diff --git a/test/hotspot/jtreg/gc/metaspace/TestSizeTransitions.java b/test/hotspot/jtreg/gc/metaspace/TestSizeTransitions.java new file mode 100644 index 00000000000..02a720e0d78 --- /dev/null +++ b/test/hotspot/jtreg/gc/metaspace/TestSizeTransitions.java @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2019, Twitter, Inc. + * 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.metaspace; + +import jdk.test.lib.process.ProcessTools; +import jdk.test.lib.process.OutputAnalyzer; + +/* @test TestSizeTransitionsSerial + * @key gc + * @requires vm.gc.Serial + * @summary Tests that the metaspace size transition logging is done correctly. + * @library /test/lib + * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseSerialGC + * @run driver gc.metaspace.TestSizeTransitions true -XX:+UseSerialGC + */ + +/* @test TestSizeTransitionsParallel + * @key gc + * @requires vm.gc.Parallel + * @summary Tests that the metaspace size transition logging is done correctly. + * @library /test/lib + * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseParallelGC + * @run driver gc.metaspace.TestSizeTransitions true -XX:+UseParallelGC + */ + +/* @test TestSizeTransitionsG1 + * @key gc + * @requires vm.gc.G1 + * @summary Tests that the metaspace size transition logging is done correctly. + * @library /test/lib + * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseG1GC + * @run driver gc.metaspace.TestSizeTransitions true -XX:+UseG1GC + */ + +/* @test TestSizeTransitionsCMS + * @key gc + * @requires vm.gc.ConcMarkSweep + * @summary Tests that the metaspace size transition logging is done correctly. + * @library /test/lib + * @run driver gc.metaspace.TestSizeTransitions false -XX:+UseConcMarkSweepGC + * @run driver gc.metaspace.TestSizeTransitions true -XX:+UseConcMarkSweepGC + */ + +public class TestSizeTransitions { + public static class Run { + public static void main(String... args) throws Exception { + System.out.println("Run started."); + + // easiest way to generate a metaspace transition is to ask for a full GC + System.gc(); + + System.out.println("Run finished."); + } + } + + // matches the log tags + // e.g., [0.043s][info][gc] + private static final String LOG_TAGS_REGEX = "(\\[.*\\])+ "; + + // matches a size transition + // e.g., 177K(4864K)->177K(4864K) + private static final String SIZE_TRANSITION_REGEX = "\\d+K\\(\\d+K\\)->\\d+K\\(\\d+K\\)"; + + // matches -coops metaspace size transitions + private static final String NO_COOPS_REGEX = + String.format("^%s.* Metaspace: %s$", + LOG_TAGS_REGEX, + SIZE_TRANSITION_REGEX); + + // matches +coops metaspace size transitions + private static final String COOPS_REGEX = + String.format("^%s.* Metaspace: %s NonClass: %s Class: %s$", + LOG_TAGS_REGEX, + SIZE_TRANSITION_REGEX, + SIZE_TRANSITION_REGEX, + SIZE_TRANSITION_REGEX); + + public static void main(String... args) throws Exception { + // args: + if (args.length != 2) { + throw new RuntimeException("wrong number of args: " + args.length); + } + + final boolean useCoops = Boolean.parseBoolean(args[0]); + final String gcArg = args[1]; + final String[] jvmArgs = { + useCoops ? "-XX:+UseCompressedOops" : "-XX:-UseCompressedOops", + gcArg, + "-Xmx256m", + "-Xlog:gc,gc+metaspace=info", + TestSizeTransitions.Run.class.getName() + }; + + System.out.println("JVM args:"); + for (String a : jvmArgs) { + System.out.println(" " + a); + } + + final ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(jvmArgs); + final OutputAnalyzer output = new OutputAnalyzer(pb.start()); + System.out.println(output.getStdout()); + output.shouldHaveExitValue(0); + + if (useCoops) { + output.stdoutShouldMatch(COOPS_REGEX); + output.stdoutShouldNotMatch(NO_COOPS_REGEX); + } else { + output.stdoutShouldMatch(NO_COOPS_REGEX); + output.stdoutShouldNotMatch(COOPS_REGEX); + } + } +}