Mercurial > hg > graal-compiler
view test/gc/arguments/TestUseCompressedOopsErgoTools.java @ 14484:3cdda110bbb5
8035412: Cleanup ClassLoaderData::is_alive
Reviewed-by: coleenp, mgerdin
author | stefank |
---|---|
date | Fri, 21 Feb 2014 10:19:09 +0100 |
parents | 2f426063daea |
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. */ import sun.management.ManagementFactoryHelper; import com.sun.management.HotSpotDiagnosticMXBean; import com.sun.management.VMOption; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.util.ArrayList; import java.util.Arrays; import com.oracle.java.testlibrary.*; import sun.hotspot.WhiteBox; class DetermineMaxHeapForCompressedOops { public static void main(String[] args) throws Exception { WhiteBox wb = WhiteBox.getWhiteBox(); System.out.print(wb.getCompressedOopsMaxHeapSize()); } } class TestUseCompressedOopsErgoTools { private static long getCompressedClassSpaceSize() { HotSpotDiagnosticMXBean diagnostic = ManagementFactoryHelper.getDiagnosticMXBean(); VMOption option = diagnostic.getVMOption("CompressedClassSpaceSize"); return Long.parseLong(option.getValue()); } public static long getMaxHeapForCompressedOops(String[] vmargs) throws Exception { OutputAnalyzer output = runWhiteBoxTest(vmargs, DetermineMaxHeapForCompressedOops.class.getName(), new String[] {}, false); return Long.parseLong(output.getStdout()); } public static boolean is64bitVM() { String val = System.getProperty("sun.arch.data.model"); if (val == null) { throw new RuntimeException("Could not read sun.arch.data.model"); } if (val.equals("64")) { return true; } else if (val.equals("32")) { return false; } throw new RuntimeException("Unexpected value " + val + " of sun.arch.data.model"); } /** * Executes a new VM process with the given class and parameters. * @param vmargs Arguments to the VM to run * @param classname Name of the class to run * @param arguments Arguments to the class * @param useTestDotJavaDotOpts Use test.java.opts as part of the VM argument string * @return The OutputAnalyzer with the results for the invocation. */ public static OutputAnalyzer runWhiteBoxTest(String[] vmargs, String classname, String[] arguments, boolean useTestDotJavaDotOpts) throws Exception { ArrayList<String> finalargs = new ArrayList<String>(); String[] whiteboxOpts = new String[] { "-Xbootclasspath/a:.", "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI", "-cp", System.getProperty("java.class.path"), }; if (useTestDotJavaDotOpts) { // System.getProperty("test.java.opts") is '' if no options is set, // we need to skip such a result String[] externalVMOpts = new String[0]; if (System.getProperty("test.java.opts") != null && System.getProperty("test.java.opts").length() != 0) { externalVMOpts = System.getProperty("test.java.opts").split(" "); } finalargs.addAll(Arrays.asList(externalVMOpts)); } finalargs.addAll(Arrays.asList(vmargs)); finalargs.addAll(Arrays.asList(whiteboxOpts)); finalargs.add(classname); finalargs.addAll(Arrays.asList(arguments)); ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0])); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldHaveExitValue(0); return output; } private static String[] join(String[] part1, String part2) { ArrayList<String> result = new ArrayList<String>(); result.addAll(Arrays.asList(part1)); result.add(part2); return result.toArray(new String[0]); } public static void checkCompressedOopsErgo(String[] gcflags) throws Exception { long maxHeapForCompressedOops = getMaxHeapForCompressedOops(gcflags); checkUseCompressedOops(gcflags, maxHeapForCompressedOops, true); checkUseCompressedOops(gcflags, maxHeapForCompressedOops - 1, true); checkUseCompressedOops(gcflags, maxHeapForCompressedOops + 1, false); // the use of HeapBaseMinAddress should not change the outcome checkUseCompressedOops(join(gcflags, "-XX:HeapBaseMinAddress=32G"), maxHeapForCompressedOops, true); checkUseCompressedOops(join(gcflags, "-XX:HeapBaseMinAddress=32G"), maxHeapForCompressedOops - 1, true); checkUseCompressedOops(join(gcflags, "-XX:HeapBaseMinAddress=32G"), maxHeapForCompressedOops + 1, false); // use a different object alignment maxHeapForCompressedOops = getMaxHeapForCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16")); checkUseCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16"), maxHeapForCompressedOops, true); checkUseCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16"), maxHeapForCompressedOops - 1, true); checkUseCompressedOops(join(gcflags, "-XX:ObjectAlignmentInBytes=16"), maxHeapForCompressedOops + 1, false); // use a different CompressedClassSpaceSize String compressedClassSpaceSizeArg = "-XX:CompressedClassSpaceSize=" + 2 * getCompressedClassSpaceSize(); maxHeapForCompressedOops = getMaxHeapForCompressedOops(join(gcflags, compressedClassSpaceSizeArg)); checkUseCompressedOops(join(gcflags, compressedClassSpaceSizeArg), maxHeapForCompressedOops, true); checkUseCompressedOops(join(gcflags, compressedClassSpaceSizeArg), maxHeapForCompressedOops - 1, true); checkUseCompressedOops(join(gcflags, compressedClassSpaceSizeArg), maxHeapForCompressedOops + 1, false); } private static void checkUseCompressedOops(String[] args, long heapsize, boolean expectUseCompressedOops) throws Exception { ArrayList<String> finalargs = new ArrayList<String>(); finalargs.addAll(Arrays.asList(args)); finalargs.add("-Xmx" + heapsize); finalargs.add("-XX:+PrintFlagsFinal"); finalargs.add("-version"); String output = expectValid(finalargs.toArray(new String[0])); boolean actualUseCompressedOops = getFlagBoolValue(" UseCompressedOops", output); Asserts.assertEQ(expectUseCompressedOops, actualUseCompressedOops); } private static boolean getFlagBoolValue(String flag, String where) { Matcher m = Pattern.compile(flag + "\\s+:?= (true|false)").matcher(where); if (!m.find()) { throw new RuntimeException("Could not find value for flag " + flag + " in output string"); } return m.group(1).equals("true"); } private static String expect(String[] flags, boolean hasWarning, boolean hasError, int errorcode) throws Exception { ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldHaveExitValue(errorcode); return output.getStdout(); } private static String expectValid(String[] flags) throws Exception { return expect(flags, false, false, 0); } }