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 8027962
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 private class LogMessageWithLevel {
38 String message;
39 int level;
40
41 public LogMessageWithLevel(String message, int level) {
42 this.message = message;
43 this.level = level;
44 }
45 };
46
47 LogMessageWithLevel messages[] = new LogMessageWithLevel[] {
48 // Ext Root Scan
49 new LogMessageWithLevel("Thread Roots (ms)", 3),
50 new LogMessageWithLevel("StringTable Roots (ms)", 3),
51 new LogMessageWithLevel("Universe Roots (ms)", 3),
52 new LogMessageWithLevel("JNI Handles Roots (ms)", 3),
53 new LogMessageWithLevel("ObjectSynchronizer Roots (ms)", 3),
54 new LogMessageWithLevel("FlatProfiler Roots", 3),
55 new LogMessageWithLevel("Management Roots", 3),
56 new LogMessageWithLevel("SystemDictionary Roots", 3),
57 new LogMessageWithLevel("CLDG Roots", 3),
58 new LogMessageWithLevel("JVMTI Roots", 3),
59 new LogMessageWithLevel("CodeCache Roots", 3),
60 new LogMessageWithLevel("Filter SATB Roots", 3),
61 new LogMessageWithLevel("CM RefProcessor Roots", 3),
62 new LogMessageWithLevel("Wait For Strong CLD", 3),
63 new LogMessageWithLevel("Weak CLD Roots", 3),
64 // Redirty Cards
65 new LogMessageWithLevel("Redirty Cards", 2),
66 new LogMessageWithLevel("Parallel Redirty", 3),
67 new LogMessageWithLevel("Redirtied Cards", 3),
68 // Misc Top-level
69 new LogMessageWithLevel("Code Root Purge", 2),
70 new LogMessageWithLevel("String Dedup Fixup", 2),
71 // Free CSet
72 new LogMessageWithLevel("Young Free CSet", 3),
73 new LogMessageWithLevel("Non-Young Free CSet", 3),
74 // Humongous Eager Reclaim
75 new LogMessageWithLevel("Humongous Reclaim", 2),
76 new LogMessageWithLevel("Humongous Register", 2),
77 };
78
79 void checkMessagesAtLevel(OutputAnalyzer output, LogMessageWithLevel messages[], int level) throws Exception {
80 for (LogMessageWithLevel l : messages) {
81 if (level >= l.level) {
82 output.shouldContain(l.message);
83 } else {
84 output.shouldNotContain(l.message);
85 }
86 }
87 }
88
89 public static void main(String[] args) throws Exception {
90 new TestGCLogMessages().testNormalLogs();
91 new TestGCLogMessages().testWithToSpaceExhaustionLogs();
92 }
93
94 private void testNormalLogs() throws Exception {
95
96 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
97 "-Xmx10M",
98 GCTest.class.getName());
99
100 OutputAnalyzer output = new OutputAnalyzer(pb.start());
101 checkMessagesAtLevel(output, messages, 0);
102 output.shouldHaveExitValue(0);
103
104 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
105 "-XX:+UseStringDeduplication",
106 "-Xmx10M",
107 "-XX:+PrintGCDetails",
108 GCTest.class.getName());
109
110 output = new OutputAnalyzer(pb.start());
111 checkMessagesAtLevel(output, messages, 2);
112
113 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
114 "-XX:+UseStringDeduplication",
115 "-Xmx10M",
116 "-XX:+PrintGCDetails",
117 "-XX:+UnlockExperimentalVMOptions",
118 "-XX:G1LogLevel=finest",
119 GCTest.class.getName());
120
121 output = new OutputAnalyzer(pb.start());
122 checkMessagesAtLevel(output, messages, 3);
123 output.shouldHaveExitValue(0);
124 }
125
126 LogMessageWithLevel exhFailureMessages[] = new LogMessageWithLevel[] {
127 new LogMessageWithLevel("Evacuation Failure", 2),
128 new LogMessageWithLevel("Recalculate Used", 3),
129 new LogMessageWithLevel("Remove Self Forwards", 3),
