1 /*
2 * Copyright (c) 2004, 2005, 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 // This class keeps statistical information and computes the
26 // size of the heap.
27
28 class GCAdaptivePolicyCounters : public GCPolicyCounters {
29 protected:
30 PerfVariable* _eden_size_counter;
31 PerfVariable* _promo_size_counter;
32
33 PerfVariable* _young_capacity_counter;
34
35 PerfVariable* _minor_gc_cost_counter;
36 PerfVariable* _major_gc_cost_counter;
37 PerfVariable* _mutator_cost_counter;
38
39 PerfVariable* _avg_young_live_counter;
40 PerfVariable* _avg_old_live_counter;
41
42 PerfVariable* _avg_minor_pause_counter;
43 PerfVariable* _avg_minor_interval_counter;
44
45 #ifdef NOT_PRODUCT
46 PerfVariable* _minor_pause_counter;
47 #endif
48
49 PerfVariable* _change_young_gen_for_min_pauses_counter;
50 PerfVariable* _change_young_gen_for_throughput_counter;
51 PerfVariable* _change_old_gen_for_maj_pauses_counter;
52 PerfVariable* _change_old_gen_for_throughput_counter;
53 PerfVariable* _decrease_for_footprint_counter;
54
55 PerfVariable* _minor_pause_young_slope_counter;
56 PerfVariable* _major_pause_old_slope_counter;
57
58 PerfVariable* _decide_at_full_gc_counter;
59
60 PerfVariable* _survived_counter;
61 PerfVariable* _promoted_counter;
62
63 PerfVariable* _avg_survived_avg_counter;
64 PerfVariable* _avg_survived_dev_counter;
65 PerfVariable* _avg_survived_padded_avg_counter;
66
67 PerfVariable* _survivor_overflowed_counter;
68 PerfVariable* _increment_tenuring_threshold_for_gc_cost_counter;
69 PerfVariable* _decrement_tenuring_threshold_for_gc_cost_counter;
70 PerfVariable* _decrement_tenuring_threshold_for_survivor_limit_counter;
71
72 PerfVariable* _minor_collection_slope_counter;
73 PerfVariable* _major_collection_slope_counter;
74
75 AdaptiveSizePolicy* _size_policy;
76
77 inline void update_eden_size() {
78 size_t eden_size_in_bytes = size_policy()->calculated_eden_size_in_bytes();
79 _eden_size_counter->set_value(eden_size_in_bytes);
80 }
81
82 inline void update_promo_size() {
83 _promo_size_counter->set_value(
84 size_policy()->calculated_promo_size_in_bytes());
85 }
86
87 inline void update_avg_minor_pause_counter() {
88 _avg_minor_pause_counter->set_value((jlong)
89 (size_policy()->avg_minor_pause()->average() * 1000.0));
90 }
91 inline void update_avg_minor_interval_counter() {
92 _avg_minor_interval_counter->set_value((jlong)
93 (size_policy()->avg_minor_interval()->average() * 1000.0));
94 }
95
96 #ifdef NOT_PRODUCT
97 inline void update_minor_pause_counter() {
98 _minor_pause_counter->set_value((jlong)
99 (size_policy()->avg_minor_pause()->last_sample() * 1000.0));
100 }
101 #endif
102 inline void update_minor_gc_cost_counter() {
103 _minor_gc_cost_counter->set_value((jlong)
104 (size_policy()->minor_gc_cost() * 100.0));
105 }
106
107 inline void update_avg_young_live_counter() {
108 _avg_young_live_counter->set_value(
109 (jlong)(size_policy()->avg_young_live()->average())
110 );
111 }
112
113 inline void update_avg_survived_avg_counters() {
114 _avg_survived_avg_counter->set_value(
115 (jlong)(size_policy()->_avg_survived->average())
116 );
117 }
118 inline void update_avg_survived_dev_counters() {
119 _avg_survived_dev_counter->set_value(
120 (jlong)(size_policy()->_avg_survived->deviation())
121 );
122 }
123 inline void update_avg_survived_padded_avg_counters() {
124 _avg_survived_padded_avg_counter->set_value(
125 (jlong)(size_policy()->_avg_survived->padded_average())
