7977
|
1 /*
|
|
2 * Copyright (c) 2013, 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 */
|
|
23
|
|
24 /*
|
|
25 * @test
|
|
26 * @key nmt jcmd
|
|
27 * @summary Sanity check the output of NMT
|
|
28 * @library /testlibrary
|
|
29 * @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI SummarySanityCheck.java
|
|
30 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:NativeMemoryTracking=summary -XX:+WhiteBoxAPI SummarySanityCheck
|
|
31 */
|
|
32
|
|
33 import com.oracle.java.testlibrary.*;
|
|
34
|
|
35 import java.util.regex.Matcher;
|
|
36 import java.util.regex.Pattern;
|
|
37 import sun.hotspot.WhiteBox;
|
|
38
|
|
39 public class SummarySanityCheck {
|
|
40
|
|
41 private static String jcmdout;
|
|
42 public static void main(String args[]) throws Exception {
|
|
43 // Grab my own PID
|
|
44 String pid = Integer.toString(ProcessTools.getProcessId());
|
|
45
|
|
46 // Use WB API to ensure that all data has been merged before we continue
|
|
47 if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {
|
|
48 throw new Exception("Call to WB API NMTWaitForDataMerge() failed");
|
|
49 }
|
|
50
|
|
51 ProcessBuilder pb = new ProcessBuilder();
|
|
52
|
|
53 // Run 'jcmd <pid> VM.native_memory summary scale=KB'
|
|
54 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary", "scale=KB"});
|
|
55 OutputAnalyzer output = new OutputAnalyzer(pb.start());
|
|
56
|
|
57 jcmdout = output.getOutput();
|
|
58 // Split by '-' to get the 'groups'
|
|
59 String[] lines = jcmdout.split("\n");
|
|
60
|
|
61 if (lines.length == 0) {
|
|
62 throwTestException("Failed to parse jcmd output");
|
|
63 }
|
|
64
|
|
65 int totalCommitted = 0, totalReserved = 0;
|
|
66 int totalCommittedSum = 0, totalReservedSum = 0;
|
|
67
|
|
68 // Match '- <mtType> (reserved=<reserved>KB, committed=<committed>KB)
|
|
69 Pattern mtTypePattern = Pattern.compile("-\\s+(?<typename>[\\w\\s]+)\\(reserved=(?<reserved>\\d+)KB,\\scommitted=(?<committed>\\d+)KB\\)");
|
|
70 // Match 'Total: reserved=<reserved>KB, committed=<committed>KB'
|
|
71 Pattern totalMemoryPattern = Pattern.compile("Total\\:\\s\\sreserved=(?<reserved>\\d+)KB,\\s\\scommitted=(?<committed>\\d+)KB");
|
|
72
|
|
73 for (int i = 0; i < lines.length; i++) {
|
|
74 if (lines[i].startsWith("Total")) {
|
|
75 Matcher totalMemoryMatcher = totalMemoryPattern.matcher(lines[i]);
|
|
76
|
|
77 if (totalMemoryMatcher.matches() && totalMemoryMatcher.groupCount() == 2) {
|
|
78 totalCommitted = Integer.parseInt(totalMemoryMatcher.group("committed"));
|
|
79 totalReserved = Integer.parseInt(totalMemoryMatcher.group("reserved"));
|
|
80 } else {
|
|
81 throwTestException("Failed to match the expected groups in 'Total' memory part");
|
|
82 }
|
|
83 } else if (lines[i].startsWith("-")) {
|
|
84 Matcher typeMatcher = mtTypePattern.matcher(lines[i]);
|
|
85 if (typeMatcher.matches()) {
|
|
86 int typeCommitted = Integer.parseInt(typeMatcher.group("committed"));
|
|
87 int typeReserved = Integer.parseInt(typeMatcher.group("reserved"));
|
|
88
|
|
89 // Make sure reserved is always less or equals
|
|
90 if (typeCommitted > typeReserved) {
|
|
91 throwTestException("Committed (" + typeCommitted + ") was more than Reserved ("
|
|
92 + typeReserved + ") for mtType: " + typeMatcher.group("typename"));
|
|
93 }
|
|
94
|
|
95 // Add to total and compare them in the end
|
|
96 totalCommittedSum += typeCommitted;
|
|
97 totalReservedSum += typeReserved;
|
|
98 } else {
|
|
99 throwTestException("Failed to match the group on line " + i);
|
|
100 }
|
|
101 }
|
|
102 }
|
|
103
|
|
104 // See if they add up correctly, rounding is a problem so make sure we're within +/- 8KB
|
|
105 int committedDiff = totalCommitted - totalCommittedSum;
|
|
106 if (committedDiff > 8 || committedDiff < -8) {
|
|
107 throwTestException("Total committed (" + totalCommitted + ") did not match the summarized committed (" + totalCommittedSum + ")" );
|
|
108 }
|
|
109
|
|
110 int reservedDiff = totalReserved - totalReservedSum;
|
|
111 if (reservedDiff > 8 || reservedDiff < -8) {
|
|
112 throwTestException("Total reserved (" + totalReserved + ") did not match the summarized reserved (" + totalReservedSum + ")" );
|
|
113 }
|
|
114 }
|
|
115
|
|
116 private static void throwTestException(String reason) throws Exception {
|
|
117 throw new Exception(reason + " . Stdout is :\n" + jcmdout);
|
|
118 }
|
|
119 }
|