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/*
* 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.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import java.util.ArrayList;
import java.util.List;
/* @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: <use-coops> <gc-arg>
if (args.length != 2) {
throw new RuntimeException("wrong number of args: " + args.length);
}
final boolean hasCoops = Platform.is64bit();
final boolean useCoops = Boolean.parseBoolean(args[0]);
final String gcArg = args[1];
if (!hasCoops && useCoops) {
// No need to run this configuration.
System.out.println("Skipping test.");
return;
}
List<String> jvmArgs = new ArrayList<>();
if (hasCoops) {
jvmArgs.add(useCoops ? "-XX:+UseCompressedOops" : "-XX:-UseCompressedOops");
}
jvmArgs.add(gcArg);
jvmArgs.add("-Xmx256m");
jvmArgs.add("-Xlog:gc,gc+metaspace=info");
jvmArgs.add(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);
}
}
}
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