81 lines
3.1 KiB
Java
81 lines
3.1 KiB
Java
/*
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* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package gc.ergonomics;
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/*
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* @test TestInitialGCThreadLogging
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* @bug 8157240
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* @summary Check trace logging of initial GC threads.
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* @key gc
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* @modules java.base/jdk.internal.misc
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* @library /test/lib
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* @build sun.hotspot.WhiteBox
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI gc.ergonomics.TestInitialGCThreadLogging
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*/
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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import jtreg.SkippedException;
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import sun.hotspot.gc.GC;
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public class TestInitialGCThreadLogging {
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public static void main(String[] args) throws Exception {
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boolean noneGCSupported = true;
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if (GC.G1.isSupported()) {
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noneGCSupported = false;
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testInitialGCThreadLogging("UseG1GC", "GC Thread");
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}
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if (GC.Parallel.isSupported()) {
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noneGCSupported = false;
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testInitialGCThreadLogging("UseParallelGC", "GC Thread");
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}
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if (GC.Shenandoah.isSupported()) {
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noneGCSupported = false;
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testInitialGCThreadLogging("UseShenandoahGC", "Shenandoah GC Thread");
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}
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if (noneGCSupported) {
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throw new SkippedException("Skipping test because none of G1/Parallel/Shenandoah is supported.");
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}
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}
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private static void verifyDynamicNumberOfGCThreads(OutputAnalyzer output, String threadName) {
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output.shouldHaveExitValue(0); // test should run succesfully
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output.shouldContain(threadName);
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}
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private static void testInitialGCThreadLogging(String gcFlag, String threadName) throws Exception {
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// UseDynamicNumberOfGCThreads and TraceDynamicGCThreads enabled
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String[] baseArgs = {"-XX:+UnlockExperimentalVMOptions", "-XX:+" + gcFlag, "-Xmx10M", "-XX:+UseDynamicNumberOfGCThreads", "-Xlog:gc+task=trace", "-version"};
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// Base test with gc and +UseDynamicNumberOfGCThreads:
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ProcessBuilder pb_enabled = ProcessTools.createJavaProcessBuilder(baseArgs);
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verifyDynamicNumberOfGCThreads(new OutputAnalyzer(pb_enabled.start()), threadName);
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}
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}
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