143 lines
5.1 KiB
Java
143 lines
5.1 KiB
Java
/*
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* Copyright (c) 2017, 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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/*
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* @test
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* @summary Test JVM's awareness of cpu sets (cpus and mems)
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* @requires docker.support
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* @requires (os.arch != "s390x")
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* jdk.jartool/sun.tools.jar
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* @build AttemptOOM sun.hotspot.WhiteBox PrintContainerInfo
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* @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
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* @run driver TestCPUSets
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*/
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import java.util.List;
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import jdk.test.lib.containers.docker.Common;
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import jdk.test.lib.containers.docker.DockerRunOptions;
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import jdk.test.lib.containers.docker.DockerTestUtils;
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import jdk.test.lib.containers.cgroup.CPUSetsReader;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.Platform;
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import jdk.test.lib.Utils;
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import jdk.test.lib.process.OutputAnalyzer;
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public class TestCPUSets {
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private static final String imageName = Common.imageName("cpusets");
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public static void main(String[] args) throws Exception {
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if (!DockerTestUtils.canTestDocker()) {
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return;
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}
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Common.prepareWhiteBox();
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DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
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try {
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// Sanity test the cpu sets reader and parser
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CPUSetsReader.test();
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testTheSet("Cpus_allowed_list");
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testTheSet("Mems_allowed_list");
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} finally {
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DockerTestUtils.removeDockerImage(imageName);
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}
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}
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private static void testTheSet(String setType) throws Exception {
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String cpuSetStr = CPUSetsReader.readFromProcStatus(setType);
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if (cpuSetStr == null) {
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System.out.printf("The %s test is skipped %n", setType);
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} else {
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List<Integer> cpuSet = CPUSetsReader.parseCpuSet(cpuSetStr);
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// Test subset of one, full subset, and half of the subset
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testCpuSet(CPUSetsReader.listToString(cpuSet, 1));
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if (cpuSet.size() > 1) {
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testCpuSet(CPUSetsReader.listToString(cpuSet));
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}
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if (cpuSet.size() > 2) {
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testCpuSet(CPUSetsReader.listToString(cpuSet, cpuSet.size()/2 ));
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}
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}
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}
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private static DockerRunOptions commonOpts() {
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DockerRunOptions opts = new DockerRunOptions(imageName, "/jdk/bin/java",
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"PrintContainerInfo");
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opts.addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/");
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opts.addJavaOpts("-Xlog:os+container=trace", "-cp", "/test-classes/");
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Common.addWhiteBoxOpts(opts);
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return opts;
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}
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private static void checkResult(List<String> lines, String lineMarker, String value) {
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boolean lineMarkerFound = false;
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for (String line : lines) {
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if (line.contains(lineMarker)) {
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lineMarkerFound = true;
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String[] parts = line.split(":");
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System.out.println("DEBUG: line = " + line);
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System.out.println("DEBUG: parts.length = " + parts.length);
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Asserts.assertEquals(parts.length, 2);
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String set = parts[1].replaceAll("\\s","");
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String actual = CPUSetsReader.listToString(CPUSetsReader.parseCpuSet(set));
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Asserts.assertEquals(actual, value);
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break;
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}
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}
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Asserts.assertTrue(lineMarkerFound);
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}
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private static void testCpuSet(String value) throws Exception {
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Common.logNewTestCase("cpusets.cpus, value = " + value);
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DockerRunOptions opts = commonOpts();
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opts.addDockerOpts("--cpuset-cpus=" + value);
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List<String> lines = Common.run(opts).asLines();
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checkResult(lines, "cpuset.cpus is:", value);
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}
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private static void testMemSet(String value) throws Exception {
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Common.logNewTestCase("cpusets.mems, value = " + value);
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DockerRunOptions opts = commonOpts();
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opts.addDockerOpts("--cpuset-mems=" + value);
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List<String> lines = Common.run(opts).asLines();
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checkResult(lines, "cpuset.mems is:", value);
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}
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}
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