1 /*
   2  * Copyright (c) 2019, Red Hat Inc.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.test.lib.containers.cgroup;
  27 
  28 import java.util.Objects;
  29 
  30 import jdk.internal.platform.Metrics;
  31 
  32 /**
  33  * Cgroup version agnostic metrics tester
  34  *
  35  */
  36 public class MetricsTester {
  37 
  38     private static final String CGROUP_V1 = "cgroupv1";
  39     private static final String CGROUP_V2 = "cgroupv2";
  40 
  41     private static CgroupMetricsTester createInstance(Metrics m) {
  42         Objects.requireNonNull(m);
  43         if (CGROUP_V1.equals(m.getProvider())) {
  44             MetricsTesterCgroupV1 t = new MetricsTesterCgroupV1();
  45             t.setup();
  46             return t;
  47         } else if (CGROUP_V2.equals(m.getProvider())) {
  48             return new MetricsTesterCgroupV2();
  49         } else {
  50             System.err.println("WARNING: Metrics provider, '" + m.getProvider()
  51                                                               + "' is unknown!");
  52             return null;
  53         }
  54     }
  55 
  56     public void testAll(Metrics m) throws Exception {
  57         CgroupMetricsTester tester =  createInstance(m);
  58         tester.testCpuAccounting();
  59         tester.testCpuConsumption();
  60         tester.testCpuSchedulingMetrics();
  61         tester.testCpuSets();
  62         tester.testMemorySubsystem();
  63         tester.testMemoryUsage();
  64         tester.testMisc();
  65     }
  66 
  67     public static void main(String[] args) throws Exception {
  68         Metrics m = Metrics.systemMetrics();
  69         // If cgroups is not configured, report success
  70         if (m == null) {
  71             System.out.println("TEST PASSED!!!");
  72             return;
  73         }
  74 
  75         MetricsTester metricsTester = new MetricsTester();
  76         metricsTester.testAll(m);
  77         System.out.println("TEST PASSED!!!");
  78     }
  79 }