| /* |
| * 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 java.net.DatagramPacket; |
| import java.net.DatagramSocket; |
| import java.net.InetAddress; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| 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; |
| |
| /** |
| * @test |
| * @key jfr |
| * @requires vm.hasJFR |
| * @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 { |
| |
| Recording recording = new Recording(); |
| recording.enable(EventNames.NetworkUtilization).with("period", "endChunk"); |
| recording.start(); |
| |
| DatagramSocket socket = new DatagramSocket(); |
| String msg = "hello!"; |
| byte[] buf = msg.getBytes(); |
| forceEndChunk(); |
| // 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); |
| } |
| forceEndChunk(); |
| socket.close(); |
| // Now there should have been traffic on at least two different |
| // interfaces |
| recording.stop(); |
| |
| Set<String> networkInterfaces = new HashSet<>(); |
| List<RecordedEvent> events = Events.fromRecording(recording); |
| Events.hasEvents(events); |
| for (RecordedEvent event : events) { |
| System.out.println(event); |
| Events.assertField(event, "writeRate").atLeast(0L).atMost(1000L * Integer.MAX_VALUE); |
| Events.assertField(event, "readRate").atLeast(0L).atMost(1000L * Integer.MAX_VALUE); |
| Events.assertField(event, "networkInterface").notNull(); |
| if (event.getLong("writeRate") > 0) { |
| networkInterfaces.add(event.getString("networkInterface")); |
| } |
| } |
| |
| if (Platform.isWindows() || Platform.isSolaris()) { |
| // Windows and Solaris do not track statistics for the loopback |
| // interface |
| Asserts.assertGreaterThanOrEqual(networkInterfaces.size(), 1); |
| } else { |
| Asserts.assertGreaterThanOrEqual(networkInterfaces.size(), 2); |
| } |
| } |
| |
| private static void forceEndChunk() { |
| try(Recording r = new Recording()) { |
| r.start(); |
| r.stop(); |
| } |
| } |
| } |