Mercurial > hg > truffle

comparison test/runtime/SharedArchiveFile/CdsSameObjectAlignment.java @ 10971:1e9094165098

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8015324: Create tests for CDS feature Summary: Wrote tests for use of CDS with ObjectAlignmentInBytes CL option Reviewed-by: coleenp, ctornqvi, hseigel Contributed-by: Mikhailo Seledtsov <mikhailo.seledtsov@oracle.com>
author ctornqvi
date Thu, 13 Jun 2013 22:00:06 +0200
parents
children 740e263c80c6
comparison
equal deleted inserted replaced
10970:2bffd20a0fcc 10971:1e9094165098
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 CdsSameObjectAlignment
26 * @summary Testing CDS (class data sharing) using varying object alignment.
27 * Using same object alignment for each dump/load pair
28 * @library /testlibrary
29 */
30
31 import com.oracle.java.testlibrary.*;
32
33 public class CdsSameObjectAlignment {
34 public static void main(String[] args) throws Exception {
35 String nativeWordSize = System.getProperty("sun.arch.data.model");
36 if (!Platform.is64bit()) {
37 System.out.println("ObjectAlignmentInBytes for CDS is only " +
38 "supported on 64bit platforms; this plaform is " +
39 nativeWordSize);
40 System.out.println("Skipping the test");
41 } else {
42 dumpAndLoadSharedArchive(8);
43 dumpAndLoadSharedArchive(16);
44 dumpAndLoadSharedArchive(32);
45 dumpAndLoadSharedArchive(64);
46 }
47 }
48
49 private static void
50 dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception {
51 String objectAlignmentArg = "-XX:ObjectAlignmentInBytes="
52 + objectAlignmentInBytes;
53 System.out.println("dumpAndLoadSharedArchive(): objectAlignmentInBytes = "
54 + objectAlignmentInBytes);
55
56 // create shared archive
57 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
58 "-XX:+UnlockDiagnosticVMOptions",
59 "-XX:SharedArchiveFile=./sample.jsa",
60 "-Xshare:dump",
61 objectAlignmentArg);
62
63 OutputAnalyzer output = new OutputAnalyzer(pb.start());
64 output.shouldContain("Loading classes to share");
65 output.shouldHaveExitValue(0);
66
67
68 // run using the shared archive
69 pb = ProcessTools.createJavaProcessBuilder(
70 "-XX:+UnlockDiagnosticVMOptions",
71 "-XX:SharedArchiveFile=./sample.jsa",
72 "-Xshare:on",
73 objectAlignmentArg,
74 "-version");
75
76 output = new OutputAnalyzer(pb.start());
77
78 try {
79 output.shouldContain("sharing");
80 output.shouldHaveExitValue(0);
81 } catch (RuntimeException e) {
82 // CDS uses absolute addresses for performance.
83 // It will try to reserve memory at a specific address;
84 // there is a chance such reservation will fail
85 // If it does, it is NOT considered a failure of the feature,
86 // rather a possible expected outcome, though not likely
87 output.shouldContain(
88 "Unable to reserve shared space at required address");
89 output.shouldHaveExitValue(1);
90 }
91 }
92 }