1 /*
2 * Copyright (c) 2015, 2016, 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 import sun.jvm.hotspot.HotSpotAgent;
25 import sun.jvm.hotspot.utilities.SystemDictionaryHelper;
26 import sun.jvm.hotspot.debugger.*;
27
28 import java.util.ArrayList;
29 import java.util.List;
30 import java.util.stream.Collectors;
31
32 import jdk.test.lib.JDKToolLauncher;
33 import jdk.test.lib.Platform;
34 import jdk.test.lib.ProcessTools;
35 import jdk.test.lib.OutputAnalyzer;
36 import jdk.test.lib.Utils;
37 import jdk.test.lib.apps.LingeredApp;
38 import jdk.test.lib.Asserts;
39
40 import java.io.*;
41 import java.util.*;
42
43 /*
44 * @test
45 * @library /test/lib/share/classes
46 * @library /testlibrary
47 * @build jdk.test.lib.*
48 * @build jdk.test.lib.apps.*
49 * @modules java.base/jdk.internal.misc
50 * @modules jdk.hotspot.agent
51 * @modules jdk.hotspot.agent/sun.jvm.hotspot
52 * @modules jdk.hotspot.agent/sun.jvm.hotspot.utilities
53 * @modules jdk.hotspot.agent/sun.jvm.hotspot.oops
54 * @compile -XDignore.symbol.file=true -Xmodule:jdk.hotspot.agent TestInstanceKlassSize.java
55 * @run main/othervm TestInstanceKlassSize
56 */
57
58 public class TestInstanceKlassSize {
59
60 private static String getJcmdInstanceKlassSize(OutputAnalyzer output,
61 String instanceKlassName) {
62 for (String s : output.asLines()) {
63 if (s.contains(instanceKlassName)) {
64 String tokens[];
65 System.out.println(s);
66 tokens = s.split("\\s+");
67 return tokens[3];
68 }
69 }
70 return null;
71 }
72
73 private static OutputAnalyzer jcmd(Long pid,
74 String... toolArgs) throws Exception {
75 ProcessBuilder processBuilder = new ProcessBuilder();
76 JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jcmd");
77 launcher.addToolArg(Long.toString(pid));
78 if (toolArgs != null) {
79 for (String toolArg : toolArgs) {
80 launcher.addToolArg(toolArg);
81 }
82 }
83
84 processBuilder.command(launcher.getCommand());
85 System.out.println(
86 processBuilder.command().stream().collect(Collectors.joining(" ")));
87 return ProcessTools.executeProcess(processBuilder);
88 }
89
90 private static void startMeWithArgs() throws Exception {
91
92 LingeredApp app = null;
93 OutputAnalyzer output = null;
94 try {
95 List<String> vmArgs = new ArrayList<String>();
96 vmArgs.add("-XX:+UnlockDiagnosticVMOptions");
97 vmArgs.add("-XX:+UsePerfData");
98 vmArgs.addAll(Utils.getVmOptions());
99 app = LingeredApp.startApp(vmArgs);
100 System.out.println ("Started LingeredApp with pid " + app.getPid());
101 } catch (Exception ex) {
102 ex.printStackTrace();
103 throw new RuntimeException(ex);
104 }
105 try {
106 String[] instanceKlassNames = new String[] {
107 " java.lang.Object",
108 " java.util.Vector",
109 " sun.util.PreHashedMap",
110 " java.lang.String",
111 " java.lang.Thread",
112 " java.lang.Byte",
113 };
114 String[] toolArgs = {
115 "-XX:+UnlockDiagnosticVMOptions",
116 "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED",
117 "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.utilities=ALL-UNNAMED",
118 "-XaddExports:jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED",
119 "TestInstanceKlassSize",
120 Long.toString(app.getPid())
121 };
122
123 OutputAnalyzer jcmdOutput = jcmd(
124 app.getPid(),
125 "GC.class_stats", "VTab,ITab,OopMap,KlassBytes");
126 ProcessBuilder processBuilder = ProcessTools
127 .createJavaProcessBuilder(toolArgs);
128 output = ProcessTools.executeProcess(processBuilder);
129 System.out.println(output.getOutput());
130 output.shouldHaveExitValue(0);
131
132 // Check whether the size matches that which jcmd outputs
133 for (String instanceKlassName : instanceKlassNames) {
134 System.out.println ("Trying to match for" + instanceKlassName);
135 String jcmdInstanceKlassSize = getJcmdInstanceKlassSize(
136 jcmdOutput,
137 instanceKlassName);
138 for (String s : output.asLines()) {
139 if (s.contains(instanceKlassName)) {
140 Asserts.assertTrue(
141 s.contains(jcmdInstanceKlassSize),
142 "The size computed by SA for" +
143 instanceKlassName + " does not match.");
144 }
145 }
146 }
147 } finally {
148 LingeredApp.stopApp(app);
149 }
150 }
151
152 private static void SAInstanceKlassSize(int pid,
153 String[] SAInstanceKlassNames) {
154 HotSpotAgent agent = new HotSpotAgent();
155 try {
156 agent.attach(pid);
157 }
158 catch (DebuggerException e) {
159 System.out.println(e.getMessage());
160 System.err.println("Unable to connect to process ID: " + pid);
161
162 agent.detach();
163 e.printStackTrace();
164 }
165
166 for (String SAInstanceKlassName : SAInstanceKlassNames) {
167 Long size = SystemDictionaryHelper.findInstanceKlass(
168 SAInstanceKlassName).getSize();
169 System.out.println("SA: The size of " + SAInstanceKlassName +
170 " is " + size);
171 }
172 agent.detach();
173 }
174
175 public static void main(String[] args) throws Exception {
176
177 if (!Platform.shouldSAAttach()) {
178 System.out.println("SA attach not expected to work - test skipped.");
179 return;
180 }
181
182 if (args == null || args.length == 0) {
183 System.out.println ("No args run. Starting with args now.");
184 startMeWithArgs();
185 } else {
186 String[] SAInstanceKlassNames = new String[] {
187 "java.lang.Object",
188 "java.util.Vector",
189 "sun.util.PreHashedMap",
190 "java.lang.String",
191 "java.lang.Thread",
192 "java.lang.Byte"
193 };
194 SAInstanceKlassSize(Integer.parseInt(args[0]), SAInstanceKlassNames);
195 }
196 }
197 }
198