1 /* |
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2 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSGCADAPTIVEPOLICYCOUNTERS_HPP |
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26 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSGCADAPTIVEPOLICYCOUNTERS_HPP |
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27 |
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28 #include "gc_implementation/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp" |
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29 #include "gc_implementation/shared/gcAdaptivePolicyCounters.hpp" |
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30 #include "gc_implementation/shared/gcStats.hpp" |
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31 #include "runtime/perfData.hpp" |
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32 |
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33 // CMSGCAdaptivePolicyCounters is a holder class for performance counters |
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34 // that track the data and decisions for the ergonomics policy for the |
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35 // concurrent mark sweep collector |
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36 |
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37 class CMSGCAdaptivePolicyCounters : public GCAdaptivePolicyCounters { |
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38 friend class VMStructs; |
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39 |
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40 private: |
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41 |
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42 // Capacity of tenured generation recorded at the end of |
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43 // any collection. |
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44 PerfVariable* _cms_capacity_counter; // Make this common with PS _old_capacity |
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45 |
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46 // Average stop-the-world pause time for both initial and |
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47 // remark pauses sampled at the end of the checkpointRootsFinalWork. |
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48 PerfVariable* _avg_cms_STW_time_counter; |
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49 // Average stop-the-world (STW) GC cost for the STW pause time |
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50 // _avg_cms_STW_time_counter. |
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51 PerfVariable* _avg_cms_STW_gc_cost_counter; |
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52 |
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53 #ifdef NOT_PRODUCT |
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54 // These are useful to see how the most recent values of these |
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55 // counters compare to their respective averages but |
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56 // do not control behavior. |
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57 PerfVariable* _initial_pause_counter; |
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58 PerfVariable* _remark_pause_counter; |
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59 #endif |
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60 |
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61 // Average of the initial marking pause for a concurrent collection. |
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62 PerfVariable* _avg_initial_pause_counter; |
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63 // Average of the remark pause for a concurrent collection. |
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64 PerfVariable* _avg_remark_pause_counter; |
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65 |
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66 // Average for the sum of all the concurrent times per collection. |
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67 PerfVariable* _avg_concurrent_time_counter; |
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68 // Average for the time between the most recent end of a |
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69 // concurrent collection and the beginning of the next |
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70 // concurrent collection. |
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71 PerfVariable* _avg_concurrent_interval_counter; |
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72 // Average of the concurrent GC costs based on _avg_concurrent_time_counter |
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73 // and _avg_concurrent_interval_counter. |
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74 PerfVariable* _avg_concurrent_gc_cost_counter; |
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75 |
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76 // Average of the free space in the tenured generation at the |
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77 // end of the sweep of the tenured generation. |
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78 PerfVariable* _avg_cms_free_counter; |
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79 // Average of the free space in the tenured generation at the |
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80 // start of the sweep of the tenured generation. |
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81 PerfVariable* _avg_cms_free_at_sweep_counter; |
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82 // Average of the free space in the tenured generation at the |
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83 // after any resizing of the tenured generation at the end |
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84 // of a collection of the tenured generation. |
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85 PerfVariable* _avg_cms_promo_counter; |
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86 |
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87 // Average of the mark-sweep-compact (MSC) pause time for a collection |
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88 // of the tenured generation. |
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89 PerfVariable* _avg_msc_pause_counter; |
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90 // Average for the time between the most recent end of a |
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91 // MSC collection and the beginning of the next MSC collection. |
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92 PerfVariable* _avg_msc_interval_counter; |
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93 // Average for the GC cost of a MSC collection based on |
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94 // _avg_msc_pause_counter and _avg_msc_interval_counter. |
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95 PerfVariable* _msc_gc_cost_counter; |
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96 |
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97 // Average of the mark-sweep (MS) pause time for a collection |
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98 // of the tenured generation. |
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99 PerfVariable* _avg_ms_pause_counter; |
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100 // Average for the time between the most recent end of a |
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101 // MS collection and the beginning of the next MS collection. |
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102 PerfVariable* _avg_ms_interval_counter; |
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103 // Average for the GC cost of a MS collection based on |
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104 // _avg_ms_pause_counter and _avg_ms_interval_counter. |
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105 PerfVariable* _ms_gc_cost_counter; |
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106 |
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107 // Average of the bytes promoted per minor collection. |
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108 PerfVariable* _promoted_avg_counter; |
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109 // Average of the deviation of the promoted average. |
