|
20488
|
1 /*
|
|
|
2 * Copyright (c) 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 */
|
|
|
23
|
|
|
24 /*
|
|
|
25 * @test SpaceUtilizationCheck
|
|
|
26 * @summary Check if the space utilization for shared spaces is adequate
|
|
|
27 * @library /testlibrary
|
|
|
28 * @run main SpaceUtilizationCheck
|
|
|
29 */
|
|
|
30
|
|
|
31 import com.oracle.java.testlibrary.*;
|
|
|
32
|
|
|
33 import java.util.regex.Pattern;
|
|
|
34 import java.util.regex.Matcher;
|
|
|
35 import java.util.ArrayList;
|
|
|
36 import java.lang.Integer;
|
|
|
37
|
|
|
38 public class SpaceUtilizationCheck {
|
|
|
39 // Minimum allowed utilization value (percent)
|
|
|
40 // The goal is to have this number to be 50% for RO and RW regions
|
|
|
41 // Once that feature is implemented, increase the MIN_UTILIZATION to 50
|
|
|
42 private static final int MIN_UTILIZATION = 30;
|
|
|
43
|
|
|
44 // Only RO and RW regions are considered for this check, since they
|
|
|
45 // currently account for the bulk of the shared space
|
|
|
46 private static final int NUMBER_OF_CHECKED_SHARED_REGIONS = 2;
|
|
|
47
|
|
|
48 public static void main(String[] args) throws Exception {
|
|
|
49 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
|
|
|
50 "-XX:+UnlockDiagnosticVMOptions",
|
|
|
51 "-XX:SharedArchiveFile=./test.jsa",
|
|
|
52 "-Xshare:dump");
|
|
|
53
|
|
|
54 OutputAnalyzer output = new OutputAnalyzer(pb.start());
|
|
|
55 String stdout = output.getStdout();
|
|
|
56 ArrayList<String> utilization = findUtilization(stdout);
|
|
|
57
|
|
|
58 if (utilization.size() != NUMBER_OF_CHECKED_SHARED_REGIONS )
|
|
|
59 throw new RuntimeException("The output format of sharing summary has changed");
|
|
|
60
|
|
|
61 for(String str : utilization) {
|
|
|
62 int value = Integer.parseInt(str);
|
|
|
63 if (value < MIN_UTILIZATION) {
|
|
|
64 System.out.println(stdout);
|
|
|
65 throw new RuntimeException("Utilization for one of the regions" +
|
|
|
66 "is below a threshold of " + MIN_UTILIZATION + "%");
|
|
|
67 }
|
|
|
68 }
|
|
|
69 }
|
|
|
70
|
|
|
71 public static ArrayList<String> findUtilization(String input) {
|
|
|
72 ArrayList<String> regions = filterRegionsOfInterest(input.split("\n"));
|
|
|
73 return filterByPattern(filterByPattern(regions, "bytes \\[.*% used\\]"), "\\d+");
|
|
|
74 }
|
|
|
75
|
|
|
76 private static ArrayList<String> filterByPattern(Iterable<String> input, String pattern) {
|
|
|
77 ArrayList<String> result = new ArrayList<String>();
|
|
|
78 for (String str : input) {
|
|
|
79 Matcher matcher = Pattern.compile(pattern).matcher(str);
|
|
|
80 if (matcher.find()) {
|
|
|
81 result.add(matcher.group());
|
|
|
82 }
|
|
|
83 }
|
|
|
84 return result;
|
|
|
85 }
|
|
|
86
|
|
|
87 private static ArrayList<String> filterRegionsOfInterest(String[] inputLines) {
|
|
|
88 ArrayList<String> result = new ArrayList<String>();
|
|
|
89 for (String str : inputLines) {
|
|
|
90 if (str.contains("ro space:") || str.contains("rw space:")) {
|
|
|
91 result.add(str);
|
|
|
92 }
|
|
|
93 }
|
|
|
94 return result;
|
|
|
95 }
|
|
|
96 }
|
