Mercurial > hg > truffle
view test/gc/arguments/TestMaxNewSize.java @ 13815:9a8e4dfae480
avoid profile pathology in CompressedOopTest
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Wed, 29 Jan 2014 14:05:05 -0800 |
parents | 8f07aa079343 |
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 TestMaxNewSize * @key gc * @bug 7057939 * @summary Make sure that MaxNewSize always has a useful value after argument * processing. * @library /testlibrary * @build TestMaxNewSize * @run main TestMaxNewSize -XX:+UseSerialGC * @run main TestMaxNewSize -XX:+UseParallelGC * @run main TestMaxNewSize -XX:+UseConcMarkSweepGC * @run main TestMaxNewSize -XX:+UseG1GC * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com */ import java.util.regex.Matcher; import java.util.regex.Pattern; import java.math.BigInteger; import java.util.ArrayList; import java.util.Arrays; import com.oracle.java.testlibrary.*; public class TestMaxNewSize { private static void checkMaxNewSize(String[] flags, int heapsize) throws Exception { BigInteger actual = new BigInteger(getMaxNewSize(flags)); System.out.println(actual); if (actual.compareTo(new BigInteger((new Long(heapsize)).toString())) == 1) { throw new RuntimeException("MaxNewSize value set to \"" + actual + "\", expected otherwise when running with the following flags: " + Arrays.asList(flags).toString()); } } private static void checkIncompatibleNewSize(String[] flags) throws Exception { ArrayList<String> finalargs = new ArrayList<String>(); finalargs.addAll(Arrays.asList(flags)); finalargs.add("-version"); ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0])); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldContain("Initial young gen size set larger than the maximum young gen size"); } private static boolean isRunningG1(String[] args) { for (int i = 0; i < args.length; i++) { if (args[i].contains("+UseG1GC")) { return true; } } return false; } private static String getMaxNewSize(String[] flags) throws Exception { ArrayList<String> finalargs = new ArrayList<String>(); finalargs.addAll(Arrays.asList(flags)); if (isRunningG1(flags)) { finalargs.add("-XX:G1HeapRegionSize=1M"); } finalargs.add("-XX:+PrintFlagsFinal"); finalargs.add("-version"); ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(finalargs.toArray(new String[0])); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldHaveExitValue(0); String stdout = output.getStdout(); //System.out.println(stdout); return getFlagValue("MaxNewSize", stdout); } private static String getFlagValue(String flag, String where) { Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where); if (!m.find()) { throw new RuntimeException("Could not find value for flag " + flag + " in output string"); } String match = m.group(); return match.substring(match.lastIndexOf(" ") + 1, match.length()); } public static void main(String args[]) throws Exception { String gcName = args[0]; final int M32 = 32 * 1024 * 1024; final int M64 = 64 * 1024 * 1024; final int M96 = 96 * 1024 * 1024; final int M128 = 128 * 1024 * 1024; checkMaxNewSize(new String[] { gcName, "-Xmx128M" }, M128); checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=5" }, M128); checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M" }, M128); checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:OldSize=96M" }, M128); checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:MaxNewSize=32M" }, M32); checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewSize=32M", "-XX:MaxNewSize=32M" }, M32); checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-XX:NewRatio=6", "-XX:MaxNewSize=32M" }, M32); checkMaxNewSize(new String[] { gcName, "-Xmx128M", "-Xms96M" }, M128); checkMaxNewSize(new String[] { gcName, "-Xmx96M", "-Xms96M" }, M96); checkMaxNewSize(new String[] { gcName, "-XX:NewSize=128M", "-XX:MaxNewSize=50M"}, M128); } }