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13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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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  *
41  *
42  * @library /lib /
43  *
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 
main(String[] args)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", "-verbose:gc", "-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 }
76