--- /dev/null 2018-07-11 14:06:31.000000000 +0530 +++ new/test/runtime/containers/docker/TestCPUSets.java 2018-07-11 14:06:31.000000000 +0530 @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2018, 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. + */ + + +/* + * @test + * @summary Test JVM's awareness of cpu sets (cpus and mems) + * @library /testlibrary /testlibrary/whitebox + * @build AttemptOOM CPUSetsReader sun.hotspot.WhiteBox PrintContainerInfo + * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission + * @run driver TestCPUSets + */ + +import java.util.List; +import com.oracle.java.testlibrary.Common; +import com.oracle.java.testlibrary.DockerRunOptions; +import com.oracle.java.testlibrary.DockerTestUtils; +import com.oracle.java.testlibrary.Asserts; +import com.oracle.java.testlibrary.Platform; +import com.oracle.java.testlibrary.Utils; +import com.oracle.java.testlibrary.OutputAnalyzer; + + +public class TestCPUSets { + private static final String imageName = Common.imageName("cpusets"); + + public static void main(String[] args) throws Exception { + if (!DockerTestUtils.canTestDocker()) { + return; + } + + Common.prepareWhiteBox(); + DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker"); + + try { + // Sanity test the cpu sets reader and parser + CPUSetsReader.test(); + testTheSet("Cpus_allowed_list"); + testTheSet("Mems_allowed_list"); + } finally { + DockerTestUtils.removeDockerImage(imageName); + } + } + + + private static void testTheSet(String setType) throws Exception { + String cpuSetStr = CPUSetsReader.readFromProcStatus(setType); + + if (cpuSetStr == null) { + System.out.printf("The %s test is skipped %n", setType); + } else { + List cpuSet = CPUSetsReader.parseCpuSet(cpuSetStr); + + // Test subset of one, full subset, and half of the subset + testCpuSet(CPUSetsReader.listToString(cpuSet, 1)); + if (cpuSet.size() > 1) { + testCpuSet(CPUSetsReader.listToString(cpuSet)); + } + if (cpuSet.size() > 2) { + testCpuSet(CPUSetsReader.listToString(cpuSet, cpuSet.size()/2 )); + } + } + } + + + private static DockerRunOptions commonOpts() { + DockerRunOptions opts = new DockerRunOptions(imageName, "/jdk/bin/java", + "PrintContainerInfo"); + opts.addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/"); + opts.addJavaOpts("-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintContainerInfo", "-cp", "/test-classes/"); + Common.addWhiteBoxOpts(opts); + return opts; + } + + + private static void checkResult(List lines, String lineMarker, String value) { + boolean lineMarkerFound = false; + + for (String line : lines) { + if (line.contains(lineMarker)) { + lineMarkerFound = true; + String[] parts = line.split(":"); + System.out.println("DEBUG: line = " + line); + System.out.println("DEBUG: parts.length = " + parts.length); + + Asserts.assertEquals(parts.length, 2); + String set = parts[1].replaceAll("\\s",""); + String actual = CPUSetsReader.listToString(CPUSetsReader.parseCpuSet(set)); + Asserts.assertEquals(actual, value); + break; + } + } + Asserts.assertTrue(lineMarkerFound); + } + + + private static void testCpuSet(String value) throws Exception { + Common.logNewTestCase("cpusets.cpus, value = " + value); + + DockerRunOptions opts = commonOpts(); + opts.addDockerOpts("--cpuset-cpus=" + value); + + List lines = Common.run(opts).asLines(); + checkResult(lines, "cpuset.cpus is:", value); + } + + private static void testMemSet(String value) throws Exception { + Common.logNewTestCase("cpusets.mems, value = " + value); + + DockerRunOptions opts = commonOpts(); + opts.addDockerOpts("--cpuset-mems=" + value); + + List lines = Common.run(opts).asLines(); + checkResult(lines, "cpuset.mems is:", value); + } + +}