1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/runtime/NMT/SummarySanityCheck.java Sat Feb 02 16:34:10 2013 +0100
1.3 @@ -0,0 +1,119 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @key nmt jcmd
1.30 + * @summary Sanity check the output of NMT
1.31 + * @library /testlibrary
1.32 + * @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI SummarySanityCheck.java
1.33 + * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+WhiteBoxAPI SummarySanityCheck
1.34 + */
1.35 +
1.36 +import com.oracle.java.testlibrary.*;
1.37 +
1.38 +import java.util.regex.Matcher;
1.39 +import java.util.regex.Pattern;
1.40 +import sun.hotspot.WhiteBox;
1.41 +
1.42 +public class SummarySanityCheck {
1.43 +
1.44 + private static String jcmdout;
1.45 + public static void main(String args[]) throws Exception {
1.46 + // Grab my own PID
1.47 + String pid = Integer.toString(ProcessTools.getProcessId());
1.48 +
1.49 + // Use WB API to ensure that all data has been merged before we continue
1.50 + if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {
1.51 + throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
1.52 + }
1.53 +
1.54 + ProcessBuilder pb = new ProcessBuilder();
1.55 +
1.56 + // Run 'jcmd <pid> VM.native_memory summary scale=KB'
1.57 + pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=KB"});
1.58 + OutputAnalyzer output = new OutputAnalyzer(pb.start());
1.59 +
1.60 + jcmdout = output.getOutput();
1.61 + // Split by '-' to get the 'groups'
1.62 + String[] lines = jcmdout.split("\n");
1.63 +
1.64 + if (lines.length == 0) {
1.65 + throwTestException("Failed to parse jcmd output");
1.66 + }
1.67 +
1.68 + int totalCommitted = 0, totalReserved = 0;
1.69 + int totalCommittedSum = 0, totalReservedSum = 0;
1.70 +
1.71 + // Match '- <mtType> (reserved=<reserved>KB, committed=<committed>KB)
1.72 + Pattern mtTypePattern = Pattern.compile("-\\s+(?<typename>[\\w\\s]+)\\(reserved=(?<reserved>\\d+)KB,\\scommitted=(?<committed>\\d+)KB\\)");
1.73 + // Match 'Total: reserved=<reserved>KB, committed=<committed>KB'
1.74 + Pattern totalMemoryPattern = Pattern.compile("Total\\:\\s\\sreserved=(?<reserved>\\d+)KB,\\s\\scommitted=(?<committed>\\d+)KB");
1.75 +
1.76 + for (int i = 0; i < lines.length; i++) {
1.77 + if (lines[i].startsWith("Total")) {
1.78 + Matcher totalMemoryMatcher = totalMemoryPattern.matcher(lines[i]);
1.79 +
1.80 + if (totalMemoryMatcher.matches() && totalMemoryMatcher.groupCount() == 2) {
1.81 + totalCommitted = Integer.parseInt(totalMemoryMatcher.group("committed"));
1.82 + totalReserved = Integer.parseInt(totalMemoryMatcher.group("reserved"));
1.83 + } else {
1.84 + throwTestException("Failed to match the expected groups in 'Total' memory part");
1.85 + }
1.86 + } else if (lines[i].startsWith("-")) {
1.87 + Matcher typeMatcher = mtTypePattern.matcher(lines[i]);
1.88 + if (typeMatcher.matches()) {
1.89 + int typeCommitted = Integer.parseInt(typeMatcher.group("committed"));
1.90 + int typeReserved = Integer.parseInt(typeMatcher.group("reserved"));
1.91 +
1.92 + // Make sure reserved is always less or equals
1.93 + if (typeCommitted > typeReserved) {
1.94 + throwTestException("Committed (" + typeCommitted + ") was more than Reserved ("
1.95 + + typeReserved + ") for mtType: " + typeMatcher.group("typename"));
1.96 + }
1.97 +
1.98 + // Add to total and compare them in the end
1.99 + totalCommittedSum += typeCommitted;
1.100 + totalReservedSum += typeReserved;
1.101 + } else {
1.102 + throwTestException("Failed to match the group on line " + i);
1.103 + }
1.104 + }
1.105 + }
1.106 +
1.107 + // See if they add up correctly, rounding is a problem so make sure we're within +/- 8KB
1.108 + int committedDiff = totalCommitted - totalCommittedSum;
1.109 + if (committedDiff > 8 || committedDiff < -8) {
1.110 + throwTestException("Total committed (" + totalCommitted + ") did not match the summarized committed (" + totalCommittedSum + ")" );
1.111 + }
1.112 +
1.113 + int reservedDiff = totalReserved - totalReservedSum;
1.114 + if (reservedDiff > 8 || reservedDiff < -8) {
1.115 + throwTestException("Total reserved (" + totalReserved + ") did not match the summarized reserved (" + totalReservedSum + ")" );
1.116 + }
1.117 + }
1.118 +
1.119 + private static void throwTestException(String reason) throws Exception {
1.120 + throw new Exception(reason + " . Stdout is :\n" + jcmdout);
1.121 + }
1.122 +}
