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view test/runtime/SharedArchiveFile/CdsSameObjectAlignment.java @ 15261:882f4cb7cfcf
Move Stamps to graal.compiler.common.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Tue, 22 Apr 2014 11:51:34 +0200 |
parents | 35b99e7e0af2 |
children |
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/* * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test CdsSameObjectAlignment * @summary Testing CDS (class data sharing) using varying object alignment. * Using same object alignment for each dump/load pair * @library /testlibrary */ import com.oracle.java.testlibrary.*; public class CdsSameObjectAlignment { public static void main(String[] args) throws Exception { String nativeWordSize = System.getProperty("sun.arch.data.model"); if (!Platform.is64bit()) { System.out.println("ObjectAlignmentInBytes for CDS is only " + "supported on 64bit platforms; this plaform is " + nativeWordSize); System.out.println("Skipping the test"); } else { dumpAndLoadSharedArchive(8); dumpAndLoadSharedArchive(16); dumpAndLoadSharedArchive(32); dumpAndLoadSharedArchive(64); } } private static void dumpAndLoadSharedArchive(int objectAlignmentInBytes) throws Exception { String objectAlignmentArg = "-XX:ObjectAlignmentInBytes=" + objectAlignmentInBytes; System.out.println("dumpAndLoadSharedArchive(): objectAlignmentInBytes = " + objectAlignmentInBytes); // create shared archive ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./sample.jsa", "-Xshare:dump", objectAlignmentArg); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldContain("Loading classes to share"); output.shouldHaveExitValue(0); // run using the shared archive pb = ProcessTools.createJavaProcessBuilder( "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./sample.jsa", "-Xshare:on", objectAlignmentArg, "-version"); output = new OutputAnalyzer(pb.start()); try { output.shouldContain("sharing"); output.shouldHaveExitValue(0); } catch (RuntimeException e) { // CDS uses absolute addresses for performance. // It will try to reserve memory at a specific address; // there is a chance such reservation will fail // If it does, it is NOT considered a failure of the feature, // rather a possible expected outcome, though not likely output.shouldContain("Unable to use shared archive"); output.shouldHaveExitValue(1); } } }