1 /*
   2  * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
   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.jfr.event.gc.detailed;
  27 
  28 import java.io.File;
  29 import java.nio.file.Paths;
  30 import java.util.List;
  31 
  32 import jdk.jfr.consumer.RecordedEvent;
  33 import jdk.jfr.consumer.RecordingFile;
  34 import jdk.test.lib.Asserts;
  35 import jdk.test.lib.jfr.Events;
  36 
  37 /**
  38  * @test
  39  * @key jfr
  40  * @requires vm.hasJFR
  41  *
  42  * @library /test/lib /test/jdk
  43  * @requires vm.gc == "G1" | vm.gc == null
  44  *
  45  * @run main jdk.jfr.event.gc.detailed.TestEvacuationFailedEvent
  46  */
  47 public class TestEvacuationFailedEvent {
  48 
  49     private final static String EVENT_SETTINGS_FILE = System.getProperty("test.src", ".") + File.separator + "evacuationfailed-testsettings.jfc";
  50     private final static String JFR_FILE = "TestEvacuationFailedEvent.jfr";
  51     private final static int BYTES_TO_ALLOCATE = 1024 * 512;
  52 
  53     public static void main(String[] args) throws Exception {
  54         String[] vmFlags = {"-XX:+UnlockExperimentalVMOptions", "-XX:-UseFastUnorderedTimeStamps",
  55             "-Xmx64m", "-Xmn60m", "-XX:-UseDynamicNumberOfGCThreads", "-XX:ParallelGCThreads=3",
  56             "-XX:MaxTenuringThreshold=0", "-Xlog:gc*=debug", "-XX:+UseG1GC"};
  57 
  58         if (!ExecuteOOMApp.execute(EVENT_SETTINGS_FILE, JFR_FILE, vmFlags, BYTES_TO_ALLOCATE)) {
  59             System.out.println("OOM happened in the other thread(not test thread). Skip test.");
  60             // Skip test, process terminates due to the OOME error in the different thread
  61             return;
  62         }
  63 
  64         List<RecordedEvent> events = RecordingFile.readAllEvents(Paths.get(JFR_FILE));
  65 
  66         Events.hasEvents(events);
  67         for (RecordedEvent event : events) {
  68             long objectCount = Events.assertField(event, "evacuationFailed.objectCount").atLeast(1L).getValue();
  69             long smallestSize = Events.assertField(event, "evacuationFailed.smallestSize").atLeast(1L).getValue();
  70             long firstSize = Events.assertField(event, "evacuationFailed.firstSize").atLeast(smallestSize).getValue();
  71             long totalSize = Events.assertField(event, "evacuationFailed.totalSize").atLeast(firstSize).getValue();
  72             Asserts.assertLessThanOrEqual(smallestSize * objectCount, totalSize, "smallestSize * objectCount <= totalSize");
  73         }
  74     }
  75 }