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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 // CMSGCAdaptivePolicyCounters is a holder class for performance counters
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26 // that track the data and decisions for the ergonomics policy for the
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27 // concurrent mark sweep collector
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28
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29 class CMSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters {
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30 friend class VMStructs;
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31
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32 private:
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33
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34 // Capacity of tenured generation recorded at the end of
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35 // any collection.
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36 PerfVariable* _cms_capacity_counter; // Make this common with PS _old_capacity
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37
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38 // Average stop-the-world pause time for both initial and
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39 // remark pauses sampled at the end of the checkpointRootsFinalWork.
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40 PerfVariable* _avg_cms_STW_time_counter;
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41 // Average stop-the-world (STW) GC cost for the STW pause time
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42 // _avg_cms_STW_time_counter.
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43 PerfVariable* _avg_cms_STW_gc_cost_counter;
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44
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45 #ifdef NOT_PRODUCT
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46 // These are useful to see how the most recent values of these
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47 // counters compare to their respective averages but
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48 // do not control behavior.
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49 PerfVariable* _initial_pause_counter;
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50 PerfVariable* _remark_pause_counter;
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51 #endif
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52
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53 // Average of the initial marking pause for a concurrent collection.
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54 PerfVariable* _avg_initial_pause_counter;
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55 // Average of the remark pause for a concurrent collection.
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56 PerfVariable* _avg_remark_pause_counter;
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57
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58 // Average for the sum of all the concurrent times per collection.
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59 PerfVariable* _avg_concurrent_time_counter;
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60 // Average for the time between the most recent end of a
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61 // concurrent collection and the beginning of the next
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62 // concurrent collection.
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63 PerfVariable* _avg_concurrent_interval_counter;
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64 // Average of the concurrent GC costs based on _avg_concurrent_time_counter
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65 // and _avg_concurrent_interval_counter.
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66 PerfVariable* _avg_concurrent_gc_cost_counter;
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67
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68 // Average of the free space in the tenured generation at the
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69 // end of the sweep of the tenured generation.
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70 PerfVariable* _avg_cms_free_counter;
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71 // Average of the free space in the tenured generation at the
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605
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72 // start of the sweep of the tenured generation.
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0
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73 PerfVariable* _avg_cms_free_at_sweep_counter;
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74 // Average of the free space in the tenured generation at the
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75 // after any resizing of the tenured generation at the end
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76 // of a collection of the tenured generation.
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77 PerfVariable* _avg_cms_promo_counter;
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78
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79 // Average of the mark-sweep-compact (MSC) pause time for a collection
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80 // of the tenured generation.
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81 PerfVariable* _avg_msc_pause_counter;
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82 // Average for the time between the most recent end of a
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83 // MSC collection and the beginning of the next
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84 // MSC collection.
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85 PerfVariable* _avg_msc_interval_counter;
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86 // Average for the GC cost of a MSC collection based on
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87 // _avg_msc_pause_counter and _avg_msc_interval_counter.
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88 PerfVariable* _msc_gc_cost_counter;
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89
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90 // Average of the mark-sweep (MS) pause time for a collection
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91 // of the tenured generation.
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92 PerfVariable* _avg_ms_pause_counter;
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93 // Average for the time between the most recent end of a
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94 // MS collection and the beginning of the next
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95 // MS collection.
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96 PerfVariable* _avg_ms_interval_counter;
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97 // Average for the GC cost of a MS collection based on
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98 // _avg_ms_pause_counter and _avg_ms_interval_counter.
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99 PerfVariable* _ms_gc_cost_counter;
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100
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101 // Average of the bytes promoted per minor collection.
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102 PerfVariable* _promoted_avg_counter;
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103 // Average of the deviation of the promoted average
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104 PerfVariable* _promoted_avg_dev_counter;
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105 // Padded average of the bytes promoted per minor colleciton
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106 PerfVariable* _promoted_padded_avg_counter;
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107
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108 // See description of the _change_young_gen_for_maj_pauses
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109 // variable recently in cmsAdaptiveSizePolicy.hpp.
