Source Code Cross Referenced for SpeedTest.java in  » Net » JGroups-2.4.1-sp3 » org » jgroups » tests » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » JGroups 2.4.1 sp3 » org.jgroups.tests 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        // $Id: SpeedTest.java,v 1.18 2005/05/30 16:15:12 belaban Exp $
002:
003:        package org.jgroups.tests;
004:
005:        import org.jgroups.Channel;
006:        import org.jgroups.JChannel;
007:        import org.jgroups.Message;
008:        import org.jgroups.conf.ConfiguratorFactory;
009:        import org.jgroups.conf.ProtocolStackConfigurator;
010:        import org.jgroups.debug.Debugger;
011:        import org.jgroups.util.ExposedByteArrayOutputStream;
012:        import org.jgroups.util.Util;
013:
014:        import java.io.ByteArrayInputStream;
015:        import java.io.DataInputStream;
016:        import java.io.DataOutputStream;
017:        import java.io.IOException;
018:        import java.net.DatagramPacket;
019:        import java.net.DatagramSocket;
020:        import java.net.InetAddress;
021:        import java.net.MulticastSocket;
022:
023:        /**
024:         * Test time taken for multicasting n local messages (messages sent to self). Uses simple MulticastSocket.
025:         * Note that packets might get dropped if Util.sleep(1) is commented out (on certain systems this has
026:         * to be increased even further). If running with -jg option and Util.sleep() is commented out, there will
027:         * probably be packet loss, which will be repaired (by means of retransmission) by JGroups.
028:         * @author Bela Ban
029:         * @version $Id: SpeedTest.java,v 1.18 2005/05/30 16:15:12 belaban Exp $
030:         */
031:        public class SpeedTest {
032:            static long start, stop;
033:            private static final String LOOPBACK = "LOOPBACK(down_thread=false;up_thread=false)";
034:
035:            public static void main(String[] args) {
036:                DatagramSocket sock = null;
037:                Receiver receiver;
038:                int num_msgs = 1000, num_sent = 0, group_port = 7500, num_yields = 0;
039:                DatagramPacket packet;
040:                InetAddress group_addr = null;
041:                int[][] matrix;
042:                boolean jg = false; // use JGroups channel instead of UDP MulticastSocket
043:                JChannel channel = null;
044:                String group_name = "SpeedTest-Group";
045:                Message send_msg;
046:                boolean debug = false, cummulative = false, busy_sleep = false, yield = false, loopback = false;
047:                Debugger debugger = null;
048:                long sleep_time = 1; // sleep in msecs between msg sends
049:                ExposedByteArrayOutputStream output = new ExposedByteArrayOutputStream(
050:                        64);
051:                String props;
052:
053:                props = "UDP(mcast_addr=224.0.0.36;mcast_port=55566;ip_ttl=32;"
054:                        + "ucast_send_buf_size=32000;ucast_recv_buf_size=64000;"
055:                        + "mcast_send_buf_size=32000;mcast_recv_buf_size=64000):"
056:                        + "PING(timeout=2000;num_initial_members=3):"
057:                        + "MERGE2(min_interval=5000;max_interval=10000):"
058:                        + "FD_SOCK:"
059:                        + "VERIFY_SUSPECT(timeout=1500):"
060:                        + "pbcast.NAKACK(max_xmit_size=8192;gc_lag=50;retransmit_timeout=600,800,1200,2400,4800):"
061:                        + "UNICAST(timeout=1200):"
062:                        + "pbcast.STABLE(desired_avg_gossip=10000):"
063:                        + "FRAG(frag_size=8192;down_thread=false;up_thread=false):"
064:                        + "pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;"
065:                        + "shun=false;print_local_addr=true):"
066:                        + "pbcast.STATE_TRANSFER";
067:                //  "PERF(details=true)";
068:
069:                for (int i = 0; i < args.length; i++) {
070:                    if ("-help".equals(args[i])) {
071:                        help();
072:                        return;
073:                    }
074:                    if ("-jg".equals(args[i])) {
075:                        jg = true;
076:                        continue;
077:                    }
078:                    if ("-loopback".equals(args[i])) {
079:                        loopback = true;
080:                        continue;
081:                    }
082:                    if ("-props".equals(args[i])) {
083:                        props = args[++i];
084:                        continue;
085:                    }
086:                    if ("-debug".equals(args[i])) {
087:                        debug = true;
088:                        continue;
089:                    }
090:                    if ("-cummulative".equals(args[i])) {
091:                        cummulative = true;
092:                        continue;
093:                    }
094:                    if ("-busy_sleep".equals(args[i])) {
095:                        busy_sleep = true;
096:                        continue;
