1 /*
2 * Copyright (c) 2013, 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
26 * @bug 8024927
27 * @summary Testing address of compressed class pointer space as best as possible.
28 * @library /testlibrary
29 * @ignore 8055164
30 */
31
32 import com.oracle.java.testlibrary.*;
33
34 public class CompressedClassPointers {
35
36 public static void smallHeapTest() throws Exception {
37 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
38 "-XX:+UnlockDiagnosticVMOptions",
39 "-XX:SharedBaseAddress=8g",
40 "-Xmx128m",
41 "-XX:+PrintCompressedOopsMode",
42 "-XX:+VerifyBeforeGC", "-version");
43 OutputAnalyzer output = new OutputAnalyzer(pb.start());
44 output.shouldContain("Narrow klass base: 0x0000000000000000");
45 output.shouldHaveExitValue(0);
46 }
47
48 public static void smallHeapTestWith3G() throws Exception {
49 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
50 "-XX:+UnlockDiagnosticVMOptions",
51 "-XX:CompressedClassSpaceSize=3g",
52 "-Xmx128m",
53 "-XX:+PrintCompressedOopsMode",
54 "-XX:+VerifyBeforeGC", "-version");
55 OutputAnalyzer output = new OutputAnalyzer(pb.start());
56 output.shouldContain("Narrow klass base: 0x0000000000000000, Narrow klass shift: 3");
57 output.shouldHaveExitValue(0);
58 }
59
60 public static void largeHeapTest() throws Exception {
61 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
62 "-XX:+UnlockDiagnosticVMOptions",
63 "-Xmx30g",
64 "-XX:+PrintCompressedOopsMode",
65 "-XX:+VerifyBeforeGC", "-version");
66 OutputAnalyzer output = new OutputAnalyzer(pb.start());
67 output.shouldNotContain("Narrow klass base: 0x0000000000000000");
68 output.shouldContain("Narrow klass shift: 0");
69 output.shouldHaveExitValue(0);
70 }
71
72 public static void largePagesTest() throws Exception {
73 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
74 "-XX:+UnlockDiagnosticVMOptions",
75 "-Xmx128m",
76 "-XX:+UseLargePages",
77 "-XX:+PrintCompressedOopsMode",
78 "-XX:+VerifyBeforeGC", "-version");
79 OutputAnalyzer output = new OutputAnalyzer(pb.start());
80 output.shouldContain("Narrow klass base:");
81 output.shouldHaveExitValue(0);
82 }
83
84 public static void heapBaseMinAddressTest() throws Exception {
85 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
86 "-XX:HeapBaseMinAddress=1m",
87 "-XX:+UnlockDiagnosticVMOptions",
88 "-XX:+PrintCompressedOopsMode",
89 "-version");
90 OutputAnalyzer output = new OutputAnalyzer(pb.start());
91 output.shouldContain("HeapBaseMinAddress must be at least");
92 output.shouldContain("HotSpot");
93 output.shouldHaveExitValue(0);
94 }
95
96 public static void sharingTest() throws Exception {
97 // Test small heaps
98 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
99 "-XX:+UnlockDiagnosticVMOptions",
100 "-XX:SharedArchiveFile=./sample.jsa",
101 "-Xmx128m",
102 "-XX:SharedBaseAddress=8g",
103 "-XX:+PrintCompressedOopsMode",
104 "-XX:+VerifyBeforeGC",
105 "-Xshare:dump");
106 OutputAnalyzer output = new OutputAnalyzer(pb.start());
107 try {
108 output.shouldContain("Loading classes to share");
109 output.shouldHaveExitValue(0);
110
111 pb = ProcessTools.createJavaProcessBuilder(
112 "-XX:+UnlockDiagnosticVMOptions",
113 "-XX:SharedArchiveFile=./sample.jsa",
114 "-Xmx128m",
115 "-XX:SharedBaseAddress=8g",
116 "-XX:+PrintCompressedOopsMode",
117 "-Xshare:on",
118 "-version");
119 output = new OutputAnalyzer(pb.start());
120 output.shouldContain("sharing");
121 output.shouldHaveExitValue(0);
122
123 } catch (RuntimeException e) {
124 output.shouldContain("Unable to use shared archive");
125 output.shouldHaveExitValue(1);
126 }
127 }
128
129 public static void main(String[] args) throws Exception {
130 if (!Platform.is64bit()) {
131 // Can't test this on 32 bit, just pass
132 System.out.println("Skipping test on 32bit");
133 return;
134 }
135 // Solaris 10 can't mmap compressed oops space without a base
136 if (Platform.isSolaris()) {
137 String name = System.getProperty("os.version");
138 if (name.equals("5.10")) {
139 System.out.println("Skipping test on Solaris 10");
140 return;
141 }
142 }
143 smallHeapTest();
144 smallHeapTestWith3G();
145 largeHeapTest();
146 largePagesTest();
147 heapBaseMinAddressTest();
148 sharingTest();
149 }
150 }