| /* |
| * Copyright (c) 2018, 2021, 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. |
| */ |
| |
| package gc.arguments; |
| |
| /* |
| * @test TestParallelRefProc |
| * @summary Test defaults processing for -XX:+ParallelRefProcEnabled. |
| * @library /test/lib |
| * @library / |
| * @build sun.hotspot.WhiteBox |
| * @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI gc.arguments.TestParallelRefProc |
| */ |
| |
| import java.util.Arrays; |
| import java.util.ArrayList; |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| |
| import jtreg.SkippedException; |
| import sun.hotspot.gc.GC; |
| |
| public class TestParallelRefProc { |
| |
| public static void main(String args[]) throws Exception { |
| boolean noneGCSupported = true; |
| if (GC.Serial.isSupported()) { |
| noneGCSupported = false; |
| testFlag(new String[] { "-XX:+UseSerialGC" }, false); |
| } |
| if (GC.Parallel.isSupported()) { |
| noneGCSupported = false; |
| testFlag(new String[] { "-XX:+UseParallelGC", "-XX:ParallelGCThreads=1" }, false); |
| testFlag(new String[] { "-XX:+UseParallelGC", "-XX:ParallelGCThreads=2" }, true); |
| testFlag(new String[] { "-XX:+UseParallelGC", "-XX:-ParallelRefProcEnabled", "-XX:ParallelGCThreads=2" }, false); |
| } |
| if (GC.G1.isSupported()) { |
| noneGCSupported = false; |
| testFlag(new String[] { "-XX:+UseG1GC", "-XX:ParallelGCThreads=1" }, false); |
| testFlag(new String[] { "-XX:+UseG1GC", "-XX:ParallelGCThreads=2" }, true); |
| testFlag(new String[] { "-XX:+UseG1GC", "-XX:-ParallelRefProcEnabled", "-XX:ParallelGCThreads=2" }, false); |
| } |
| if (noneGCSupported) { |
| throw new SkippedException("Skipping test because none of Serial/Parallel/G1 is supported."); |
| } |
| } |
| |
| private static final String parallelRefProcEnabledPattern = |
| " *bool +ParallelRefProcEnabled *= *true +\\{product\\}"; |
| |
| private static final String parallelRefProcDisabledPattern = |
| " *bool +ParallelRefProcEnabled *= *false +\\{product\\}"; |
| |
| private static void testFlag(String[] args, boolean expectedTrue) throws Exception { |
| ArrayList<String> result = new ArrayList<String>(); |
| result.addAll(Arrays.asList(args)); |
| result.add("-XX:+PrintFlagsFinal"); |
| result.add("-version"); |
| ProcessBuilder pb = GCArguments.createJavaProcessBuilder(result); |
| |
| OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
| |
| output.shouldHaveExitValue(0); |
| |
| final String expectedPattern = expectedTrue ? parallelRefProcEnabledPattern : parallelRefProcDisabledPattern; |
| |
| String value = output.firstMatch(expectedPattern); |
| if (value == null) { |
| throw new RuntimeException( |
| Arrays.toString(args) + " didn't set ParallelRefProcEnabled to " + expectedTrue + " as expected"); |
| } |
| } |
| } |