1 /*
2 * Copyright (c) 2013, 2017, 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 */
25 * @test
26 * @bug 8024927
27 * @summary Testing address of compressed class pointer space as best as possible.
28 * @library /test/lib
29 * @modules java.base/jdk.internal.misc
30 * java.management
31 */
32
33 import jdk.test.lib.Platform;
34 import jdk.test.lib.process.ProcessTools;
35 import jdk.test.lib.process.OutputAnalyzer;
36
37 public class CompressedClassPointers {
38
39 public static void smallHeapTest() throws Exception {
40 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
41 "-XX:+UnlockDiagnosticVMOptions",
42 "-XX:SharedBaseAddress=8g",
43 "-Xmx128m",
44 "-Xlog:gc+metaspace=trace",
45 "-XX:+VerifyBeforeGC", "-version");
46 OutputAnalyzer output = new OutputAnalyzer(pb.start());
47 output.shouldContain("Narrow klass base: 0x0000000000000000");
48 output.shouldHaveExitValue(0);
49 }
50
51 public static void smallHeapTestWith3G() throws Exception {
52 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
53 "-XX:+UnlockDiagnosticVMOptions",
54 "-XX:CompressedClassSpaceSize=3g",
55 "-Xmx128m",
56 "-Xlog:gc+metaspace=trace",
57 "-XX:+VerifyBeforeGC", "-version");
58 OutputAnalyzer output = new OutputAnalyzer(pb.start());
59 output.shouldContain("Narrow klass base: 0x0000000000000000, Narrow klass shift: 3");
60 output.shouldHaveExitValue(0);
61 }
62
63 public static void largeHeapTest() throws Exception {
64 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
65 "-XX:+UnlockDiagnosticVMOptions",
66 "-Xmx30g",
67 "-XX:-UseAOT", // AOT explicitly set klass shift to 3.
68 "-Xlog:gc+metaspace=trace",
69 "-XX:+VerifyBeforeGC", "-version");
70 OutputAnalyzer output = new OutputAnalyzer(pb.start());
71 output.shouldNotContain("Narrow klass base: 0x0000000000000000");
72 output.shouldContain("Narrow klass shift: 0");
73 output.shouldHaveExitValue(0);
74 }
75
76 public static void largePagesTest() throws Exception {
77 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
78 "-XX:+UnlockDiagnosticVMOptions",
79 "-Xmx128m",
80 "-XX:+UseLargePages",
81 "-Xlog:gc+metaspace=trace",
82 "-XX:+VerifyBeforeGC", "-version");
83 OutputAnalyzer output = new OutputAnalyzer(pb.start());
84 output.shouldContain("Narrow klass base:");
85 output.shouldHaveExitValue(0);
86 }
87
88 public static void heapBaseMinAddressTest() throws Exception {
|
1 /*
2 * Copyright (c) 2013, 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 */
25 * @test
26 * @bug 8024927
27 * @summary Testing address of compressed class pointer space as best as possible.
28 * @library /test/lib
29 * @modules java.base/jdk.internal.misc
30 * java.management
31 */
32
33 import jdk.test.lib.Platform;
34 import jdk.test.lib.process.ProcessTools;
35 import jdk.test.lib.process.OutputAnalyzer;
36
37 public class CompressedClassPointers {
38
39 public static void smallHeapTest() throws Exception {
40 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
41 "-XX:+UnlockDiagnosticVMOptions",
42 "-XX:SharedBaseAddress=8g",
43 "-Xmx128m",
44 "-Xlog:gc+metaspace=trace",
45 "-Xshare:off",
46 "-Xlog:cds=trace",
47 "-XX:+VerifyBeforeGC", "-version");
48 OutputAnalyzer output = new OutputAnalyzer(pb.start());
49 output.shouldContain("Narrow klass base: 0x0000000000000000");
50 output.shouldHaveExitValue(0);
51 }
52
53 public static void smallHeapTestWith3G() throws Exception {
54 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
55 "-XX:+UnlockDiagnosticVMOptions",
56 "-XX:CompressedClassSpaceSize=3g",
57 "-Xmx128m",
58 "-Xlog:gc+metaspace=trace",
59 "-Xshare:off",
60 "-Xlog:cds=trace",
61 "-XX:+VerifyBeforeGC", "-version");
62 OutputAnalyzer output = new OutputAnalyzer(pb.start());
63 output.shouldContain("Narrow klass base: 0x0000000000000000, Narrow klass shift: 3");
64 output.shouldHaveExitValue(0);
65 }
66
67 public static void largeHeapTest() throws Exception {
68 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
69 "-XX:+UnlockDiagnosticVMOptions",
70 "-Xmx30g",
71 "-XX:-UseAOT", // AOT explicitly set klass shift to 3.
72 "-Xlog:gc+metaspace=trace",
73 "-Xshare:off",
74 "-Xlog:cds=trace",
75 "-XX:+VerifyBeforeGC", "-version");
76 OutputAnalyzer output = new OutputAnalyzer(pb.start());
77 output.shouldNotContain("Narrow klass base: 0x0000000000000000");
78 output.shouldContain("Narrow klass shift: 0");
79 output.shouldHaveExitValue(0);
80 }
81
82 public static void largePagesTest() throws Exception {
83 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
84 "-XX:+UnlockDiagnosticVMOptions",
85 "-Xmx128m",
86 "-XX:+UseLargePages",
87 "-Xlog:gc+metaspace=trace",
88 "-XX:+VerifyBeforeGC", "-version");
89 OutputAnalyzer output = new OutputAnalyzer(pb.start());
90 output.shouldContain("Narrow klass base:");
91 output.shouldHaveExitValue(0);
92 }
93
94 public static void heapBaseMinAddressTest() throws Exception {
|