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110 PerfVariable* _change_young_gen_for_maj_pauses_counter;
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111
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112 // See descriptions of _remark_pause_old_slope, _initial_pause_old_slope,
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113 // etc. variables recently in cmsAdaptiveSizePolicy.hpp.
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114 PerfVariable* _remark_pause_old_slope_counter;
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115 PerfVariable* _initial_pause_old_slope_counter;
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116 PerfVariable* _remark_pause_young_slope_counter;
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117 PerfVariable* _initial_pause_young_slope_counter;
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118
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119 CMSAdaptiveSizePolicy* cms_size_policy() {
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120 assert(_size_policy->kind() ==
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121 AdaptiveSizePolicy::_gc_cms_adaptive_size_policy,
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122 "Wrong size policy");
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123 return (CMSAdaptiveSizePolicy*)_size_policy;
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124 }
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125
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126 inline void update_avg_cms_STW_time_counter() {
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127 _avg_cms_STW_time_counter->set_value(
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128 (jlong) (cms_size_policy()->avg_cms_STW_time()->average() *
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129 (double) MILLIUNITS));
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130 }
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131
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132 inline void update_avg_cms_STW_gc_cost_counter() {
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133 _avg_cms_STW_gc_cost_counter->set_value(
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134 (jlong) (cms_size_policy()->avg_cms_STW_gc_cost()->average() * 100.0));
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135 }
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136
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137 inline void update_avg_initial_pause_counter() {
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138 _avg_initial_pause_counter->set_value(
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139 (jlong) (cms_size_policy()->avg_initial_pause()->average() *
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140 (double) MILLIUNITS));
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141 }
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142 #ifdef NOT_PRODUCT
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143 inline void update_avg_remark_pause_counter() {
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144 _avg_remark_pause_counter->set_value(
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145 (jlong) (cms_size_policy()-> avg_remark_pause()->average() *
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146 (double) MILLIUNITS));
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147 }
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148
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149 inline void update_initial_pause_counter() {
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150 _initial_pause_counter->set_value(
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151 (jlong) (cms_size_policy()->avg_initial_pause()->average() *
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152 (double) MILLIUNITS));
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153 }
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154 #endif
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155 inline void update_remark_pause_counter() {
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156 _remark_pause_counter->set_value(
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157 (jlong) (cms_size_policy()-> avg_remark_pause()->last_sample() *
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158 (double) MILLIUNITS));
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159 }
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160
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161 inline void update_avg_concurrent_time_counter() {
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162 _avg_concurrent_time_counter->set_value(
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163 (jlong) (cms_size_policy()->avg_concurrent_time()->last_sample() *
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164 (double) MILLIUNITS));
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165 }
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166
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167 inline void update_avg_concurrent_interval_counter() {
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168 _avg_concurrent_interval_counter->set_value(
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169 (jlong) (cms_size_policy()->avg_concurrent_interval()->average() *
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170 (double) MILLIUNITS));
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171 }
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172
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173 inline void update_avg_concurrent_gc_cost_counter() {
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174 _avg_concurrent_gc_cost_counter->set_value(
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175 (jlong) (cms_size_policy()->avg_concurrent_gc_cost()->average() * 100.0));
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176 }
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177
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178 inline void update_avg_cms_free_counter() {
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179 _avg_cms_free_counter->set_value(
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180 (jlong) cms_size_policy()->avg_cms_free()->average());
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181 }
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182
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183 inline void update_avg_cms_free_at_sweep_counter() {
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184 _avg_cms_free_at_sweep_counter->set_value(
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185 (jlong) cms_size_policy()->avg_cms_free_at_sweep()->average());
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186 }
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187
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188 inline void update_avg_cms_promo_counter() {
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189 _avg_cms_promo_counter->set_value(
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190 (jlong) cms_size_policy()->avg_cms_promo()->average());
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191 }
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192
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193 inline void update_avg_old_live_counter() {
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194 _avg_old_live_counter->set_value(
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195 (jlong)(cms_size_policy()->avg_old_live()->average())
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196 );
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197 }
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198
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199 inline void update_avg_msc_pause_counter() {
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200 _avg_msc_pause_counter->set_value(
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201 (jlong) (cms_size_policy()->avg_msc_pause()->average() *
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202 (double) MILLIUNITS));
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203 }
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204
