--- /dev/null	2018-06-17 23:18:20.806999507 +0800
+++ new/test/jdk/jfr/api/recording/event/TestChunkPeriod.java	2019-01-29 11:02:01.767415250 +0800
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.jfr.api.recording.event;
+
+import java.io.IOException;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.List;
+
+import jdk.jfr.FlightRecorder;
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.testlibrary.Asserts;
+import jdk.testlibrary.jfr.Events;
+import jdk.testlibrary.jfr.SimpleEvent;
+
+/*
+ * @test
+ * @summary Test periodic setting that involves chunks.
+ * @key jfr
+ * @library /lib/testlibrary
+ * @run main/othervm jdk.jfr.api.recording.event.TestChunkPeriod
+ */
+public class TestChunkPeriod {
+
+    // Margin of error is to avoid issues where JFR and
+    // System.currentMillis take the clock differently
+    private static final Duration MARGIN_OF_ERROR = Duration.ofNanos(1_000_000_000); // 1 s
+
+    public static void main(String[] args) throws Throwable {
+        FlightRecorder.addPeriodicEvent(SimpleEvent.class, () -> {
+            SimpleEvent  pe = new SimpleEvent();
+            pe.commit();
+        });
+        testBeginChunk();
+        testEndChunk();
+        testEveryChunk();
+    }
+
+    private static void testBeginChunk() throws IOException {
+        Recording r = new Recording();
+        r.enable(SimpleEvent.class).with("period", "beginChunk");
+        Instant beforeStart = Instant.now().minus(MARGIN_OF_ERROR);
+        r.start();
+        Instant afterStart = Instant.now().plus(MARGIN_OF_ERROR);
+        r.stop();
+        List<RecordedEvent> events = Events.fromRecording(r);
+        Asserts.assertEquals(events.size(), 1, "Expected one event with beginChunk");
+        RecordedEvent event = events.get(0);
+        Asserts.assertGreaterThanOrEqual(event.getStartTime(), beforeStart);
+        Asserts.assertGreaterThanOrEqual(afterStart, event.getStartTime());
+        r.close();
+    }
+
+    private static void testEndChunk() throws IOException {
+        Recording r = new Recording();
+        r.enable(SimpleEvent.class).with("period", "endChunk");
+        r.start();
+        Instant beforeStop = Instant.now().minus(MARGIN_OF_ERROR);
+        r.stop();
+        Instant afterStop =  Instant.now().plus(MARGIN_OF_ERROR);
+        List<RecordedEvent> events = Events.fromRecording(r);
+        Asserts.assertEquals(events.size(), 1, "Expected one event with endChunk");
+        RecordedEvent event = events.get(0);
+        Asserts.assertGreaterThanOrEqual(event.getStartTime(), beforeStop);
+        Asserts.assertGreaterThanOrEqual(afterStop, event.getStartTime());
+        r.close();
+    }
+
+    private static void testEveryChunk() throws IOException {
+        Recording r = new Recording();
+        r.enable(SimpleEvent.class).with("period", "everyChunk");
+        r.start();
+        r.stop();
+        List<RecordedEvent> events = Events.fromRecording(r);
+        Asserts.assertEquals(events.size(), 2, "Expected two events with everyChunk");
+        r.close();
+    }
+}