1 /*
2 * Copyright (c) 2004, 2010, 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 #ifndef SERIALGC
29 #include "gc_implementation/shared/adaptiveSizePolicy.hpp"
30 #include "gc_implementation/shared/gcPolicyCounters.hpp"
31 #endif
32
33 // This class keeps statistical information and computes the
34 // size of the heap.
35
36 class GCAdaptivePolicyCounters : public GCPolicyCounters {
37 protected:
38 PerfVariable* _eden_size_counter;
39 PerfVariable* _promo_size_counter;
40
41 PerfVariable* _young_capacity_counter;
42
43 PerfVariable* _minor_gc_cost_counter;
44 PerfVariable* _major_gc_cost_counter;
45 PerfVariable* _mutator_cost_counter;
46
47 PerfVariable* _avg_young_live_counter;
48 PerfVariable* _avg_old_live_counter;
49
50 PerfVariable* _avg_minor_pause_counter;
51 PerfVariable* _avg_minor_interval_counter;
52
53 #ifdef NOT_PRODUCT
54 PerfVariable* _minor_pause_counter;
55 #endif
56
57 PerfVariable* _change_young_gen_for_min_pauses_counter;
58 PerfVariable* _change_young_gen_for_throughput_counter;
59 PerfVariable* _change_old_gen_for_maj_pauses_counter;
60 PerfVariable* _change_old_gen_for_throughput_counter;
61 PerfVariable* _decrease_for_footprint_counter;
62
63 PerfVariable* _minor_pause_young_slope_counter;
64 PerfVariable* _major_pause_old_slope_counter;
65
66 PerfVariable* _decide_at_full_gc_counter;
67
68 PerfVariable* _survived_counter;
69 PerfVariable* _promoted_counter;
70
71 PerfVariable* _avg_survived_avg_counter;
72 PerfVariable* _avg_survived_dev_counter;
73 PerfVariable* _avg_survived_padded_avg_counter;
74
75 PerfVariable* _survivor_overflowed_counter;
76 PerfVariable* _increment_tenuring_threshold_for_gc_cost_counter;
77 PerfVariable* _decrement_tenuring_threshold_for_gc_cost_counter;
78 PerfVariable* _decrement_tenuring_threshold_for_survivor_limit_counter;
79
80 PerfVariable* _minor_collection_slope_counter;
81 PerfVariable* _major_collection_slope_counter;
82
83 AdaptiveSizePolicy* _size_policy;
84
85 inline void update_eden_size() {
86 size_t eden_size_in_bytes = size_policy()->calculated_eden_size_in_bytes();
87 _eden_size_counter->set_value(eden_size_in_bytes);
88 }
89
90 inline void update_promo_size() {
91 _promo_size_counter->set_value(
92 size_policy()->calculated_promo_size_in_bytes());
93 }
94
95 inline void update_avg_minor_pause_counter() {
96 _avg_minor_pause_counter->set_value((jlong)
97 (size_policy()->avg_minor_pause()->average() * 1000.0));
98 }
99 inline void update_avg_minor_interval_counter() {
100 _avg_minor_interval_counter->set_value((jlong)
101 (size_policy()->avg_minor_interval()->average() * 1000.0));
102 }
103
104 #ifdef NOT_PRODUCT
105 inline void update_minor_pause_counter() {
106 _minor_pause_counter->set_value((jlong)
107 (size_policy()->avg_minor_pause()->last_sample() * 1000.0));
108 }
109 #endif
110 inline void update_minor_gc_cost_counter() {
111 _minor_gc_cost_counter->set_value((jlong)
112 (size_policy()->minor_gc_cost() * 100.0));
113 }
114
115 inline void update_avg_young_live_counter() {
116 _avg_young_live_counter->set_value(
117 (jlong)(size_policy()->avg_young_live()->average())
118 );
119 }
120
121 inline void update_avg_survived_avg_counters() {
122 _avg_survived_avg_counter->set_value(
123 (jlong)(size_policy()->_avg_survived->average())
124 );
125 }
126 inline void update_avg_survived_dev_counters() {
127 _avg_survived_dev_counter->set_value(
128 (jlong)(size_policy()->_avg_survived->deviation())
129 );
130 }
131 inline void update_avg_survived_padded_avg_counters() {
132 _avg_survived_padded_avg_counter->set_value(
