jdk8-mips64-public/hotspot: test/runtime/NMT/SummarySanityCheck.java@4edd7572c235

8054836: [TESTBUG] Test is needed to verify correctness of malloc tracking
Reviewed-by: ctornqvi, lfoltan

     1 /*

     2  * Copyright (c) 2013, 2014, 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 /*

    25  * @test

    26  * @key nmt jcmd

    27  * @summary Sanity check the output of NMT

    28  * @library /testlibrary /testlibrary/whitebox

    29  * @build SummarySanityCheck

    30  * @run main ClassFileInstaller sun.hotspot.WhiteBox

    31  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+WhiteBoxAPI SummarySanityCheck

    32  */

    34 import com.oracle.java.testlibrary.*;

    36 import java.util.regex.Matcher;

    37 import java.util.regex.Pattern;

    38 import sun.hotspot.WhiteBox;

    40 public class SummarySanityCheck {

    42   private static String jcmdout;

    43   public static void main(String args[]) throws Exception {

    44     // Grab my own PID

    45     String pid = Integer.toString(ProcessTools.getProcessId());

    47     ProcessBuilder pb = new ProcessBuilder();

    49     // Run  'jcmd <pid> VM.native_memory summary scale=KB'

    50     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=KB"});

    51     OutputAnalyzer output = new OutputAnalyzer(pb.start());

    53     jcmdout = output.getOutput();

    54     // Split by '-' to get the 'groups'

    55     String[] lines = jcmdout.split("\n");

    57     if (lines.length == 0) {

    58       throwTestException("Failed to parse jcmd output");

    59     }

    61     int totalCommitted = 0, totalReserved = 0;

    62     int totalCommittedSum = 0, totalReservedSum = 0;

    64     // Match '- <mtType> (reserved=<reserved>KB, committed=<committed>KB)

    65     Pattern mtTypePattern = Pattern.compile("-\\s+(?<typename>[\\w\\s]+)\\(reserved=(?<reserved>\\d+)KB,\\scommitted=(?<committed>\\d+)KB\\)");

    66     // Match 'Total: reserved=<reserved>KB, committed=<committed>KB'

    67     Pattern totalMemoryPattern = Pattern.compile("Total\\:\\sreserved=(?<reserved>\\d+)KB,\\scommitted=(?<committed>\\d+)KB");

    69     for (int i = 0; i < lines.length; i++) {

    70       if (lines[i].startsWith("Total")) {

    71         Matcher totalMemoryMatcher = totalMemoryPattern.matcher(lines[i]);

    73         if (totalMemoryMatcher.matches()) {

    74           totalCommitted = Integer.parseInt(totalMemoryMatcher.group("committed"));

    75           totalReserved = Integer.parseInt(totalMemoryMatcher.group("reserved"));

    76         } else {

    77           throwTestException("Failed to match the expected groups in 'Total' memory part");

    78         }

    79       } else if (lines[i].startsWith("-")) {

    80         Matcher typeMatcher = mtTypePattern.matcher(lines[i]);

    81         if (typeMatcher.matches()) {

    82           int typeCommitted = Integer.parseInt(typeMatcher.group("committed"));

    83           int typeReserved = Integer.parseInt(typeMatcher.group("reserved"));

    85           // Make sure reserved is always less or equals

    86           if (typeCommitted > typeReserved) {

    87             throwTestException("Committed (" + typeCommitted + ") was more than Reserved ("

    88                 + typeReserved + ") for mtType: " + typeMatcher.group("typename"));

    89           }

    91           // Add to total and compare them in the end

    92           totalCommittedSum += typeCommitted;

    93           totalReservedSum += typeReserved;

    94         } else {

    95           throwTestException("Failed to match the group on line " + i);

    96         }

    97       }

    98     }

   100     // See if they add up correctly, rounding is a problem so make sure we're within +/- 8KB

   101     int committedDiff = totalCommitted - totalCommittedSum;

   102     if (committedDiff > 8 || committedDiff < -8) {

   103       throwTestException("Total committed (" + totalCommitted + ") did not match the summarized committed (" + totalCommittedSum + ")" );

   104     }

   106     int reservedDiff = totalReserved - totalReservedSum;

   107     if (reservedDiff > 8 || reservedDiff < -8) {

   108       throwTestException("Total reserved (" + totalReserved + ") did not match the summarized reserved (" + totalReservedSum + ")" );

   109     }

   110   }

   112   private static void throwTestException(String reason) throws Exception {

   113       throw new Exception(reason + " . Stdout is :\n" + jcmdout);

   114   }

   115 }

Mercurial > jdk8-mips64-public > hotspot / file revision

test/runtime/NMT/SummarySanityCheck.java@4edd7572c235

test/runtime/NMT/SummarySanityCheck.java