test/hotspot/jtreg/runtime/containers/docker/TestCPUAwareness.java
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test/hotspot/jtreg/runtime/containers/docker/TestCPUAwareness.java

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  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 /*
  26  * @test
  27  * @summary Test JVM's CPU resource awareness when running inside docker container
  28  * @requires docker.support
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  *          jdk.jartool/sun.tools.jar
  33  * @build Common
  34  * @run driver TestCPUAwareness
  35  */
  36 import java.util.List;

  37 import jdk.test.lib.containers.docker.DockerRunOptions;
  38 import jdk.test.lib.containers.docker.DockerTestUtils;
  39 
  40 
  41 public class TestCPUAwareness {
  42     private static final String imageName = Common.imageName("cpu");
  43     private static final int availableCPUs = Runtime.getRuntime().availableProcessors();
  44 
  45     public static void main(String[] args) throws Exception {
  46         if (!DockerTestUtils.canTestDocker()) {
  47             return;
  48         }
  49 
  50         System.out.println("Test Environment: detected availableCPUs = " + availableCPUs);
  51         DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
  52 
  53         try {
  54             // cpuset, period, shares, expected Active Processor Count
  55             testComboWithCpuSets();
  56 
  57             // cpu shares - it should be safe to use CPU shares exceeding available CPUs
  58             testCpuShares(256, 1);
  59             testCpuShares(2048, 2);




  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 /*
  26  * @test
  27  * @summary Test JVM's CPU resource awareness when running inside docker container
  28  * @requires docker.support
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  *          jdk.jartool/sun.tools.jar

  33  * @run driver TestCPUAwareness
  34  */
  35 import java.util.List;
  36 import jdk.test.lib.containers.docker.Common;
  37 import jdk.test.lib.containers.docker.DockerRunOptions;
  38 import jdk.test.lib.containers.docker.DockerTestUtils;
  39 import jdk.test.lib.containers.cgroup.CPUSetsReader;
  40 
  41 public class TestCPUAwareness {
  42     private static final String imageName = Common.imageName("cpu");
  43     private static final int availableCPUs = Runtime.getRuntime().availableProcessors();
  44 
  45     public static void main(String[] args) throws Exception {
  46         if (!DockerTestUtils.canTestDocker()) {
  47             return;
  48         }
  49 
  50         System.out.println("Test Environment: detected availableCPUs = " + availableCPUs);
  51         DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker");
  52 
  53         try {
  54             // cpuset, period, shares, expected Active Processor Count
  55             testComboWithCpuSets();
  56 
  57             // cpu shares - it should be safe to use CPU shares exceeding available CPUs
  58             testCpuShares(256, 1);
  59             testCpuShares(2048, 2);


test/hotspot/jtreg/runtime/containers/docker/TestCPUAwareness.java
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