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17764
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1 /*
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2 * Copyright (c) 2014, 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_G1_G1STRINGDEDUPSTAT_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP
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27
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28 #include "memory/allocation.hpp"
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29 #include "runtime/os.hpp"
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30
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31 // Macros for GC log output formating
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32 #define G1_STRDEDUP_OBJECTS_FORMAT UINTX_FORMAT_W(12)
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33 #define G1_STRDEDUP_TIME_FORMAT "%1.7lf secs"
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34 #define G1_STRDEDUP_PERCENT_FORMAT "%5.1lf%%"
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35 #define G1_STRDEDUP_PERCENT_FORMAT_NS "%.1lf%%"
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36 #define G1_STRDEDUP_BYTES_FORMAT "%8.1lf%s"
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37 #define G1_STRDEDUP_BYTES_FORMAT_NS "%.1lf%s"
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38 #define G1_STRDEDUP_BYTES_PARAM(bytes) byte_size_in_proper_unit((double)(bytes)), proper_unit_for_byte_size((bytes))
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39
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40 //
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41 // Statistics gathered by the deduplication thread.
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42 //
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43 class G1StringDedupStat : public StackObj {
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44 private:
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45 // Counters
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46 uintx _inspected;
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47 uintx _skipped;
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48 uintx _hashed;
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49 uintx _known;
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50 uintx _new;
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51 uintx _new_bytes;
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52 uintx _deduped;
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53 uintx _deduped_bytes;
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54 uintx _deduped_young;
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55 uintx _deduped_young_bytes;
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56 uintx _deduped_old;
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57 uintx _deduped_old_bytes;
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58 uintx _idle;
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59 uintx _exec;
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60 uintx _block;
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61
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62 // Time spent by the deduplication thread in different phases
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63 double _start;
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64 double _idle_elapsed;
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65 double _exec_elapsed;
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66 double _block_elapsed;
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67
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68 public:
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69 G1StringDedupStat();
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70
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71 void inc_inspected() {
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72 _inspected++;
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73 }
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74
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75 void inc_skipped() {
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76 _skipped++;
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77 }
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78
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79 void inc_hashed() {
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80 _hashed++;
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81 }
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82
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83 void inc_known() {
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84 _known++;
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85 }
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86
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87 void inc_new(uintx bytes) {
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88 _new++;
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89 _new_bytes += bytes;
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90 }
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91
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92 void inc_deduped_young(uintx bytes) {
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93 _deduped++;
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94 _deduped_bytes += bytes;
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95 _deduped_young++;
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96 _deduped_young_bytes += bytes;
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97 }
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98
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99 void inc_deduped_old(uintx bytes) {
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100 _deduped++;
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101 _deduped_bytes += bytes;
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102 _deduped_old++;
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103 _deduped_old_bytes += bytes;
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104 }
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105
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106 void mark_idle() {
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107 _start = os::elapsedTime();
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108 _idle++;
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109 }
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110
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111 void mark_exec() {
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112 double now = os::elapsedTime();
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113 _idle_elapsed = now - _start;
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114 _start = now;
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115 _exec++;
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116 }
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117
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118 void mark_block() {
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119 double now = os::elapsedTime();
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120 _exec_elapsed += now - _start;
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121 _start = now;
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122 _block++;
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123 }
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124
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125 void mark_unblock() {
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126 double now = os::elapsedTime();
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127 _block_elapsed += now - _start;
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128 _start = now;
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129 }
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130
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131 void mark_done() {
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132 double now = os::elapsedTime();
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133 _exec_elapsed += now - _start;
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134 }
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135
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136 void add(const G1StringDedupStat& stat);
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137
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138 static void print_summary(outputStream* st, const G1StringDedupStat& last_stat, const G1StringDedupStat& total_stat);
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139 static void print_statistics(outputStream* st, const G1StringDedupStat& stat, bool total);
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140 };
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141
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142 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1STRINGDEDUPSTAT_HPP
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