1/* 2 * Copyright (c) 2000, 2008, 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 24/* 25 * 26 */ 27 28package bench.rmi; 29 30import bench.Benchmark; 31import java.io.Serializable; 32import java.rmi.Remote; 33import java.rmi.RemoteException; 34import java.rmi.server.UnicastRemoteObject; 35 36/** 37 * Benchmark for testing speed of calls with small object tree parameters and 38 * return values. 39 */ 40public class SmallObjTreeCalls implements Benchmark { 41 42 static class Node implements Serializable { 43 Object parent, left, right; 44 45 Node(Object parent, int depth) { 46 this.parent = parent; 47 if (depth > 0) { 48 left = new Node(this, depth - 1); 49 right = new Node(this, depth - 1); 50 } 51 } 52 } 53 54 interface Server extends Remote { 55 public Node call(Node val) throws RemoteException; 56 } 57 58 static class ServerImpl extends UnicastRemoteObject implements Server { 59 public ServerImpl() throws RemoteException { 60 } 61 62 public Node call(Node val) throws RemoteException { 63 return val; 64 } 65 } 66 67 static class ServerFactory implements BenchServer.RemoteObjectFactory { 68 public Remote create() throws RemoteException { 69 return new ServerImpl(); 70 } 71 } 72 73 /** 74 * Issue calls using trees of small objects as parameters/return values. 75 * Arguments: <tree depth> <# calls> 76 */ 77 public long run(String[] args) throws Exception { 78 int depth = Integer.parseInt(args[0]); 79 int reps = Integer.parseInt(args[1]); 80 BenchServer bsrv = Main.getBenchServer(); 81 Server stub = (Server) bsrv.create(new ServerFactory()); 82 Node node = new Node(null, depth); 83 84 long start = System.currentTimeMillis(); 85 for (int i = 0; i < reps; i++) 86 stub.call(node); 87 long time = System.currentTimeMillis() - start; 88 89 bsrv.unexport(stub, true); 90 return time; 91 } 92} 93