097:                    }
098:                    if ("-yield".equals(args[i])) {
099:                        yield = true;
100:                        num_yields++;
101:                        continue;
102:                    }
103:                    if ("-sleep".equals(args[i])) {
104:                        sleep_time = Long.parseLong(args[++i]);
105:                        continue;
106:                    }
107:                    if ("-num_msgs".equals(args[i])) {
108:                        num_msgs = Integer.parseInt(args[++i]);
109:                        continue;
110:                    }
111:                    help();
112:                    return;
113:                }
114:
115:                System.out.println("jg       = " + jg + "\nloopback = "
116:                        + loopback + "\ndebug    = " + debug + "\nsleep    = "
117:                        + sleep_time + "\nbusy_sleep=" + busy_sleep
118:                        + "\nyield=" + yield + "\nnum_yields=" + num_yields
119:                        + "\nnum_msgs = " + num_msgs + '\n');
120:
121:                try {
122:                    matrix = new int[num_msgs][2];
123:                    for (int i = 0; i < num_msgs; i++) {
124:                        for (int j = 0; j < matrix[i].length; j++)
125:                            matrix[i][j] = 0;
126:                    }
127:
128:                    if (jg) {
129:                        if (loopback) {
130:                            ProtocolStackConfigurator conf = ConfiguratorFactory
131:                                    .getStackConfigurator(props);
132:                            String tmp = conf.getProtocolStackString();
133:                            int index = tmp.indexOf(':');
134:                            props = LOOPBACK + tmp.substring(index);
135:                        }
136:                        channel = new JChannel(props);
137:                        // System.out.println("props:\n" + channel.getProperties());
138:                        channel.connect(group_name);
139:                        if (debug) {
140:                            debugger = new Debugger(channel, cummulative);
141:                            debugger.start();
142:                        }
143:                    } else {
144:                        group_addr = InetAddress.getByName("224.0.0.36");
145:                        sock = new DatagramSocket();
146:                    }
147:
148:                    if (debug) {
149:                        System.out.println("Press key to start");
150:                        System.in.read();
151:                    }
152:                    receiver = new Receiver(group_addr, group_port, channel,
153:                            matrix, jg);
154:                    receiver.start();
155:
156:                    byte[] buf;
157:                    DataOutputStream out;
158:
159:                    start = System.currentTimeMillis();
160:                    for (int i = 0; i < num_msgs; i++) {
161:                        // buf=Util.objectToByteBuffer(new Integer(i));
162:                        output.reset();
163:                        out = new DataOutputStream(output);
164:                        out.writeInt(i);
165:                        out.flush();
166:                        buf = output.getRawBuffer();
167:                        out.close();
168:
169:                        if (jg) {
170:                            send_msg = new Message(null, null, buf, 0,
171:                                    buf.length);
172:                            channel.send(send_msg);
173:                        } else {
174:                            packet = new DatagramPacket(buf, buf.length,
175:                                    group_addr, group_port);
176:                            sock.send(packet);
177:                        }
178:                        num_sent++;
179:                        if (num_sent % 1000 == 0)
180:                            System.out.println("-- sent " + num_sent);
181:
182:                        matrix[i][0] = 1;
183:                        if (yield) {
184:                            for (int k = 0; k < num_yields; k++) {
185:                                Thread.yield();
186:                            }
187:                        } else {
188:                            if (sleep_time > 0) {
189:                                sleep(sleep_time, busy_sleep);
190:                            }
191:                        }
192:                    }
193:                    while (true) {
194:                        System.in.read();
195:                        printMatrix(matrix);
196:                    }
197:                } catch (Exception ex) {
198:                    ex.printStackTrace();
199:                    System.exit(-1);
200:                }
201:            }
202:
203:            /**
204:             * On most UNIX systems, the minimum sleep time is 10-20ms. Even if we specify sleep(1), the thread will
205:             * sleep for at least 10-20ms. On Windows, sleep() seems to be implemented as a busy sleep, that is the
206:             * thread never relinquishes control and therefore the sleep(x) is exactly x ms long.