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110 PerfVariable* _promoted_avg_dev_counter; |
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111 // Padded average of the bytes promoted per minor collection. |
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112 PerfVariable* _promoted_padded_avg_counter; |
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113 |
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114 // See description of the _change_young_gen_for_maj_pauses |
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115 // variable recently in cmsAdaptiveSizePolicy.hpp. |
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116 PerfVariable* _change_young_gen_for_maj_pauses_counter; |
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117 |
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118 // See descriptions of _remark_pause_old_slope, _initial_pause_old_slope, |
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119 // etc. variables recently in cmsAdaptiveSizePolicy.hpp. |
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120 PerfVariable* _remark_pause_old_slope_counter; |
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121 PerfVariable* _initial_pause_old_slope_counter; |
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122 PerfVariable* _remark_pause_young_slope_counter; |
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123 PerfVariable* _initial_pause_young_slope_counter; |
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124 |
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125 CMSAdaptiveSizePolicy* cms_size_policy() { |
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126 assert(_size_policy->kind() == |
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127 AdaptiveSizePolicy::_gc_cms_adaptive_size_policy, |
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128 "Wrong size policy"); |
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129 return (CMSAdaptiveSizePolicy*)_size_policy; |
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130 } |
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131 |
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132 inline void update_avg_cms_STW_time_counter() { |
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133 _avg_cms_STW_time_counter->set_value( |
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134 (jlong) (cms_size_policy()->avg_cms_STW_time()->average() * |
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135 (double) MILLIUNITS)); |
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136 } |
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137 |
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138 inline void update_avg_cms_STW_gc_cost_counter() { |
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139 _avg_cms_STW_gc_cost_counter->set_value( |
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140 (jlong) (cms_size_policy()->avg_cms_STW_gc_cost()->average() * 100.0)); |
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141 } |
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142 |
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143 inline void update_avg_initial_pause_counter() { |
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144 _avg_initial_pause_counter->set_value( |
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145 (jlong) (cms_size_policy()->avg_initial_pause()->average() * |
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146 (double) MILLIUNITS)); |
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147 } |
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148 #ifdef NOT_PRODUCT |
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149 inline void update_avg_remark_pause_counter() { |
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150 _avg_remark_pause_counter->set_value( |
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151 (jlong) (cms_size_policy()-> avg_remark_pause()->average() * |
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152 (double) MILLIUNITS)); |
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153 } |
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154 |
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155 inline void update_initial_pause_counter() { |
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156 _initial_pause_counter->set_value( |
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157 (jlong) (cms_size_policy()->avg_initial_pause()->average() * |
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158 (double) MILLIUNITS)); |
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159 } |
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160 #endif |
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161 inline void update_remark_pause_counter() { |
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162 _remark_pause_counter->set_value( |
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163 (jlong) (cms_size_policy()-> avg_remark_pause()->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_time_counter() { |
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168 _avg_concurrent_time_counter->set_value( |
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169 (jlong) (cms_size_policy()->avg_concurrent_time()->last_sample() * |
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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_interval_counter() { |
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174 _avg_concurrent_interval_counter->set_value( |
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175 (jlong) (cms_size_policy()->avg_concurrent_interval()->average() * |
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176 (double) MILLIUNITS)); |
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177 } |
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178 |
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179 inline void update_avg_concurrent_gc_cost_counter() { |
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180 _avg_concurrent_gc_cost_counter->set_value( |
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181 (jlong) (cms_size_policy()->avg_concurrent_gc_cost()->average() * 100.0)); |
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182 } |
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183 |
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184 inline void update_avg_cms_free_counter() { |
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185 _avg_cms_free_counter->set_value( |
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186 (jlong) cms_size_policy()->avg_cms_free()->average()); |
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187 } |
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188 |
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189 inline void update_avg_cms_free_at_sweep_counter() { |
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190 _avg_cms_free_at_sweep_counter->set_value( |
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191 (jlong) cms_size_policy()->avg_cms_free_at_sweep()->average()); |
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192 } |
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193 |
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194 inline void update_avg_cms_promo_counter() { |
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195 _avg_cms_promo_counter->set_value( |
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196 (jlong) cms_size_policy()->avg_cms_promo()->average()); |
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197 } |
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198 |
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199 inline void update_avg_old_live_counter() { |
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200 _avg_old_live_counter->set_value( |
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201 (jlong)(cms_size_policy()->avg_old_live()->average()) |
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202 ); |
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203 } |
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204 |
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205 inline void update_avg_msc_pause_counter() { |
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206 _avg_msc_pause_counter->set_value( |
