Mercurial > jdk8-mips64-public > hotspot / annotate
test/runtime/SharedArchiveFile/CdsSameObjectAlignment.java@6cbff0651f1a (annotated)
test/runtime/SharedArchiveFile/CdsSameObjectAlignment.java
Mon, 06 Nov 2017 16:51:47 +0800
- author
- aoqi
- date
- Mon, 06 Nov 2017 16:51:47 +0800
- changeset 7997
- 6cbff0651f1a
- parent 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
[Code Reorganization] remove trailing whitespace to pass jcheck test
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test CdsSameObjectAlignment |
| aoqi@0 | 26 | * @summary Testing CDS (class data sharing) using varying object alignment. |
| aoqi@0 | 27 | * Using same object alignment for each dump/load pair |
| aoqi@0 | 28 | * @library /testlibrary |
| aoqi@0 | 29 | */ |
| aoqi@0 | 30 | |
| aoqi@0 | 31 | import com.oracle.java.testlibrary.*; |
| aoqi@0 | 32 | |
| aoqi@0 | 33 | public class CdsSameObjectAlignment { |
| aoqi@0 | 34 | public static void main(String[] args) throws Exception { |
| aoqi@0 | 35 | String nativeWordSize = System.getProperty("sun.arch.data.model"); |
| aoqi@0 | 36 | if (!Platform.is64bit()) { |
| aoqi@0 | 37 | System.out.println("ObjectAlignmentInBytes for CDS is only " + |
| aoqi@0 | 38 | "supported on 64bit platforms; this plaform is " + |
| aoqi@0 | 39 | nativeWordSize); |
| aoqi@0 | 40 | System.out.println("Skipping the test"); |
| aoqi@0 | 41 | } else { |
| aoqi@0 | 42 | dumpAndLoadSharedArchive(8); |
| aoqi@0 | 43 | dumpAndLoadSharedArchive(16); |
| aoqi@0 | 44 | dumpAndLoadSharedArchive(32); |
| aoqi@0 | 45 | dumpAndLoadSharedArchive(64); |
| aoqi@0 | 46 | } |
| aoqi@0 | 47 | } |
| aoqi@0 | 48 | |
| aoqi@0 | 49 | private static void |
| aoqi@0 | 50 | dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception { |
| aoqi@0 | 51 | String objectAlignmentArg = "-XX:ObjectAlignmentInBytes=" |
| aoqi@0 | 52 | + objectAlignmentInBytes; |
| aoqi@0 | 53 | System.out.println("dumpAndLoadSharedArchive(): objectAlignmentInBytes = " |
| aoqi@0 | 54 | + objectAlignmentInBytes); |
| aoqi@0 | 55 | |
| aoqi@0 | 56 | // create shared archive |
| aoqi@0 | 57 | ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| aoqi@0 | 58 | "-XX:+UnlockDiagnosticVMOptions", |
| aoqi@0 | 59 | "-XX:SharedArchiveFile=./sample.jsa", |
| aoqi@0 | 60 | "-Xshare:dump", |
| aoqi@0 | 61 | objectAlignmentArg); |
| aoqi@0 | 62 | |
| aoqi@0 | 63 | OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
| aoqi@0 | 64 | output.shouldContain("Loading classes to share"); |
| aoqi@0 | 65 | output.shouldHaveExitValue(0); |
| aoqi@0 | 66 | |
| aoqi@0 | 67 | |
| aoqi@0 | 68 | // run using the shared archive |
| aoqi@0 | 69 | pb = ProcessTools.createJavaProcessBuilder( |
| aoqi@0 | 70 | "-XX:+UnlockDiagnosticVMOptions", |
| aoqi@0 | 71 | "-XX:SharedArchiveFile=./sample.jsa", |
| aoqi@0 | 72 | "-Xshare:on", |
| aoqi@0 | 73 | objectAlignmentArg, |
| aoqi@0 | 74 | "-version"); |
| aoqi@0 | 75 | |
| aoqi@0 | 76 | output = new OutputAnalyzer(pb.start()); |
| aoqi@0 | 77 | |
| aoqi@0 | 78 | try { |
| aoqi@0 | 79 | output.shouldContain("sharing"); |
| aoqi@0 | 80 | output.shouldHaveExitValue(0); |
| aoqi@0 | 81 | } catch (RuntimeException e) { |
| aoqi@0 | 82 | // CDS uses absolute addresses for performance. |
| aoqi@0 | 83 | // It will try to reserve memory at a specific address; |
| aoqi@0 | 84 | // there is a chance such reservation will fail |
| aoqi@0 | 85 | // If it does, it is NOT considered a failure of the feature, |
| aoqi@0 | 86 | // rather a possible expected outcome, though not likely |
| aoqi@0 | 87 | output.shouldContain("Unable to use shared archive"); |
| aoqi@0 | 88 | output.shouldHaveExitValue(1); |
| aoqi@0 | 89 | } |
| aoqi@0 | 90 | } |
| aoqi@0 | 91 | } |
