1 /* 2 * Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.openjdk.bench.java.net; 24 25 import org.openjdk.jmh.annotations.Benchmark; 26 import org.openjdk.jmh.annotations.BenchmarkMode; 27 import org.openjdk.jmh.annotations.Mode; 28 import org.openjdk.jmh.annotations.OutputTimeUnit; 29 import org.openjdk.jmh.annotations.Param; 30 import org.openjdk.jmh.annotations.Scope; 31 import org.openjdk.jmh.annotations.Setup; 32 import org.openjdk.jmh.annotations.State; 33 import org.openjdk.jmh.annotations.TearDown; 34 35 import java.io.IOException; 36 import java.net.DatagramPacket; 37 import java.net.DatagramSocket; 38 import java.net.InetAddress; 39 import java.net.SocketException; 40 import java.net.UnknownHostException; 41 import java.util.concurrent.TimeUnit; 42 43 /** 44 * DatagramSocket micros designed to stress UDP performance. 45 */ 46 @BenchmarkMode(Mode.AverageTime) 47 @OutputTimeUnit(TimeUnit.MICROSECONDS) 48 @State(Scope.Thread) 49 public class DatagramSocketTest { 50 51 @Param({"1024", "2048", "4096", "8192", "16384", "32768"}) 52 int size; 53 54 private DatagramSocket socket; 55 private DatagramPacket packet; 56 57 @Setup 58 public void prepare() throws SocketException, UnknownHostException { 59 socket = new DatagramSocket(); 60 61 byte[] buf = new byte[size]; 62 packet = new DatagramPacket(buf, buf.length, InetAddress.getByName("localhost"), 9877); 63 } 64 65 @TearDown 66 public void cleanup() { 67 socket.close(); 68 } 69 70 @Benchmark 71 public void testSend() throws IOException { 72 socket.send(packet); 73 } 74 75 }