Sat, 07 Nov 2020 10:30:02 +0800
Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f
1 /*
2 * Copyright (c) 2013, 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 */
24 import java.util.List;
25 import java.lang.management.*;
26 import com.oracle.java.testlibrary.*;
27 import static com.oracle.java.testlibrary.Asserts.*;
29 /* @test TestMetaspaceMemoryPool
30 * @bug 8000754
31 * @summary Tests that a MemoryPoolMXBeans is created for metaspace and that a
32 * MemoryManagerMXBean is created.
33 * @library /testlibrary
34 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops TestMetaspaceMemoryPool
35 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:MaxMetaspaceSize=60m TestMetaspaceMemoryPool
36 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers TestMetaspaceMemoryPool
37 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UseCompressedOops -XX:+UseCompressedClassPointers -XX:CompressedClassSpaceSize=60m TestMetaspaceMemoryPool
38 */
39 public class TestMetaspaceMemoryPool {
40 public static void main(String[] args) {
41 verifyThatMetaspaceMemoryManagerExists();
43 boolean isMetaspaceMaxDefined = InputArguments.containsPrefix("-XX:MaxMetaspaceSize");
44 verifyMemoryPool(getMemoryPool("Metaspace"), isMetaspaceMaxDefined);
46 if (Platform.is64bit()) {
47 if (InputArguments.contains("-XX:+UseCompressedOops")) {
48 MemoryPoolMXBean cksPool = getMemoryPool("Compressed Class Space");
49 verifyMemoryPool(cksPool, true);
50 }
51 }
52 }
54 private static void verifyThatMetaspaceMemoryManagerExists() {
55 List<MemoryManagerMXBean> managers = ManagementFactory.getMemoryManagerMXBeans();
56 for (MemoryManagerMXBean manager : managers) {
57 if (manager.getName().equals("Metaspace Manager")) {
58 return;
59 }
60 }
62 throw new RuntimeException("Expected to find a metaspace memory manager");
63 }
65 private static MemoryPoolMXBean getMemoryPool(String name) {
66 List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans();
67 for (MemoryPoolMXBean pool : pools) {
68 if (pool.getName().equals(name)) {
69 return pool;
70 }
71 }
73 throw new RuntimeException("Expected to find a memory pool with name " + name);
74 }
76 private static void verifyMemoryPool(MemoryPoolMXBean pool, boolean isMaxDefined) {
77 MemoryUsage mu = pool.getUsage();
78 long init = mu.getInit();
79 long used = mu.getUsed();
80 long committed = mu.getCommitted();
81 long max = mu.getMax();
83 assertGTE(init, 0L);
84 assertGTE(used, init);
85 assertGTE(committed, used);
87 if (isMaxDefined) {
88 assertGTE(max, committed);
89 } else {
90 assertEQ(max, -1L);
91 }
92 }
93 }