189 | _minor_collection_slope_counter = |
duke@435 | 190 | PerfDataManager::create_variable(SUN_GC, cname, |
duke@435 | 191 | PerfData::U_None, (jlong) 0, CHECK); |
duke@435 | 192 | } |
duke@435 | 193 | } |
duke@435 | 194 | |
duke@435 | 195 | void GCAdaptivePolicyCounters::update_counters_from_policy() { |
duke@435 | 196 | if (UsePerfData && (size_policy() != NULL)) { |
duke@435 | 197 | update_avg_minor_pause_counter(); |
duke@435 | 198 | update_avg_minor_interval_counter(); |
duke@435 | 199 | #ifdef NOT_PRODUCT |
duke@435 | 200 | update_minor_pause_counter(); |
duke@435 | 201 | #endif |
duke@435 | 202 | update_minor_gc_cost_counter(); |
duke@435 | 203 | update_avg_young_live_counter(); |
duke@435 | 204 | |
duke@435 | 205 | update_survivor_size_counters(); |
duke@435 | 206 | update_avg_survived_avg_counters(); |
duke@435 | 207 | update_avg_survived_dev_counters(); |
duke@435 | 208 | update_avg_survived_padded_avg_counters(); |
duke@435 | 209 | |
duke@435 | 210 | update_change_old_gen_for_throughput(); |
duke@435 | 211 | update_change_young_gen_for_throughput(); |
duke@435 | 212 | update_decrease_for_footprint(); |
duke@435 | 213 | update_change_young_gen_for_min_pauses(); |
duke@435 | 214 | update_change_old_gen_for_maj_pauses(); |
duke@435 | 215 | |
duke@435 | 216 | update_minor_pause_young_slope_counter(); |
duke@435 | 217 | update_minor_collection_slope_counter(); |
duke@435 | 218 | update_major_collection_slope_counter(); |
duke@435 | 219 | } |
duke@435 | 220 | } |
duke@435 | 221 | |
duke@435 | 222 | void GCAdaptivePolicyCounters::update_counters() { |
duke@435 | 223 | if (UsePerfData) { |
duke@435 | 224 | update_counters_from_policy(); |
duke@435 | 225 | } |
duke@435 | 226 | } |