130 new LogMessageWithLevel("Restore RemSet", 3),
131 };
132
133 private void testWithToSpaceExhaustionLogs() throws Exception {
134 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
135 "-Xmx32M",
136 "-Xmn16M",
137 "-XX:+PrintGCDetails",
138 GCTestWithToSpaceExhaustion.class.getName());
139
140 OutputAnalyzer output = new OutputAnalyzer(pb.start());
141 checkMessagesAtLevel(output, exhFailureMessages, 2);
142 output.shouldHaveExitValue(0);
143
144 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
145 "-Xmx32M",
146 "-Xmn16M",
147 "-XX:+PrintGCDetails",
148 "-XX:+UnlockExperimentalVMOptions",
149 "-XX:G1LogLevel=finest",
150 GCTestWithToSpaceExhaustion.class.getName());
151
152 output = new OutputAnalyzer(pb.start());
153 checkMessagesAtLevel(output, exhFailureMessages, 3);
154 output.shouldHaveExitValue(0);
155 }
156
157 static class GCTest {
158 private static byte[] garbage;
159 public static void main(String [] args) {
160 System.out.println("Creating garbage");
161 // create 128MB of garbage. This should result in at least one GC
162 for (int i = 0; i < 1024; i++) {
163 garbage = new byte[128 * 1024];
164 }
165 System.out.println("Done");
166 }
167 }
168
169 static class GCTestWithToSpaceExhaustion {
170 private static byte[] garbage;
171 private static byte[] largeObject;
172 public static void main(String [] args) {
173 largeObject = new byte[16*1024*1024];
|
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 8027962
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
38 private enum Level {
39 OFF, FINER, FINEST;
40 public boolean lessOrEqualTo(Level other) {
41 return this.compareTo(other) < 0;
42 }
43 }
44
45 private class LogMessageWithLevel {
46 String message;
47 Level level;
48
49 public LogMessageWithLevel(String message, Level level) {
50 this.message = message;
51 this.level = level;
52 }
53 };
54
55 private LogMessageWithLevel allLogMessages[] = new LogMessageWithLevel[] {
56 // Ext Root Scan
57 new LogMessageWithLevel("Thread Roots (ms)", Level.FINEST),
58 new LogMessageWithLevel("StringTable Roots (ms)", Level.FINEST),
59 new LogMessageWithLevel("Universe Roots (ms)", Level.FINEST),
60 new LogMessageWithLevel("JNI Handles Roots (ms)", Level.FINEST),
61 new LogMessageWithLevel("ObjectSynchronizer Roots (ms)", Level.FINEST),
62 new LogMessageWithLevel("FlatProfiler Roots", Level.FINEST),
63 new LogMessageWithLevel("Management Roots", Level.FINEST),
64 new LogMessageWithLevel("SystemDictionary Roots", Level.FINEST),
65 new LogMessageWithLevel("CLDG Roots", Level.FINEST),
66 new LogMessageWithLevel("JVMTI Roots", Level.FINEST),
67 new LogMessageWithLevel("CodeCache Roots", Level.FINEST),
68 new LogMessageWithLevel("Filter SATB Roots", Level.FINEST),
69 new LogMessageWithLevel("CM RefProcessor Roots", Level.FINEST),
70 new LogMessageWithLevel("Wait For Strong CLD", Level.FINEST),
71 new LogMessageWithLevel("Weak CLD Roots", Level.FINEST),
72 // Redirty Cards
73 new LogMessageWithLevel("Redirty Cards", Level.FINER),
74 new LogMessageWithLevel("Parallel Redirty", Level.FINEST),
75 new LogMessageWithLevel("Redirtied Cards", Level.FINEST),
76 // Misc Top-level
77 new LogMessageWithLevel("Code Root Purge", Level.FINER),
78 new LogMessageWithLevel("String Dedup Fixup", Level.FINER),
79 // Free CSet
80 new LogMessageWithLevel("Young Free CSet", Level.FINEST),
81 new LogMessageWithLevel("Non-Young Free CSet", Level.FINEST),
