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 package jdk.jfr.event.gc.detailed;
  26 
  27 import java.nio.file.Paths;
  28 import java.time.Duration;
  29 import java.util.List;
  30 
  31 import jdk.jfr.Recording;
  32 import jdk.jfr.consumer.RecordedEvent;
  33 import jdk.test.lib.Asserts;
  34 import jdk.test.lib.jfr.EventNames;
  35 import jdk.test.lib.jfr.Events;
  36 import jdk.test.lib.jfr.GCHelper;
  37 
  38 /*
  39  * @test
  40  * @bug 8149650

  41  * @requires vm.gc == "G1" | vm.gc == null
  42  * @key jfr
  43  * @library /test/lib /test/jdk
  44  * @run main/othervm -XX:NewSize=2m -XX:MaxNewSize=2m -Xmx32m -XX:G1HeapRegionSize=1m -XX:+UseG1GC jdk.jfr.event.gc.detailed.TestG1HeapRegionTypeChangeEvent
  45  */
  46 
  47 public class TestG1HeapRegionTypeChangeEvent {
  48     private final static String EVENT_NAME = EventNames.G1HeapRegionTypeChange;
  49 
  50     public static void main(String[] args) throws Exception {
  51         Recording recording = null;
  52         try {
  53             recording = new Recording();
  54             // activate the event we are interested in and start recording
  55             recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
  56             recording.start();
  57 
  58             // Setting NewSize and MaxNewSize will limit eden, so
  59             // allocating 1024 20k byte arrays should trigger at
  60             // least a few Young GCs.

  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 package jdk.jfr.event.gc.detailed;
  26 
  27 import java.nio.file.Paths;
  28 import java.time.Duration;
  29 import java.util.List;
  30 
  31 import jdk.jfr.Recording;
  32 import jdk.jfr.consumer.RecordedEvent;
  33 import jdk.test.lib.Asserts;
  34 import jdk.test.lib.jfr.EventNames;
  35 import jdk.test.lib.jfr.Events;
  36 import jdk.test.lib.jfr.GCHelper;
  37 
  38 /**
  39  * @test
  40  * @bug 8149650
  41  * @requires vm.hasJFR
  42  * @requires vm.gc == "G1" | vm.gc == null
  43  * @key jfr
  44  * @library /test/lib /test/jdk
  45  * @run main/othervm -XX:NewSize=2m -XX:MaxNewSize=2m -Xmx32m -XX:G1HeapRegionSize=1m -XX:+UseG1GC jdk.jfr.event.gc.detailed.TestG1HeapRegionTypeChangeEvent
  46  */
  47 
  48 public class TestG1HeapRegionTypeChangeEvent {
  49     private final static String EVENT_NAME = EventNames.G1HeapRegionTypeChange;
  50 
  51     public static void main(String[] args) throws Exception {
  52         Recording recording = null;
  53         try {
  54             recording = new Recording();
  55             // activate the event we are interested in and start recording
  56             recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));
  57             recording.start();
  58 
  59             // Setting NewSize and MaxNewSize will limit eden, so
  60             // allocating 1024 20k byte arrays should trigger at
  61             // least a few Young GCs.