test/hotspot/jtreg/runtime/containers/docker/TestMemoryAwareness.java
changeset 47908 d6d00f785f39
child 50545 292a4a87c321
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/containers/docker/TestMemoryAwareness.java	Thu Nov 16 19:01:01 2017 -0800
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2017, 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
+ * @requires docker.support
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ *          java.management
+ *          jdk.jartool/sun.tools.jar
+ * @build Common AttemptOOM sun.hotspot.WhiteBox PrintContainerInfo
+ * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission
+ * @run driver TestMemoryAwareness
+ */
+import jdk.test.lib.containers.docker.DockerRunOptions;
+import jdk.test.lib.containers.docker.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");
+    }
+
+}