1/*
2 * Copyright (c) 2001, 2018, 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#include "precompiled.hpp"
25#include "gc/shared/gcTimer.hpp"
26#include "utilities/ticks.hpp"
27#include "unittest.hpp"
28
29class GCTimerTest {
30 public:
31 static void register_gc_start(GCTimer* const timer, jlong ticks) {
32 timer->register_gc_start(Ticks(ticks));
33 }
34 static void register_gc_end(GCTimer* const timer, jlong ticks) {
35 timer->register_gc_end(Ticks(ticks));
36 }
37};
38
39TEST(GCTimer, start) {
40 GCTimer gc_timer;
41 GCTimerTest::register_gc_start(&gc_timer, 1);
42
43 EXPECT_EQ(1, gc_timer.gc_start().value());
44}
45
46TEST(GCTimer, end) {
47 GCTimer gc_timer;
48
49 GCTimerTest::register_gc_start(&gc_timer, 1);
50 GCTimerTest::register_gc_end(&gc_timer, 2);
51
52 EXPECT_EQ(2, gc_timer.gc_end().value());
53}
54
55class TimePartitionPhasesIteratorTest {
56 public:
57
58 static void validate_gc_phase(GCPhase* phase, int level, const char* name, const jlong& start, const jlong& end) {
59 EXPECT_EQ(level, phase->level());
60 EXPECT_STREQ(name, phase->name());
61 EXPECT_EQ(start, phase->start().value());
62 EXPECT_EQ(end, phase->end().value());
63 }
64
65 static void validate_pauses(const TimePartitions& time_partitions, const Tickspan& expected_sum_of_pauses, const Tickspan& expected_longest_pause) {
66 EXPECT_EQ(expected_sum_of_pauses, time_partitions.sum_of_pauses());
67 EXPECT_EQ(expected_longest_pause, time_partitions.longest_pause());
68 }
69 static void validate_pauses(const TimePartitions& time_partitions, const Tickspan& expected_pause) {
70 TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, expected_pause, expected_pause);
71 }
72 static void validate_pauses(const TimePartitions& time_partitions, jlong end, jlong start) {
73 TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, Ticks(end) - Ticks(start));
74 }
75 static void validate_pauses(const TimePartitions& time_partitions, jlong all_end, jlong all_start, jlong longest_end, jlong longest_start) {
76 TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, Ticks(all_end) - Ticks(all_start), Ticks(longest_end) - Ticks(longest_start));
77 }
78
79 static void report_gc_phase_start(TimePartitions* const partitions, const char* name, jlong ticks, GCPhase::PhaseType type=GCPhase::PausePhaseType) {
80 partitions->report_gc_phase_start(name, Ticks(ticks), type);
81 }
82
83 static void report_gc_phase_end(TimePartitions* const partitions, jlong ticks, GCPhase::PhaseType type=GCPhase::PausePhaseType) {
84 partitions->report_gc_phase_end(Ticks(ticks), type);
85 }
86};
87
88TEST(TimePartitionPhasesIterator, one_pause) {
89 TimePartitions time_partitions;
90 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);
91 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);
92
93 TimePartitionPhasesIterator iter(&time_partitions);
94
95 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 8));
96
97 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 8, 2));
98
99 EXPECT_FALSE(iter.has_next()) << "Too many elements";
100}
101
102TEST(TimePartitionPhasesIterator, two_pauses) {
103 TimePartitions time_partitions;
104 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase1", 2);
105 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 3);
106 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase2", 4);
107 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 6);
108
109 TimePartitionPhasesIterator iter(&time_partitions);
110
111 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase1", 2, 3));
112 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase2", 4, 6));
113
114 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 3, 0, 2, 0));
115
116 EXPECT_FALSE(iter.has_next()) << "Too many elements";
117}
118
119TEST(TimePartitionPhasesIterator, one_sub_pause_phase) {
120 TimePartitions time_partitions;
121 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);
122 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase", 3);
123 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 4);
124 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 5);
125
126 TimePartitionPhasesIterator iter(&time_partitions);
127
128 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 5));
129 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase", 3, 4));
130
131 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 3, 0));
132
133 EXPECT_FALSE(iter.has_next()) << "Too many elements";
134}
135
136TEST(TimePartitionPhasesIterator, max_nested_pause_phases) {
137 TimePartitions time_partitions;
138 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);
139 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase1", 3);
140 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase2", 4);
141 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase3", 5);
142 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 6);
143 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 7);
144 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);
145 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 9);
146
147 TimePartitionPhasesIterator iter(&time_partitions);
148
149 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 9));
150 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase1", 3, 8));
151 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase2", 4, 7));
152 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 3, "SubPhase3", 5, 6));
153
154 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 7, 0));
155
156 EXPECT_FALSE(iter.has_next()) << "Too many elements";
157}
158
159TEST(TimePartitionPhasesIterator, many_sub_pause_phases) {
160 TimePartitions time_partitions;
161 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);
162
163 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase1", 3);
164 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 4);
165 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase2", 5);
166 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 6);
167 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase3", 7);
168 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);
169 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase4", 9);
170 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 10);
171
172 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 11);
173
174 TimePartitionPhasesIterator iter(&time_partitions);
175
176 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 11));
177 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase1", 3, 4));
178 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase2", 5, 6));
179 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase3", 7, 8));
180 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase4", 9, 10));
181
182 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 9, 0));
183
184 EXPECT_FALSE(iter.has_next()) << "Too many elements";
185}
186
187TEST(TimePartitionPhasesIterator, many_sub_pause_phases2) {
188 TimePartitions time_partitions;
189 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "PausePhase", 2);
190
191 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase1", 3);
192 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase11", 4);
193 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 5);
194 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase12", 6);
195 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 7);
196 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8);
197
198 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase2", 9);
199 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase21", 10);
200 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 11);
201 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase22", 12);
202 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 13);
203 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 14);
204
205 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "SubPhase3", 15);
206 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 16);
207
208 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 17);
209
210 TimePartitionPhasesIterator iter(&time_partitions);
211
212 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "PausePhase", 2, 17));
213 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase1", 3, 8));
214 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase11", 4, 5));
215 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase12", 6, 7));
216 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase2", 9, 14));
217 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase21", 10, 11));
218 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 2, "SubPhase22", 12, 13));
219 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 1, "SubPhase3", 15, 16));
220
221 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, 15, 0));
222
223 EXPECT_FALSE(iter.has_next()) << "Too many elements";
224}
225
226TEST(TimePartitionPhasesIterator, one_concurrent) {
227 TimePartitions time_partitions;
228 TimePartitionPhasesIteratorTest::report_gc_phase_start(&time_partitions, "ConcurrentPhase", 2, GCPhase::ConcurrentPhaseType);
229 TimePartitionPhasesIteratorTest::report_gc_phase_end(&time_partitions, 8, GCPhase::ConcurrentPhaseType);
230
231 TimePartitionPhasesIterator iter(&time_partitions);
232
233 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_gc_phase(iter.next(), 0, "ConcurrentPhase", 2, 8));
234 // ConcurrentPhaseType should not affect to both 'sum_of_pauses()' and 'longest_pause()'.
235 EXPECT_NO_FATAL_FAILURE(TimePartitionPhasesIteratorTest::validate_pauses(time_partitions, Tickspan()));
236
237 EXPECT_FALSE(iter.has_next()) << "Too many elements";
238}
239