133 (jlong)(size_policy()->_avg_survived->padded_average())
134 );
135 }
136
137 inline void update_change_old_gen_for_throughput() {
138 _change_old_gen_for_throughput_counter->set_value(
139 size_policy()->change_old_gen_for_throughput());
140 }
141 inline void update_change_young_gen_for_throughput() {
142 _change_young_gen_for_throughput_counter->set_value(
143 size_policy()->change_young_gen_for_throughput());
144 }
145 inline void update_decrease_for_footprint() {
146 _decrease_for_footprint_counter->set_value(
147 size_policy()->decrease_for_footprint());
148 }
149
150 inline void update_decide_at_full_gc_counter() {
151 _decide_at_full_gc_counter->set_value(
152 size_policy()->decide_at_full_gc());
153 }
154
155 inline void update_minor_pause_young_slope_counter() {
156 _minor_pause_young_slope_counter->set_value(
157 (jlong)(size_policy()->minor_pause_young_slope() * 1000)
158 );
159 }
160
161 virtual void update_counters_from_policy();
162
163 protected:
164 virtual AdaptiveSizePolicy* size_policy() { return _size_policy; }
165
166 public:
167 GCAdaptivePolicyCounters(const char* name,
168 int collectors,
169 int generations,
170 AdaptiveSizePolicy* size_policy);
171
172 inline void update_survived(size_t survived) {
173 _survived_counter->set_value(survived);
174 }
175 inline void update_promoted(size_t promoted) {
176 _promoted_counter->set_value(promoted);
177 }
178 inline void update_young_capacity(size_t size_in_bytes) {
179 _young_capacity_counter->set_value(size_in_bytes);
180 }
181
182 virtual void update_counters();
183
184 inline void update_survivor_size_counters() {
185 desired_survivor_size()->set_value(
186 size_policy()->calculated_survivor_size_in_bytes());
187 }
188 inline void update_survivor_overflowed(bool survivor_overflowed) {
189 _survivor_overflowed_counter->set_value(survivor_overflowed);
190 }
191 inline void update_tenuring_threshold(int threshold) {
192 tenuring_threshold()->set_value(threshold);
193 }
194 inline void update_increment_tenuring_threshold_for_gc_cost() {
195 _increment_tenuring_threshold_for_gc_cost_counter->set_value(
196 size_policy()->increment_tenuring_threshold_for_gc_cost());
197 }
198 inline void update_decrement_tenuring_threshold_for_gc_cost() {
199 _decrement_tenuring_threshold_for_gc_cost_counter->set_value(
200 size_policy()->decrement_tenuring_threshold_for_gc_cost());
201 }
202 inline void update_decrement_tenuring_threshold_for_survivor_limit() {
203 _decrement_tenuring_threshold_for_survivor_limit_counter->set_value(
204 size_policy()->decrement_tenuring_threshold_for_survivor_limit());
205 }
206 inline void update_change_young_gen_for_min_pauses() {
207 _change_young_gen_for_min_pauses_counter->set_value(
208 size_policy()->change_young_gen_for_min_pauses());
209 }
210 inline void update_change_old_gen_for_maj_pauses() {
211 _change_old_gen_for_maj_pauses_counter->set_value(
212 size_policy()->change_old_gen_for_maj_pauses());
213 }
214
215 inline void update_minor_collection_slope_counter() {
216 _minor_collection_slope_counter->set_value(
217 (jlong)(size_policy()->minor_collection_slope() * 1000)
218 );
219 }
220
221 inline void update_major_collection_slope_counter() {
222 _major_collection_slope_counter->set_value(
223 (jlong)(size_policy()->major_collection_slope() * 1000)
224 );
225 }
226
227 void set_size_policy(AdaptiveSizePolicy* v) { _size_policy = v; }
228
229 virtual GCPolicyCounters::Name kind() const {
230 return GCPolicyCounters::GCAdaptivePolicyCountersKind;
231 }
232 };
233
234 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCADAPTIVEPOLICYCOUNTERS_HPP