126 );
127 }
128
129 inline void update_change_old_gen_for_throughput() {
130 _change_old_gen_for_throughput_counter->set_value(
131 size_policy()->change_old_gen_for_throughput());
132 }
133 inline void update_change_young_gen_for_throughput() {
134 _change_young_gen_for_throughput_counter->set_value(
135 size_policy()->change_young_gen_for_throughput());
136 }
137 inline void update_decrease_for_footprint() {
138 _decrease_for_footprint_counter->set_value(
139 size_policy()->decrease_for_footprint());
140 }
141
142 inline void update_decide_at_full_gc_counter() {
143 _decide_at_full_gc_counter->set_value(
144 size_policy()->decide_at_full_gc());
145 }
146
147 inline void update_minor_pause_young_slope_counter() {
148 _minor_pause_young_slope_counter->set_value(
149 (jlong)(size_policy()->minor_pause_young_slope() * 1000)
150 );
151 }
152
153 virtual void update_counters_from_policy();
154
155 protected:
156 virtual AdaptiveSizePolicy* size_policy() { return _size_policy; }
157
158 public:
159 GCAdaptivePolicyCounters(const char* name,
160 int collectors,
161 int generations,
162 AdaptiveSizePolicy* size_policy);
163
164 inline void update_survived(size_t survived) {
165 _survived_counter->set_value(survived);
166 }
167 inline void update_promoted(size_t promoted) {
168 _promoted_counter->set_value(promoted);
169 }
170 inline void update_young_capacity(size_t size_in_bytes) {
171 _young_capacity_counter->set_value(size_in_bytes);
172 }
173
174 virtual void update_counters();
175
176 inline void update_survivor_size_counters() {
177 desired_survivor_size()->set_value(
178 size_policy()->calculated_survivor_size_in_bytes());
179 }
180 inline void update_survivor_overflowed(bool survivor_overflowed) {
181 _survivor_overflowed_counter->set_value(survivor_overflowed);
182 }
183 inline void update_tenuring_threshold(int threshold) {
184 tenuring_threshold()->set_value(threshold);
185 }
186 inline void update_increment_tenuring_threshold_for_gc_cost() {
187 _increment_tenuring_threshold_for_gc_cost_counter->set_value(
188 size_policy()->increment_tenuring_threshold_for_gc_cost());
189 }
190 inline void update_decrement_tenuring_threshold_for_gc_cost() {
191 _decrement_tenuring_threshold_for_gc_cost_counter->set_value(
192 size_policy()->decrement_tenuring_threshold_for_gc_cost());
193 }
194 inline void update_decrement_tenuring_threshold_for_survivor_limit() {
195 _decrement_tenuring_threshold_for_survivor_limit_counter->set_value(
196 size_policy()->decrement_tenuring_threshold_for_survivor_limit());
197 }
198 inline void update_change_young_gen_for_min_pauses() {
199 _change_young_gen_for_min_pauses_counter->set_value(
200 size_policy()->change_young_gen_for_min_pauses());
201 }
202 inline void update_change_old_gen_for_maj_pauses() {
203 _change_old_gen_for_maj_pauses_counter->set_value(
204 size_policy()->change_old_gen_for_maj_pauses());
205 }
206
207 inline void update_minor_collection_slope_counter() {
208 _minor_collection_slope_counter->set_value(
209 (jlong)(size_policy()->minor_collection_slope() * 1000)
210 );
211 }
212
213 inline void update_major_collection_slope_counter() {
214 _major_collection_slope_counter->set_value(
215 (jlong)(size_policy()->major_collection_slope() * 1000)
216 );
217 }
218
219 void set_size_policy(AdaptiveSizePolicy* v) { _size_policy = v; }
220
221 virtual GCPolicyCounters::Name kind() const {
222 return GCPolicyCounters::GCAdaptivePolicyCountersKind;
223 }
224 };