1 /*
2 * Copyright (c) 2017, 2020, Red Hat, Inc. All rights reserved.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 /*
25 * @test TestPeriodicGC
26 * @summary Test that periodic GC is working
27 * @key gc
28 * @library /testlibrary
29 *
30 * @run driver TestPeriodicGC
31 */
32
33 import java.util.*;
34
35 import com.oracle.java.testlibrary.*;
36
37 public class TestPeriodicGC {
38
39 public static void testWith(String msg, boolean periodic, String... args) throws Exception {
40 String[] cmds = Arrays.copyOf(args, args.length + 2);
41 cmds[args.length] = TestPeriodicGC.class.getName();
42 cmds[args.length + 1] = "test";
43 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds);
44
45 OutputAnalyzer output = new OutputAnalyzer(pb.start());
46 output.shouldHaveExitValue(0);
47 if (periodic && !output.getOutput().contains("Trigger: Time since last GC")) {
48 throw new AssertionError(msg + ": Should have periodic GC in logs");
49 }
50 if (!periodic && output.getOutput().contains("Trigger: Time since last GC")) {
51 throw new AssertionError(msg + ": Should not have periodic GC in logs");
52 }
53 }
54
55 public static void main(String[] args) throws Exception {
56 if (args.length > 0 && args[0].equals("test")) {
57 Thread.sleep(5000); // stay idle
58 return;
59 }
60
61 String[] enabled = new String[] {
62 "adaptive",
63 "compact",
64 "static"
65 };
66
67 for (String h : enabled) {
68 testWith("Zero interval with " + h,
69 false,
70 "-verbose:gc",
71 "-XX:+UnlockDiagnosticVMOptions",
72 "-XX:+UnlockExperimentalVMOptions",
73 "-XX:+UseShenandoahGC",
74 "-XX:ShenandoahGCHeuristics=" + h,
75 "-XX:ShenandoahGuaranteedGCInterval=0"
76 );
77
78 testWith("Short interval with " + h,
79 true,
80 "-verbose:gc",
81 "-XX:+UnlockDiagnosticVMOptions",
82 "-XX:+UnlockExperimentalVMOptions",
83 "-XX:+UseShenandoahGC",
84 "-XX:ShenandoahGCHeuristics=" + h,
85 "-XX:ShenandoahGuaranteedGCInterval=1000"
86 );
87
88 testWith("Long interval with " + h,
89 false,
90 "-verbose:gc",
91 "-XX:+UnlockDiagnosticVMOptions",
92 "-XX:+UnlockExperimentalVMOptions",
93 "-XX:+UseShenandoahGC",
94 "-XX:ShenandoahGCHeuristics=" + h,
95 "-XX:ShenandoahGuaranteedGCInterval=100000" // deliberately too long
96 );
97 }
98
99 testWith("Zero interval with iu mode",
100 false,
101 "-verbose:gc",
102 "-XX:+UnlockDiagnosticVMOptions",
103 "-XX:+UnlockExperimentalVMOptions",
104 "-XX:+UseShenandoahGC",
105 "-XX:ShenandoahGCMode=iu",
106 "-XX:ShenandoahGuaranteedGCInterval=0"
107 );
108
109 testWith("Short interval with iu mode",
110 true,
111 "-verbose:gc",
112 "-XX:+UnlockDiagnosticVMOptions",
113 "-XX:+UnlockExperimentalVMOptions",
114 "-XX:+UseShenandoahGC",
115 "-XX:ShenandoahGCMode=iu",
116 "-XX:ShenandoahGuaranteedGCInterval=1000"
117 );
118
119 testWith("Long interval with iu mode",
120 false,
121 "-verbose:gc",
122 "-XX:+UnlockDiagnosticVMOptions",
123 "-XX:+UnlockExperimentalVMOptions",
124 "-XX:+UseShenandoahGC",
125 "-XX:ShenandoahGCMode=iu",
126 "-XX:ShenandoahGuaranteedGCInterval=100000" // deliberately too long
127 );
128
129 testWith("Short interval with aggressive",
130 false,
131 "-verbose:gc",
132 "-XX:+UnlockDiagnosticVMOptions",
133 "-XX:+UnlockExperimentalVMOptions",
134 "-XX:+UseShenandoahGC",
135 "-XX:ShenandoahGCHeuristics=aggressive",
136 "-XX:ShenandoahGuaranteedGCInterval=1000"
137 );
138
139 testWith("Zero interval with passive",
140 false,
141 "-verbose:gc",
142 "-XX:+UnlockDiagnosticVMOptions",
143 "-XX:+UnlockExperimentalVMOptions",
144 "-XX:+UseShenandoahGC",
145 "-XX:ShenandoahGCMode=passive",
146 "-XX:ShenandoahGuaranteedGCInterval=0"
147 );
148
149 testWith("Short interval with passive",
150 false,
151 "-verbose:gc",
152 "-XX:+UnlockDiagnosticVMOptions",
153 "-XX:+UnlockExperimentalVMOptions",
154 "-XX:+UseShenandoahGC",
155 "-XX:ShenandoahGCMode=passive",
156 "-XX:ShenandoahGuaranteedGCInterval=1000"
157 );
158 }
159
160 }