1 /*
2 * Copyright (c) 2014, 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 * @test TestGCLogMessages
26 * @bug 8035406 8027295 8035398 8019342 8027959 8048179
27 * @summary Ensure that the PrintGCDetails output for a minor GC with G1
28 * includes the expected necessary messages.
29 * @key gc
30 * @library /testlibrary
31 */
32
33 import com.oracle.java.testlibrary.ProcessTools;
34 import com.oracle.java.testlibrary.OutputAnalyzer;
35
36 public class TestGCLogMessages {
37 public static void main(String[] args) throws Exception {
38 testNormalLogs();
39 testWithToSpaceExhaustionLogs();
40 }
41
42 private static void testNormalLogs() throws Exception {
43
44 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
45 "-Xmx10M",
46 GCTest.class.getName());
47
48 OutputAnalyzer output = new OutputAnalyzer(pb.start());
49
50 output.shouldNotContain("[Redirty Cards");
51 output.shouldNotContain("[Parallel Redirty");
52 output.shouldNotContain("[Redirtied Cards");
53 output.shouldNotContain("[Code Root Purge");
54 output.shouldNotContain("[String Dedup Fixup");
55 output.shouldNotContain("[Young Free CSet");
56 output.shouldNotContain("[Non-Young Free CSet");
57 output.shouldNotContain("[Humongous Register");
58 output.shouldNotContain("[Humongous Reclaim");
59 output.shouldHaveExitValue(0);
60
61 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
62 "-XX:+UseStringDeduplication",
63 "-Xmx10M",
64 "-XX:+PrintGCDetails",
65 GCTest.class.getName());
66
67 output = new OutputAnalyzer(pb.start());
68
69 output.shouldContain("[Redirty Cards");
70 output.shouldNotContain("[Parallel Redirty");
71 output.shouldNotContain("[Redirtied Cards");
72 output.shouldContain("[Code Root Purge");
73 output.shouldContain("[String Dedup Fixup");
74 output.shouldNotContain("[Young Free CSet");
75 output.shouldNotContain("[Non-Young Free CSet");
76 output.shouldContain("[Humongous Register");
77 output.shouldNotContain("[Humongous Total");
78 output.shouldNotContain("[Humongous Candidate");
79 output.shouldContain("[Humongous Reclaim");
80 output.shouldNotContain("[Humongous Reclaimed");
81 output.shouldHaveExitValue(0);
82
83 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
84 "-XX:+UseStringDeduplication",
85 "-Xmx10M",
86 "-XX:+PrintGCDetails",
87 "-XX:+UnlockExperimentalVMOptions",
88 "-XX:G1LogLevel=finest",
89 GCTest.class.getName());
90
91 output = new OutputAnalyzer(pb.start());
92
93 output.shouldContain("[Redirty Cards");
94 output.shouldContain("[Parallel Redirty");
95 output.shouldContain("[Redirtied Cards");
96 output.shouldContain("[Code Root Purge");
97 output.shouldContain("[String Dedup Fixup");
98 output.shouldContain("[Young Free CSet");
99 output.shouldContain("[Non-Young Free CSet");
100 output.shouldContain("[Humongous Register");
101 output.shouldContain("[Humongous Total");
102 output.shouldContain("[Humongous Candidate");
103 output.shouldContain("[Humongous Reclaim");
104 output.shouldContain("[Humongous Reclaimed");
105 output.shouldHaveExitValue(0);
106 }
107
108 private static void testWithToSpaceExhaustionLogs() throws Exception {
109 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
110 "-Xmx32M",
111 "-Xmn16M",
112 "-XX:+PrintGCDetails",
113 GCTestWithToSpaceExhaustion.class.getName());
114
115 OutputAnalyzer output = new OutputAnalyzer(pb.start());
116 output.shouldContain("[Evacuation Failure");
117 output.shouldNotContain("[Recalculate Used");
118 output.shouldNotContain("[Remove Self Forwards");
119 output.shouldNotContain("[Restore RemSet");
120 output.shouldHaveExitValue(0);
121
122 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
123 "-Xmx32M",
124 "-Xmn16M",
125 "-XX:+PrintGCDetails",
126 "-XX:+UnlockExperimentalVMOptions",
127 "-XX:G1LogLevel=finest",
128 GCTestWithToSpaceExhaustion.class.getName());
129
130 output = new OutputAnalyzer(pb.start());
131 output.shouldContain("[Evacuation Failure");
132 output.shouldContain("[Recalculate Used");
133 output.shouldContain("[Remove Self Forwards");
134 output.shouldContain("[Restore RemSet");
135 output.shouldHaveExitValue(0);
136 }
137
138 static class GCTest {
139 private static byte[] garbage;
140 public static void main(String [] args) {
141 System.out.println("Creating garbage");
142 // create 128MB of garbage. This should result in at least one GC
143 for (int i = 0; i < 1024; i++) {
144 garbage = new byte[128 * 1024];
145 }
146 System.out.println("Done");
147 }
148 }
149
150 static class GCTestWithToSpaceExhaustion {
151 private static byte[] garbage;
152 private static byte[] largeObject;
153 public static void main(String [] args) {
154 largeObject = new byte[16*1024*1024];
155 System.out.println("Creating garbage");
156 // create 128MB of garbage. This should result in at least one GC,
157 // some of them with to-space exhaustion.
158 for (int i = 0; i < 1024; i++) {
159 garbage = new byte[128 * 1024];
160 }
161 System.out.println("Done");
162 }
163 }
164 }