--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/runtime/TestNetworkUtilizationEvent.java	Thu Jun 28 15:06:55 2018 +0200
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2018, 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.event.runtime;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.Asserts;
+import jdk.test.lib.Platform;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.Events;
+
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.List;
+import java.util.Map;
+
+import static java.util.stream.Collectors.averagingLong;
+import static java.util.stream.Collectors.groupingBy;
+
+/*
+ * @test
+ * @key jfr
+ * @library /test/lib
+ *
+ * @run main/othervm jdk.jfr.event.runtime.TestNetworkUtilizationEvent
+ */
+public class TestNetworkUtilizationEvent {
+
+    private static final long packetSendCount = 100;
+
+    public static void main(String[] args) throws Throwable {
+        testSimple();
+    }
+
+    static void testSimple() throws Throwable {
+
+        Instant start = Instant.now();
+        Recording recording = new Recording();
+        recording.enable(EventNames.NetworkUtilization);
+        recording.start();
+
+        DatagramSocket socket = new DatagramSocket();
+        String msg = "hello!";
+        byte[] buf = msg.getBytes();
+
+        // Send a few packets both to the loopback address as well to an external
+        DatagramPacket packet = new DatagramPacket(buf, buf.length, InetAddress.getLoopbackAddress(), 12345);
+        for (int i = 0; i < packetSendCount; ++i) {
+            socket.send(packet);
+        }
+        packet = new DatagramPacket(buf, buf.length, InetAddress.getByName("10.0.0.0"), 12345);
+        for (int i = 0; i < packetSendCount; ++i) {
+            socket.send(packet);
+        }
+
+        // Now there should have been traffic on at least two different interfaces
+        recording.stop();
+        Duration runtime = Duration.between(start, Instant.now());
+        List<RecordedEvent> events = Events.fromRecording(recording);
+
+        // Calculate the average write rate for each interface
+        Map<String, Double> writeRates = events.stream()
+                .collect(groupingBy(e -> Events.assertField(e, "networkInterface").getValue(),
+                         averagingLong(e -> Events.assertField(e, "writeRate").getValue())));
+
+        // Our test packets should have generated at least this much traffic per second
+        long expectedTraffic = (buf.length * packetSendCount) / Math.max(1, runtime.toSeconds());
+
+        // Count the number of interfaces that have seen at least our test traffic
+        long interfacesWithTraffic = writeRates.values().stream()
+                .filter(d -> d >= expectedTraffic)
+                .count();
+
+        if (Platform.isWindows() || Platform.isSolaris()) {
+            // Windows and Solaris do not track statistics for the loopback interface
+            Asserts.assertGreaterThanOrEqual(writeRates.size(), 1);
+            Asserts.assertGreaterThanOrEqual(interfacesWithTraffic, Long.valueOf(1));
+        } else {
+            Asserts.assertGreaterThanOrEqual(writeRates.size(), 2);
+            Asserts.assertGreaterThanOrEqual(interfacesWithTraffic, Long.valueOf(2));
+        }
+    }
+}