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207 (jlong) (cms_size_policy()->avg_msc_pause()->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_avg_msc_interval_counter() { |
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212 _avg_msc_interval_counter->set_value( |
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213 (jlong) (cms_size_policy()->avg_msc_interval()->average() * |
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214 (double) MILLIUNITS)); |
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215 } |
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216 |
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217 inline void update_msc_gc_cost_counter() { |
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218 _msc_gc_cost_counter->set_value( |
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219 (jlong) (cms_size_policy()->avg_msc_gc_cost()->average() * 100.0)); |
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220 } |
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221 |
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222 inline void update_avg_ms_pause_counter() { |
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223 _avg_ms_pause_counter->set_value( |
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224 (jlong) (cms_size_policy()->avg_ms_pause()->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_avg_ms_interval_counter() { |
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229 _avg_ms_interval_counter->set_value( |
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230 (jlong) (cms_size_policy()->avg_ms_interval()->average() * |
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231 (double) MILLIUNITS)); |
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232 } |
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233 |
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234 inline void update_ms_gc_cost_counter() { |
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235 _ms_gc_cost_counter->set_value( |
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236 (jlong) (cms_size_policy()->avg_ms_gc_cost()->average() * 100.0)); |
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237 } |
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238 |
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239 inline void update_major_gc_cost_counter() { |
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240 _major_gc_cost_counter->set_value( |
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241 (jlong)(cms_size_policy()->cms_gc_cost() * 100.0) |
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242 ); |
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243 } |
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244 inline void update_mutator_cost_counter() { |
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245 _mutator_cost_counter->set_value( |
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246 (jlong)(cms_size_policy()->mutator_cost() * 100.0) |
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247 ); |
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248 } |
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249 |
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250 inline void update_avg_promoted_avg(CMSGCStats* gc_stats) { |
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251 _promoted_avg_counter->set_value( |
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252 (jlong)(gc_stats->avg_promoted()->average()) |
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253 ); |
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254 } |
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255 inline void update_avg_promoted_dev(CMSGCStats* gc_stats) { |
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256 _promoted_avg_dev_counter->set_value( |
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257 (jlong)(gc_stats->avg_promoted()->deviation()) |
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258 ); |
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259 } |
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260 inline void update_avg_promoted_padded_avg(CMSGCStats* gc_stats) { |
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261 _promoted_padded_avg_counter->set_value( |
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262 (jlong)(gc_stats->avg_promoted()->padded_average()) |
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263 ); |
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264 } |
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265 inline void update_remark_pause_old_slope_counter() { |
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266 _remark_pause_old_slope_counter->set_value( |
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267 (jlong)(cms_size_policy()->remark_pause_old_slope() * 1000) |
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268 ); |
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269 } |
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270 inline void update_initial_pause_old_slope_counter() { |
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271 _initial_pause_old_slope_counter->set_value( |
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272 (jlong)(cms_size_policy()->initial_pause_old_slope() * 1000) |
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273 ); |
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274 } |
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275 inline void update_remark_pause_young_slope_counter() { |
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276 _remark_pause_young_slope_counter->set_value( |
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277 (jlong)(cms_size_policy()->remark_pause_young_slope() * 1000) |
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278 ); |
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279 } |
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280 inline void update_initial_pause_young_slope_counter() { |
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281 _initial_pause_young_slope_counter->set_value( |
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282 (jlong)(cms_size_policy()->initial_pause_young_slope() * 1000) |
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283 ); |
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284 } |
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285 inline void update_change_young_gen_for_maj_pauses() { |
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286 _change_young_gen_for_maj_pauses_counter->set_value( |
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287 cms_size_policy()->change_young_gen_for_maj_pauses()); |
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288 } |
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289 |
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290 public: |
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291 CMSGCAdaptivePolicyCounters(const char* name, int collectors, int generations, |
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292 AdaptiveSizePolicy* size_policy); |
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293 |
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294 // update counters |
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295 void update_counters(); |
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296 void update_counters(CMSGCStats* gc_stats); |
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297 void update_counters_from_policy(); |
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298 |
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299 inline void update_cms_capacity_counter(size_t size_in_bytes) { |
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300 _cms_capacity_counter->set_value(size_in_bytes); |
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301 } |
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302 |
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303 virtual GCPolicyCounters::Name kind() const { |
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304 return GCPolicyCounters::CMSGCAdaptivePolicyCountersKind; |
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305 } |
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306 }; |
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307 |
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308 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSGCADAPTIVEPOLICYCOUNTERS_HPP |
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