jdk8-mips64-public/hotspot: test/runtime/NMT/SummarySanityCheck.java@879c6de913d6 (annotated)

test/runtime/NMT/SummarySanityCheck.java@879c6de913d6 (annotated)

test/runtime/NMT/SummarySanityCheck.java

Sat, 02 Feb 2013 16:34:10 +0100

author: ctornqvi
date: Sat, 02 Feb 2013 16:34:10 +0100
changeset 4518: 879c6de913d6
child 4637: 1b0dc9f87e75
permissions: -rw-r--r--

8005013: Add NMT tests
Summary: Add tests for the Native Memory Tracking feature, includes regression tests for 8005936 and 8004802
Reviewed-by: zgu, coleenp

 /*
  * 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
  * @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI SummarySanityCheck.java
  * @run main/othervm -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=<reserved>KB, committed=<committed>KB)
     Pattern mtTypePattern = Pattern.compile("-\\s+(?<typename>[\\w\\s]+)\\(reserved=(?<reserved>\\d+)KB,\\scommitted=(?<committed>\\d+)KB\\)");
     // Match 'Total: reserved=<reserved>KB, committed=<committed>KB'
     Pattern totalMemoryPattern = Pattern.compile("Total\\:\\s\\sreserved=(?<reserved>\\d+)KB,\\s\\scommitted=(?<committed>\\d+)KB");
     for (int i = 0; i < lines.length; i++) {
       if (lines[i].startsWith("Total")) {
         Matcher totalMemoryMatcher = totalMemoryPattern.matcher(lines[i]);
         if (totalMemoryMatcher.matches() && totalMemoryMatcher.groupCount() == 2) {
           totalCommitted = Integer.parseInt(totalMemoryMatcher.group("committed"));
           totalReserved = Integer.parseInt(totalMemoryMatcher.group("reserved"));
         } else {
           throwTestException("Failed to match the expected groups in 'Total' memory part");
         }
       } else if (lines[i].startsWith("-")) {
         Matcher typeMatcher = mtTypePattern.matcher(lines[i]);
         if (typeMatcher.matches()) {
           int typeCommitted = Integer.parseInt(typeMatcher.group("committed"));
           int typeReserved = Integer.parseInt(typeMatcher.group("reserved"));
           // Make sure reserved is always less or equals
           if (typeCommitted > typeReserved) {
             throwTestException("Committed (" + typeCommitted + ") was more than Reserved ("
                 + typeReserved + ") for mtType: " + typeMatcher.group("typename"));
           }
           // Add to total and compare them in the end
           totalCommittedSum += typeCommitted;
           totalReservedSum += typeReserved;
         } else {
           throwTestException("Failed to match the group on line " + i);
         }
       }
     }
     // See if they add up correctly, rounding is a problem so make sure we're within +/- 8KB
     int committedDiff = totalCommitted - totalCommittedSum;
     if (committedDiff > 8 || committedDiff < -8) {
       throwTestException("Total committed (" + totalCommitted + ") did not match the summarized committed (" + totalCommittedSum + ")" );
     }
     int reservedDiff = totalReserved - totalReservedSum;
     if (reservedDiff > 8 || reservedDiff < -8) {
       throwTestException("Total reserved (" + totalReserved + ") did not match the summarized reserved (" + totalReservedSum + ")" );
     }
   }
   private static void throwTestException(String reason) throws Exception {
       throw new Exception(reason + " . Stdout is :\n" + jcmdout);
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/runtime/NMT/SummarySanityCheck.java@879c6de913d6 (annotated)

test/runtime/NMT/SummarySanityCheck.java