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Java example source code file (SummarySanityCheck.java)
The SummarySanityCheck.java Java example source code/* * Copyright (c) 2013, 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. */ /* * @test * @key nmt jcmd * @summary Sanity check the output of NMT * @library /testlibrary /testlibrary/whitebox * @build SummarySanityCheck * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+WhiteBoxAPI SummarySanityCheck */ import com.oracle.java.testlibrary.*; import java.util.regex.Matcher; import java.util.regex.Pattern; import sun.hotspot.WhiteBox; public class SummarySanityCheck { private static String jcmdout; public static void main(String args[]) throws Exception { // Grab my own PID String pid = Integer.toString(ProcessTools.getProcessId()); // Use WB API to ensure that all data has been merged before we continue if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) { throw new Exception("Call to WB API NMTWaitForDataMerge() failed"); } ProcessBuilder pb = new ProcessBuilder(); // Run 'jcmd <pid> VM.native_memory summary scale=KB' pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=KB"}); OutputAnalyzer output = new OutputAnalyzer(pb.start()); jcmdout = output.getOutput(); // Split by '-' to get the 'groups' String[] lines = jcmdout.split("\n"); if (lines.length == 0) { throwTestException("Failed to parse jcmd output"); } int totalCommitted = 0, totalReserved = 0; int totalCommittedSum = 0, totalReservedSum = 0; // Match '- <mtType> (reserved= Other Java examples (source code examples)Here is a short list of links related to this Java SummarySanityCheck.java source code file: |
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