| /* |
| * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2018, SAP 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 jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.JDKToolFinder; |
| |
| /* |
| * @test |
| * @key metaspace jcmd |
| * @summary Test the VM.metaspace command |
| * @requires vm.gc != "Z" & vm.bits != "32" |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main/othervm -XX:MaxMetaspaceSize=201M -Xmx100M -XX:+UseCompressedOops -XX:+UseCompressedClassPointers PrintMetaspaceDcmd with-compressed-class-space |
| * @run main/othervm -XX:MaxMetaspaceSize=201M -Xmx100M -XX:-UseCompressedOops -XX:-UseCompressedClassPointers PrintMetaspaceDcmd without-compressed-class-space |
| */ |
| /* |
| * @test |
| * @key metaspace jcmd |
| * @summary Test the VM.metaspace command |
| * @requires vm.gc != "Z" & vm.bits == "32" |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main/othervm -XX:MaxMetaspaceSize=201M -Xmx100M PrintMetaspaceDcmd without-compressed-class-space |
| */ |
| |
| public class PrintMetaspaceDcmd { |
| |
| // Run jcmd VM.metaspace against a VM with CompressedClassPointers on. |
| // The report should detail Non-Class and Class portions separately. |
| private static void doTheTest(boolean usesCompressedClassSpace) throws Exception { |
| ProcessBuilder pb = new ProcessBuilder(); |
| OutputAnalyzer output; |
| // Grab my own PID |
| String pid = Long.toString(ProcessTools.getProcessId()); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "basic"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| if (usesCompressedClassSpace) { |
| output.shouldContain("Non-Class:"); |
| output.shouldContain("Class:"); |
| } |
| output.shouldContain("Virtual space:"); |
| output.shouldContain("Chunk freelists:"); |
| output.shouldMatch("MaxMetaspaceSize:.*201.00.*MB"); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| if (usesCompressedClassSpace) { |
| output.shouldContain("Non-Class:"); |
| output.shouldContain("Class:"); |
| } |
| output.shouldContain("Virtual space:"); |
| output.shouldContain("Chunk freelist"); |
| output.shouldContain("Waste"); |
| output.shouldMatch("MaxMetaspaceSize:.*201.00.*MB"); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "show-loaders"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.shouldMatch("CLD.*<bootstrap>"); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "by-chunktype"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.shouldContain("specialized:"); |
| output.shouldContain("small:"); |
| output.shouldContain("medium:"); |
| output.shouldContain("humongous:"); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "vslist"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.shouldContain("Virtual space list"); |
| output.shouldMatch("node.*reserved.*committed.*used.*"); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "vsmap"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.shouldContain("Virtual space map:"); |
| output.shouldContain("HHHHHHHHHHH"); |
| |
| // Test with different scales |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "scale=G"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.shouldMatch("MaxMetaspaceSize:.*0.2.*GB"); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "scale=K"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.shouldMatch("MaxMetaspaceSize:.*205824.00 KB"); |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.metaspace", "scale=1"}); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.shouldMatch("MaxMetaspaceSize:.*210763776 bytes"); |
| } |
| |
| public static void main(String args[]) throws Exception { |
| boolean testForCompressedClassSpace = false; |
| if (args[0].equals("with-compressed-class-space")) { |
| testForCompressedClassSpace = true; |
| } else if (args[0].equals("without-compressed-class-space")) { |
| testForCompressedClassSpace = false; |
| } else { |
| throw new IllegalArgumentException("Invalid argument: " + args[0]); |
| } |
| doTheTest(testForCompressedClassSpace); |
| } |
| } |