1 /* 2 * Copyright (c) 2019 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 java.io.IOException; 26 import java.net.InetAddress; 27 import java.net.InetSocketAddress; 28 import java.net.StandardProtocolFamily; 29 import java.net.UnixDomainSocketAddress; 30 import java.nio.channels.ClosedChannelException; 31 import java.nio.channels.ServerSocketChannel; 32 import java.nio.channels.SocketChannel; 33 import java.nio.file.*; 34 import java.util.concurrent.TimeUnit; 35 import java.util.concurrent.atomic.AtomicInteger; 36 37 import org.openjdk.jmh.annotations.*; 38 import org.openjdk.jmh.runner.Runner; 39 import org.openjdk.jmh.runner.RunnerException; 40 import org.openjdk.jmh.runner.options.Options; 41 import org.openjdk.jmh.runner.options.OptionsBuilder; 42 43 /** 44 * Measures connection setup times 45 */ 46 @BenchmarkMode(Mode.SingleShotTime) 47 @OutputTimeUnit(TimeUnit.MILLISECONDS) 48 @State(Scope.Thread) 49 public class SocketChannelConnectionSetup { 50 51 private ServerSocketChannel ssc; 52 private SocketChannel s1, s2; 53 54 private static volatile String tempDir; 55 private static final AtomicInteger count = new AtomicInteger(0); 56 private volatile Path socket; 57 58 @Param({"inet", "unix"}) 59 private volatile String family; 60 61 static { 62 try { 63 Path p = Files.createTempDirectory("readWriteTest"); 64 tempDir = p.toString(); 65 } catch (IOException e) { 66 tempDir = null; 67 } 68 } 69 70 private ServerSocketChannel getServerSocketChannel() throws IOException { 71 if (family.equals("inet")) 72 return getInetServerSocketChannel(); 73 else if (family.equals("unix")) 74 return getUnixServerSocketChannel(); 75 throw new InternalError(); 76 } 77 78 79 private ServerSocketChannel getInetServerSocketChannel() throws IOException { 80 InetAddress iaddr = InetAddress.getLoopbackAddress(); 81 return ServerSocketChannel.open().bind(null); 82 } 83 84 private ServerSocketChannel getUnixServerSocketChannel() throws IOException { 85 int next = count.incrementAndGet(); 86 socket = Paths.get(tempDir, Integer.toString(next)); 87 UnixDomainSocketAddress addr = UnixDomainSocketAddress.of(socket); 88 return ServerSocketChannel.open(StandardProtocolFamily.UNIX).bind(addr); 89 } 90 91 @Setup(Level.Trial) 92 public void beforeRun() throws IOException { 93 ssc = getServerSocketChannel(); 94 } 95 96 @TearDown(Level.Trial) 97 public void afterRun() throws IOException, InterruptedException { 98 ssc.close(); 99 if (family.equals("unix")) { 100 Files.delete(socket); 101 Files.delete(Path.of(tempDir)); 102 } 103 } 104 105 @Benchmark 106 @Measurement(iterations = 5, batchSize=200) 107 public void test() throws IOException { 108 s1 = SocketChannel.open(ssc.getLocalAddress()); 109 s2 = ssc.accept(); 110 s1.close(); 111 s2.close(); 112 } 113 114 public static void main(String[] args) throws RunnerException { 115 Options opt = new OptionsBuilder() 116 .include(org.openjdk.bench.java.net.SocketChannelConnectionSetup.class.getSimpleName()) 117 .warmupForks(1) 118 .forks(2) 119 .build(); 120 121 new Runner(opt).run(); 122 123 opt = new OptionsBuilder() 124 .include(org.openjdk.bench.java.net.SocketChannelConnectionSetup.class.getSimpleName()) 125 .jvmArgsPrepend("-Djdk.net.useFastTcpLoopback=true") 126 .warmupForks(1) 127 .forks(2) 128 .build(); 129 130 new Runner(opt).run(); 131 } 132 }