| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import sun.jvm.hotspot.HotSpotAgent; |
| import sun.jvm.hotspot.utilities.SystemDictionaryHelper; |
| import sun.jvm.hotspot.debugger.*; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.stream.Collectors; |
| |
| import jdk.test.lib.JDKToolLauncher; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.Utils; |
| import jdk.test.lib.apps.LingeredApp; |
| import jdk.test.lib.Asserts; |
| |
| import java.io.*; |
| import java.util.*; |
| |
| /* |
| * @test |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * @modules jdk.hotspot.agent |
| * @modules jdk.hotspot.agent/sun.jvm.hotspot |
| * @modules jdk.hotspot.agent/sun.jvm.hotspot.utilities |
| * @modules jdk.hotspot.agent/sun.jvm.hotspot.oops |
| * @compile -XDignore.symbol.file=true -Xmodule:jdk.hotspot.agent |
| * -XaddExports:java.base/jdk.internal.misc=jdk.hotspot.agent |
| * -XaddExports:java.management/java.lang.management=jdk.hotspot.agent |
| * TestInstanceKlassSize.java |
| * @run main/othervm TestInstanceKlassSize |
| */ |
| |
| public class TestInstanceKlassSize { |
| |
| private static String getJcmdInstanceKlassSize(OutputAnalyzer output, |
| String instanceKlassName) { |
| for (String s : output.asLines()) { |
| if (s.contains(instanceKlassName)) { |
| String tokens[]; |
| System.out.println(s); |
| tokens = s.split("\\s+"); |
| return tokens[3]; |
| } |
| } |
| return null; |
| } |
| |
| private static OutputAnalyzer jcmd(Long pid, |
| String... toolArgs) throws Exception { |
| ProcessBuilder processBuilder = new ProcessBuilder(); |
| JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jcmd"); |
| launcher.addToolArg(Long.toString(pid)); |
| if (toolArgs != null) { |
| for (String toolArg : toolArgs) { |
| launcher.addToolArg(toolArg); |
| } |
| } |
| |
| processBuilder.command(launcher.getCommand()); |
| System.out.println( |
| processBuilder.command().stream().collect(Collectors.joining(" "))); |
| return ProcessTools.executeProcess(processBuilder); |
| } |
| |
| private static void startMeWithArgs() throws Exception { |
| |
| LingeredApp app = null; |
| OutputAnalyzer output = null; |
| try { |
| List<String> vmArgs = new ArrayList<String>(); |
| vmArgs.add("-XX:+UnlockDiagnosticVMOptions"); |
| vmArgs.add("-XX:+UsePerfData"); |
| vmArgs.addAll(Utils.getVmOptions()); |
| app = LingeredApp.startApp(vmArgs); |
| System.out.println ("Started LingeredApp with pid " + app.getPid()); |
| } catch (Exception ex) { |
| ex.printStackTrace(); |
| throw new RuntimeException(ex); |
| } |
| try { |
| String[] instanceKlassNames = new String[] { |
| " java.lang.Object", |
| " java.util.Vector", |
| " sun.util.PreHashedMap", |
| " java.lang.String", |
| " java.lang.Thread", |
| " java.lang.Byte", |
| }; |
| String[] toolArgs = { |
| "-XX:+UnlockDiagnosticVMOptions", |
| "--add-modules=jdk.hotspot.agent", |
| "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot=ALL-UNNAMED", |
| "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.utilities=ALL-UNNAMED", |
| "--add-exports=jdk.hotspot.agent/sun.jvm.hotspot.oops=ALL-UNNAMED", |
| "TestInstanceKlassSize", |
| Long.toString(app.getPid()) |
| }; |
| |
| OutputAnalyzer jcmdOutput = jcmd( |
| app.getPid(), |
| "GC.class_stats", "VTab,ITab,OopMap,KlassBytes"); |
| ProcessBuilder processBuilder = ProcessTools |
| .createJavaProcessBuilder(toolArgs); |
| output = ProcessTools.executeProcess(processBuilder); |
| System.out.println(output.getOutput()); |
| output.shouldHaveExitValue(0); |
| |
| // Check whether the size matches that which jcmd outputs |
| for (String instanceKlassName : instanceKlassNames) { |
| System.out.println ("Trying to match for" + instanceKlassName); |
| String jcmdInstanceKlassSize = getJcmdInstanceKlassSize( |
| jcmdOutput, |
| instanceKlassName); |
| for (String s : output.asLines()) { |
| if (s.contains(instanceKlassName)) { |
| Asserts.assertTrue( |
| s.contains(jcmdInstanceKlassSize), |
| "The size computed by SA for" + |
| instanceKlassName + " does not match."); |
| } |
| } |
| } |
| } finally { |
| LingeredApp.stopApp(app); |
| } |
| } |
| |
| private static void SAInstanceKlassSize(int pid, |
| String[] SAInstanceKlassNames) { |
| HotSpotAgent agent = new HotSpotAgent(); |
| try { |
| agent.attach(pid); |
| } |
| catch (DebuggerException e) { |
| System.out.println(e.getMessage()); |
| System.err.println("Unable to connect to process ID: " + pid); |
| |
| agent.detach(); |
| e.printStackTrace(); |
| } |
| |
| for (String SAInstanceKlassName : SAInstanceKlassNames) { |
| Long size = SystemDictionaryHelper.findInstanceKlass( |
| SAInstanceKlassName).getSize(); |
| System.out.println("SA: The size of " + SAInstanceKlassName + |
| " is " + size); |
| } |
| agent.detach(); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| |
| if (!Platform.shouldSAAttach()) { |
| System.out.println("SA attach not expected to work - test skipped."); |
| return; |
| } |
| |
| if (args == null || args.length == 0) { |
| System.out.println ("No args run. Starting with args now."); |
| startMeWithArgs(); |
| } else { |
| String[] SAInstanceKlassNames = new String[] { |
| "java.lang.Object", |
| "java.util.Vector", |
| "sun.util.PreHashedMap", |
| "java.lang.String", |
| "java.lang.Thread", |
| "java.lang.Byte" |
| }; |
| SAInstanceKlassSize(Integer.parseInt(args[0]), SAInstanceKlassNames); |
| } |
| } |
| } |
| |