1 /*
2 * Copyright (c) 2004, 2013, 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_IMPLEMENTATION_SHARED_GCADAPTIVEPOLICYCOUNTERS_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCADAPTIVEPOLICYCOUNTERS_HPP
27
28 #include "utilities/macros.hpp"
29 #if INCLUDE_ALL_GCS
30 #include "gc_implementation/shared/adaptiveSizePolicy.hpp"
31 #include "gc_implementation/shared/gcPolicyCounters.hpp"
32 #endif // INCLUDE_ALL_GCS
33
34 // This class keeps statistical information and computes the
35 // size of the heap.
36
37 class GCAdaptivePolicyCounters : public GCPolicyCounters {
38 protected:
39 PerfVariable* _eden_size_counter;
40 PerfVariable* _promo_size_counter;
41
42 PerfVariable* _young_capacity_counter;
43
44 PerfVariable* _minor_gc_cost_counter;
45 PerfVariable* _major_gc_cost_counter;
46 PerfVariable* _mutator_cost_counter;
47
48 PerfVariable* _avg_young_live_counter;
49 PerfVariable* _avg_old_live_counter;
50
51 PerfVariable* _avg_minor_pause_counter;
52 PerfVariable* _avg_minor_interval_counter;
53
54 #ifdef NOT_PRODUCT
55 PerfVariable* _minor_pause_counter;
56 #endif
57
58 PerfVariable* _change_young_gen_for_min_pauses_counter;
59 PerfVariable* _change_young_gen_for_throughput_counter;
60 PerfVariable* _change_old_gen_for_maj_pauses_counter;
61 PerfVariable* _change_old_gen_for_throughput_counter;
62 PerfVariable* _decrease_for_footprint_counter;
63
64 PerfVariable* _minor_pause_young_slope_counter;
65 PerfVariable* _major_pause_old_slope_counter;
66
67 PerfVariable* _decide_at_full_gc_counter;
68
69 PerfVariable* _survived_counter;
70 PerfVariable* _promoted_counter;
71
72 PerfVariable* _avg_survived_avg_counter;
73 PerfVariable* _avg_survived_dev_counter;
74 PerfVariable* _avg_survived_padded_avg_counter;
75
76 PerfVariable* _survivor_overflowed_counter;
77 PerfVariable* _increment_tenuring_threshold_for_gc_cost_counter;
78 PerfVariable* _decrement_tenuring_threshold_for_gc_cost_counter;
79 PerfVariable* _decrement_tenuring_threshold_for_survivor_limit_counter;
80
81 PerfVariable* _minor_collection_slope_counter;
82 PerfVariable* _major_collection_slope_counter;
83
84 AdaptiveSizePolicy* _size_policy;
85
86 inline void update_eden_size() {
87 size_t eden_size_in_bytes = size_policy()->calculated_eden_size_in_bytes();
88 _eden_size_counter->set_value(eden_size_in_bytes);
89 }
90
91 inline void update_promo_size() {
92 _promo_size_counter->set_value(
93 size_policy()->calculated_promo_size_in_bytes());
94 }
95
96 inline void update_avg_minor_pause_counter() {
97 _avg_minor_pause_counter->set_value((jlong)
98 (size_policy()->avg_minor_pause()->average() * 1000.0));
99 }
100 inline void update_avg_minor_interval_counter() {
101 _avg_minor_interval_counter->set_value((jlong)
102 (size_policy()->avg_minor_interval()->average() * 1000.0));
103 }
104
105 #ifdef NOT_PRODUCT
106 inline void update_minor_pause_counter() {
107 _minor_pause_counter->set_value((jlong)
108 (size_policy()->avg_minor_pause()->last_sample() * 1000.0));
109 }
110 #endif
111 inline void update_minor_gc_cost_counter() {
112 _minor_gc_cost_counter->set_value((jlong)
113 (size_policy()->minor_gc_cost() * 100.0));
114 }
115
116 inline void update_avg_young_live_counter() {
117 _avg_young_live_counter->set_value(
118 (jlong)(size_policy()->avg_young_live()->average())
119 );
120 }
121
122 inline void update_avg_survived_avg_counters() {
123 _avg_survived_avg_counter->set_value(
124 (jlong)(size_policy()->_avg_survived->average())
125 );
126 }
127 inline void update_avg_survived_dev_counters() {
128 _avg_survived_dev_counter->set_value(
129 (jlong)(size_policy()->_avg_survived->deviation())
130 );
131 }
132 inline void update_avg_survived_padded_avg_counters() {