82 // Humongous Eager Reclaim
83 new LogMessageWithLevel("Humongous Reclaim", Level.FINER),
84 new LogMessageWithLevel("Humongous Register", Level.FINER),
85 };
86
87 void checkMessagesAtLevel(OutputAnalyzer output, LogMessageWithLevel messages[], Level level) throws Exception {
88 for (LogMessageWithLevel l : messages) {
89 if (level.lessOrEqualTo(l.level)) {
90 output.shouldNotContain(l.message);
91 } else {
92 output.shouldContain(l.message);
93 }
94 }
95 }
96
97 public static void main(String[] args) throws Exception {
98 new TestGCLogMessages().testNormalLogs();
99 new TestGCLogMessages().testWithToSpaceExhaustionLogs();
100 }
101
102 private void testNormalLogs() throws Exception {
103
104 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
105 "-Xmx10M",
106 GCTest.class.getName());
107
108 OutputAnalyzer output = new OutputAnalyzer(pb.start());
109 checkMessagesAtLevel(output, allLogMessages, Level.OFF);
110 output.shouldHaveExitValue(0);
111
112 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
113 "-XX:+UseStringDeduplication",
114 "-Xmx10M",
115 "-XX:+PrintGCDetails",
116 GCTest.class.getName());
117
118 output = new OutputAnalyzer(pb.start());
119 checkMessagesAtLevel(output, allLogMessages, Level.FINER);
120
121 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
122 "-XX:+UseStringDeduplication",
123 "-Xmx10M",
124 "-XX:+PrintGCDetails",
125 "-XX:+UnlockExperimentalVMOptions",
126 "-XX:G1LogLevel=finest",
127 GCTest.class.getName());
128
129 output = new OutputAnalyzer(pb.start());
130 checkMessagesAtLevel(output, allLogMessages, Level.FINEST);
131 output.shouldHaveExitValue(0);
132 }
133
134 LogMessageWithLevel exhFailureMessages[] = new LogMessageWithLevel[] {
135 new LogMessageWithLevel("Evacuation Failure", Level.FINER),
136 new LogMessageWithLevel("Recalculate Used", Level.FINEST),
137 new LogMessageWithLevel("Remove Self Forwards", Level.FINEST),
138 new LogMessageWithLevel("Restore RemSet", Level.FINEST),
139 };
140
141 private void testWithToSpaceExhaustionLogs() throws Exception {
142 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
143 "-Xmx32M",
144 "-Xmn16M",
145 "-XX:+PrintGCDetails",
146 GCTestWithToSpaceExhaustion.class.getName());
147
148 OutputAnalyzer output = new OutputAnalyzer(pb.start());
149 checkMessagesAtLevel(output, exhFailureMessages, Level.FINER);
150 output.shouldHaveExitValue(0);
151
152 pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
153 "-Xmx32M",
154 "-Xmn16M",
155 "-XX:+PrintGCDetails",
156 "-XX:+UnlockExperimentalVMOptions",
157 "-XX:G1LogLevel=finest",
158 GCTestWithToSpaceExhaustion.class.getName());
159
160 output = new OutputAnalyzer(pb.start());
161 checkMessagesAtLevel(output, exhFailureMessages, Level.FINEST);
162 output.shouldHaveExitValue(0);
163 }
164
165 static class GCTest {
166 private static byte[] garbage;
167 public static void main(String [] args) {
168 System.out.println("Creating garbage");
169 // create 128MB of garbage. This should result in at least one GC
170 for (int i = 0; i < 1024; i++) {
171 garbage = new byte[128 * 1024];
172 }
173 System.out.println("Done");
174 }
175 }
176
177 static class GCTestWithToSpaceExhaustion {
178 private static byte[] garbage;
179 private static byte[] largeObject;
180 public static void main(String [] args) {
181 largeObject = new byte[16*1024*1024];
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