--- /dev/null 2018-07-11 14:06:31.000000000 +0530 +++ new/test/runtime/containers/docker/TestMemoryAwareness.java 2018-07-11 14:06:31.000000000 +0530 @@ -0,0 +1,109 @@ +/* + * 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 memory resource awareness when running inside docker container + * @library /testlibrary /testlibrary/whitebox + * @build AttemptOOM sun.hotspot.WhiteBox PrintContainerInfo + * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission + * @run driver TestMemoryAwareness + */ + +import com.oracle.java.testlibrary.Common; +import com.oracle.java.testlibrary.DockerRunOptions; +import com.oracle.java.testlibrary.DockerTestUtils; + + +public class TestMemoryAwareness { + private static final String imageName = Common.imageName("memory"); + + public static void main(String[] args) throws Exception { + if (!DockerTestUtils.canTestDocker()) { + return; + } + + Common.prepareWhiteBox(); + DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker"); + + try { + testMemoryLimit("100m", "104857600"); + testMemoryLimit("500m", "524288000"); + testMemoryLimit("1g", "1073741824"); + testMemoryLimit("4g", "4294967296"); + + testMemorySoftLimit("500m", "524288000"); + testMemorySoftLimit("1g", "1073741824"); + + // Add extra 10 Mb to allocator limit, to be sure to cause OOM + testOOM("256m", 256 + 10); + + } finally { + DockerTestUtils.removeDockerImage(imageName); + } + } + + + private static void testMemoryLimit(String valueToSet, String expectedTraceValue) + throws Exception { + + Common.logNewTestCase("memory limit: " + valueToSet); + + DockerRunOptions opts = Common.newOpts(imageName) + .addDockerOpts("--memory", valueToSet); + + Common.run(opts) + .shouldMatch("Memory Limit is:.*" + expectedTraceValue); + } + + + private static void testMemorySoftLimit(String valueToSet, String expectedTraceValue) + throws Exception { + Common.logNewTestCase("memory soft limit: " + valueToSet); + + DockerRunOptions opts = Common.newOpts(imageName, "PrintContainerInfo"); + Common.addWhiteBoxOpts(opts); + opts.addDockerOpts("--memory-reservation=" + valueToSet); + + Common.run(opts) + .shouldMatch("Memory Soft Limit.*" + expectedTraceValue); + } + + + // provoke OOM inside the container, see how VM reacts + private static void testOOM(String dockerMemLimit, int sizeToAllocInMb) throws Exception { + Common.logNewTestCase("OOM"); + + DockerRunOptions opts = Common.newOpts(imageName, "AttemptOOM") + .addDockerOpts("--memory", dockerMemLimit, "--memory-swap", dockerMemLimit); + opts.classParams.add("" + sizeToAllocInMb); + + DockerTestUtils.dockerRunJava(opts) + .shouldHaveExitValue(1) + .shouldContain("Entering AttemptOOM main") + .shouldNotContain("AttemptOOM allocation successful") + .shouldContain("java.lang.OutOfMemoryError"); + } + +}