133 _avg_survived_padded_avg_counter->set_value(
134 (jlong)(size_policy()->_avg_survived->padded_average())
135 );
136 }
137
138 inline void update_change_old_gen_for_throughput() {
139 _change_old_gen_for_throughput_counter->set_value(
140 size_policy()->change_old_gen_for_throughput());
141 }
142 inline void update_change_young_gen_for_throughput() {
143 _change_young_gen_for_throughput_counter->set_value(
144 size_policy()->change_young_gen_for_throughput());
145 }
146 inline void update_decrease_for_footprint() {
147 _decrease_for_footprint_counter->set_value(
148 size_policy()->decrease_for_footprint());
149 }
150
151 inline void update_decide_at_full_gc_counter() {
152 _decide_at_full_gc_counter->set_value(
153 size_policy()->decide_at_full_gc());
154 }
155
156 inline void update_minor_pause_young_slope_counter() {
157 _minor_pause_young_slope_counter->set_value(
158 (jlong)(size_policy()->minor_pause_young_slope() * 1000)
159 );
160 }
161
162 virtual void update_counters_from_policy();
163
164 protected:
165 virtual AdaptiveSizePolicy* size_policy() { return _size_policy; }
166
167 public:
168 GCAdaptivePolicyCounters(const char* name,
169 int collectors,
170 int generations,
171 AdaptiveSizePolicy* size_policy);
172
173 inline void update_survived(size_t survived) {
174 _survived_counter->set_value(survived);
175 }
176 inline void update_promoted(size_t promoted) {
177 _promoted_counter->set_value(promoted);
178 }
179 inline void update_young_capacity(size_t size_in_bytes) {
180 _young_capacity_counter->set_value(size_in_bytes);
181 }
182
183 virtual void update_counters();
184
185 inline void update_survivor_size_counters() {
186 desired_survivor_size()->set_value(
187 size_policy()->calculated_survivor_size_in_bytes());
188 }
189 inline void update_survivor_overflowed(bool survivor_overflowed) {
190 _survivor_overflowed_counter->set_value(survivor_overflowed);
191 }
192 inline void update_tenuring_threshold(uint threshold) {
193 tenuring_threshold()->set_value(threshold);
194 }
195 inline void update_increment_tenuring_threshold_for_gc_cost() {
196 _increment_tenuring_threshold_for_gc_cost_counter->set_value(
197 size_policy()->increment_tenuring_threshold_for_gc_cost());
198 }
199 inline void update_decrement_tenuring_threshold_for_gc_cost() {
200 _decrement_tenuring_threshold_for_gc_cost_counter->set_value(
201 size_policy()->decrement_tenuring_threshold_for_gc_cost());
202 }
203 inline void update_decrement_tenuring_threshold_for_survivor_limit() {
204 _decrement_tenuring_threshold_for_survivor_limit_counter->set_value(
205 size_policy()->decrement_tenuring_threshold_for_survivor_limit());
206 }
207 inline void update_change_young_gen_for_min_pauses() {
208 _change_young_gen_for_min_pauses_counter->set_value(
209 size_policy()->change_young_gen_for_min_pauses());
210 }
211 inline void update_change_old_gen_for_maj_pauses() {
212 _change_old_gen_for_maj_pauses_counter->set_value(
213 size_policy()->change_old_gen_for_maj_pauses());
214 }
215
216 inline void update_minor_collection_slope_counter() {
217 _minor_collection_slope_counter->set_value(
218 (jlong)(size_policy()->minor_collection_slope() * 1000)
219 );
220 }
221
222 inline void update_major_collection_slope_counter() {
223 _major_collection_slope_counter->set_value(
224 (jlong)(size_policy()->major_collection_slope() * 1000)
225 );
226 }
227
228 void set_size_policy(AdaptiveSizePolicy* v) { _size_policy = v; }
229
230 virtual GCPolicyCounters::Name kind() const {
231 return GCPolicyCounters::GCAdaptivePolicyCountersKind;
232 }
233 };
234
235 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCADAPTIVEPOLICYCOUNTERS_HPP