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205 inline void update_avg_msc_interval_counter() {
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206 _avg_msc_interval_counter->set_value(
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207 (jlong) (cms_size_policy()->avg_msc_interval()->average() *
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208 (double) MILLIUNITS));
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209 }
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210
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211 inline void update_msc_gc_cost_counter() {
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212 _msc_gc_cost_counter->set_value(
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213 (jlong) (cms_size_policy()->avg_msc_gc_cost()->average() * 100.0));
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214 }
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215
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216 inline void update_avg_ms_pause_counter() {
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217 _avg_ms_pause_counter->set_value(
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218 (jlong) (cms_size_policy()->avg_ms_pause()->average() *
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219 (double) MILLIUNITS));
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220 }
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221
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222 inline void update_avg_ms_interval_counter() {
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223 _avg_ms_interval_counter->set_value(
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224 (jlong) (cms_size_policy()->avg_ms_interval()->average() *
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225 (double) MILLIUNITS));
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226 }
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227
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228 inline void update_ms_gc_cost_counter() {
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229 _ms_gc_cost_counter->set_value(
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230 (jlong) (cms_size_policy()->avg_ms_gc_cost()->average() * 100.0));
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231 }
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232
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233 inline void update_major_gc_cost_counter() {
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234 _major_gc_cost_counter->set_value(
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235 (jlong)(cms_size_policy()->cms_gc_cost() * 100.0)
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236 );
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237 }
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238 inline void update_mutator_cost_counter() {
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239 _mutator_cost_counter->set_value(
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240 (jlong)(cms_size_policy()->mutator_cost() * 100.0)
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241 );
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242 }
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243
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244 inline void update_avg_promoted_avg(CMSGCStats* gc_stats) {
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245 _promoted_avg_counter->set_value(
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246 (jlong)(gc_stats->avg_promoted()->average())
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247 );
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248 }
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249 inline void update_avg_promoted_dev(CMSGCStats* gc_stats) {
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250 _promoted_avg_dev_counter->set_value(
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251 (jlong)(gc_stats->avg_promoted()->deviation())
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252 );
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253 }
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254 inline void update_avg_promoted_padded_avg(CMSGCStats* gc_stats) {
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255 _promoted_padded_avg_counter->set_value(
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256 (jlong)(gc_stats->avg_promoted()->padded_average())
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257 );
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258 }
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259 inline void update_remark_pause_old_slope_counter() {
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260 _remark_pause_old_slope_counter->set_value(
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261 (jlong)(cms_size_policy()->remark_pause_old_slope() * 1000)
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262 );
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263 }
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264 inline void update_initial_pause_old_slope_counter() {
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265 _initial_pause_old_slope_counter->set_value(
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266 (jlong)(cms_size_policy()->initial_pause_old_slope() * 1000)
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267 );
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268 }
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269 inline void update_remark_pause_young_slope_counter() {
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270 _remark_pause_young_slope_counter->set_value(
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271 (jlong)(cms_size_policy()->remark_pause_young_slope() * 1000)
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272 );
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273 }
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274 inline void update_initial_pause_young_slope_counter() {
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275 _initial_pause_young_slope_counter->set_value(
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276 (jlong)(cms_size_policy()->initial_pause_young_slope() * 1000)
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277 );
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278 }
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279 inline void update_change_young_gen_for_maj_pauses() {
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280 _change_young_gen_for_maj_pauses_counter->set_value(
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281 cms_size_policy()->change_young_gen_for_maj_pauses());
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282 }
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283
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284 public:
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285 CMSGCAdaptivePolicyCounters(const char* name, int collectors, int generations,
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286 AdaptiveSizePolicy* size_policy);
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287
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288 // update counters
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289 void update_counters();
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290 void update_counters(CMSGCStats* gc_stats);
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291 void update_counters_from_policy();
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292
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293 inline void update_cms_capacity_counter(size_t size_in_bytes) {
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294 _cms_capacity_counter->set_value(size_in_bytes);
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295 }
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296
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297 virtual GCPolicyCounters::Name kind() const {
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298 return GCPolicyCounters::CMSGCAdaptivePolicyCountersKind;
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299 }
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300 };
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