changeset 54028:dcaced4cbb83

8219997: [TESTBUG] Create test for JFR events in Docker container: CPU, Memory and Process Info Summary: Start docker with limits on CPU/Mem, verify JFR reports correct data Reviewed-by: egahlin
author mseledtsov
date Thu, 07 Mar 2019 13:20:04 -0800
parents a37939761ff6
children 4ff6c8365b69 e693e12250d3
files test/hotspot/jtreg/runtime/containers/docker/JfrReporter.java test/hotspot/jtreg/runtime/containers/docker/TestJFREvents.java
diffstat 2 files changed, 194 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/containers/docker/JfrReporter.java	Thu Mar 07 13:20:04 2019 -0800
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2019, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+import java.nio.file.Paths;
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.jfr.consumer.RecordingFile;
+
+
+// This class is intended to run inside a container
+public class JfrReporter {
+    public static final String TEST_REPORTED_CORES="TEST_REPORTED_CORES";
+    public static final String TEST_REPORTED_MEMORY="TEST_REPORTED_MEMORY";
+    public static final String TEST_REPORTED_PID="TEST_REPORTED_PID";
+    public static final String TESTCASE_CPU="cpu";
+    public static final String TESTCASE_MEMORY="memory";
+    public static final String TESTCASE_PROCESS="process";
+
+    public static void main(String[] args) throws Exception {
+        String testCase = args[0];
+        System.out.println("Testcase: " + testCase);
+        switch (testCase) {
+        case TESTCASE_CPU:
+            RecordedEvent event = testEvent("jdk.CPUInformation", "cpu.jfr");
+            System.out.println(TEST_REPORTED_CORES + "=" + event.getInt("cores"));
+            break;
+        case TESTCASE_MEMORY:
+            event = testEvent("jdk.PhysicalMemory", "memory.jfr");
+            System.out.println(TEST_REPORTED_MEMORY + "=" + event.getLong("totalSize"));
+            break;
+        case TESTCASE_PROCESS:
+            event = testEvent("jdk.SystemProcess", "process.jfr");
+            System.out.println(TEST_REPORTED_PID + "=" + event.getString("pid"));
+            break;
+        default:
+            throw new IllegalArgumentException("Invalid test case");
+        }
+    }
+
+    private static RecordedEvent testEvent(String event, String recordingPath) throws Exception {
+        System.out.println("========= Testing event: " + event);
+        Recording r = new Recording();
+        r.enable(event);
+        r.setDestination(Paths.get("tmp", recordingPath));
+        r.start();
+        r.stop();
+
+        RecordedEvent recordedEvent = RecordingFile.readAllEvents(r.getDestination()).get(0);
+        System.out.println("RecordedEvent: " + recordedEvent);
+        return recordedEvent;
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/containers/docker/TestJFREvents.java	Thu Mar 07 13:20:04 2019 -0800
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2019, 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 Ensure that certain JFR events return correct results for resource values
+ *          when run inside Docker container, such as available CPU and memory.
+ *          Also make sure that PIDs are based on value provided by container,
+ *          not by the host system.
+ * @requires (docker.support & os.maxMemory >= 2g)
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ *          java.management
+ *          jdk.jartool/sun.tools.jar
+ * @build JfrReporter
+ * @run driver TestJFREvents
+ */
+import jdk.test.lib.containers.docker.Common;
+import jdk.test.lib.containers.docker.DockerRunOptions;
+import jdk.test.lib.containers.docker.DockerTestUtils;
+import jdk.test.lib.Utils;
+
+
+public class TestJFREvents {
+    private static final String imageName = Common.imageName("jfr-events");
+    private static final int availableCPUs = Runtime.getRuntime().availableProcessors();
+
+    public static void main(String[] args) throws Exception {
+        System.out.println("Test Environment: detected availableCPUs = " + availableCPUs);
+        if (!DockerTestUtils.canTestDocker()) {
+            return;
+        }
+
+        DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
+
+        try {
+            // leave one CPU for system and tools, otherwise this test may be unstable
+            int maxNrOfAvailableCpus =  availableCPUs - 1;
+            for (int i=1; i < maxNrOfAvailableCpus; i = i * 2) {
+                testCPUInfo(i, i);
+            }
+
+            long MB = 1024*1024;
+            testMemory("200m", "" + 200*MB);
+            testMemory("500m", "" + 500*MB);
+            testMemory("1g", "" + 1024*MB);
+
+            testProcessInfo();
+
+        } finally {
+            DockerTestUtils.removeDockerImage(imageName);
+        }
+    }
+
+
+    private static void testCPUInfo(int valueToSet, int expectedValue) throws Exception {
+        Common.logNewTestCase("CPUInfo: --cpus = " + valueToSet);
+        DockerTestUtils.dockerRunJava(
+                                      commonDockerOpts()
+                                      .addDockerOpts("--cpus=" + valueToSet)
+                                      .addClassOptions(JfrReporter.TESTCASE_CPU))
+            .shouldHaveExitValue(0)
+            .shouldContain(JfrReporter.TEST_REPORTED_CORES);
+
+        // The following assertion is currently disabled due to JFR reporting incorrect values.
+        // JFR reports values for the host system as opposed to values for the container.
+        // @ignore 8219999
+        // .shouldContain(JfrReporter.TEST_REPORTED_CORES + "=" + expectedValue);
+    }
+
+
+    private static void testMemory(String valueToSet, String expectedValue) throws Exception {
+        Common.logNewTestCase("Memory: --memory = " + valueToSet);
+        DockerTestUtils.dockerRunJava(
+                                      commonDockerOpts()
+                                      .addDockerOpts("--memory=" + valueToSet)
+                                      .addClassOptions(JfrReporter.TESTCASE_MEMORY))
+            .shouldHaveExitValue(0)
+            .shouldContain(JfrReporter.TEST_REPORTED_MEMORY + "=" + expectedValue);
+    }
+
+
+    private static void testProcessInfo() throws Exception {
+        Common.logNewTestCase("ProcessInfo");
+        DockerTestUtils.dockerRunJava(
+                                      commonDockerOpts()
+                                      .addClassOptions(JfrReporter.TESTCASE_PROCESS))
+            .shouldHaveExitValue(0)
+            .shouldContain(JfrReporter.TEST_REPORTED_PID + "=1");
+
+    }
+
+
+    private static DockerRunOptions commonDockerOpts() {
+        return new DockerRunOptions(imageName, "/jdk/bin/java", "JfrReporter")
+            .addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/")
+            .addJavaOpts("-cp", "/test-classes/");
+    }
+}