Mercurial > hg > truffle
comparison test/runtime/SharedArchiveFile/SpaceUtilizationCheck.java @ 20488:9c8439756c05
8052313: Backport CDS tests from JDK-9 to jdk8_u40
Summary: Copied CDS tests from jdk-9 to jdk8u40
Reviewed-by: ccheung, dholmes
author | mseledtsov |
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date | Fri, 19 Sep 2014 11:12:39 -0400 |
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20487:88467a76a382 | 20488:9c8439756c05 |
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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 } |