207:             */
208:            static void sleep(long msecs, boolean busy_sleep) {
209:                if (!busy_sleep) {
210:                    Util.sleep(msecs);
211:                    return;
212:                }
213:
214:                long start = System.currentTimeMillis();
215:                long stop = start + msecs;
216:
217:                while (stop > start) {
218:                    start = System.currentTimeMillis();
219:                }
220:            }
221:
222:            static void printMatrix(int[][] m) {
223:                int tmp = 0;
224:                System.out.print("not sent: ");
225:                for (int i = 0; i < m.length; i++) {
226:                    if (m[i][0] == 0) {
227:                        System.out.print(i + " ");
228:                        tmp++;
229:                    }
230:                }
231:                System.out.println("\ntotal not sent: " + tmp);
232:
233:                tmp = 0;
234:                System.out.print("not received: ");
235:                for (int i = 0; i < m.length; i++) {
236:                    if (m[i][1] == 0) {
237:                        System.out.print(i + " ");
238:                        tmp++;
239:                    }
240:                }
241:                System.out.println("\ntotal not received: " + tmp);
242:                System.out.println("Press CTRL-C to kill this test");
243:            }
244:
245:            static void help() {
246:                System.out
247:                        .println("SpeedTest [-help] [-num_msgs <num>] [-sleep <sleeptime in msecs between messages>] "
248:                                + "[-busy_sleep] [-yield] [-jg] [-loopback] [-props <channel properties>] [-debug] [-cummulative]");
249:                System.out
250:                        .println("Options -props -debug and -cummulative are only valid if -jg is used");
251:            }
252:
253:            static class Receiver implements  Runnable {
254:                Thread t = null;
255:                byte[] buf = new byte[1024];
256:                MulticastSocket sock;
257:                Channel channel;
258:                int num_msgs = 1000;
259:                int[][] matrix = null;
260:                boolean jg = false;
261:
262:                Receiver(InetAddress group_addr, int group_port,
263:                        Channel channel, int[][] matrix, boolean jg)
264:                        throws IOException {
265:                    this .channel = channel;
266:                    this .matrix = matrix;
267:                    this .jg = jg;
268:                    num_msgs = matrix.length;
269:                    if (group_addr != null) {
270:                        sock = new MulticastSocket(group_port);
271:                        sock.joinGroup(group_addr);
272:                    }
273:                }
274:
275:                public void start() {
276:                    if (t == null) {
277:                        t = new Thread(this , "receiver thread");
278:                        t.start();
279:                    }
280:                }
281:
282:                public void run() {
283:                    int num_received = 0;
284:                    int number;
285:                    DatagramPacket packet;
286:                    Object obj;
287:                    long total_time;
288:                    double msgs_per_sec = 0;
289:                    DataInputStream in;
290:
291:                    packet = new DatagramPacket(buf, buf.length);
292:                    while (num_received <= num_msgs) {
293:                        try {
294:                            if (jg) {
295:                                obj = channel.receive(0);
296:                                if (obj instanceof  Message) {
297:                                    // msg=(Message)obj;
298:                                } else {
299:                                    System.out.println("received non-msg: "
300:                                            + obj.getClass());
301:                                    continue;
302:                                }
303:                            } else {
304:                                sock.receive(packet);
305:                            }
306:
307:                            // number=((Integer)Util.objectFromByteBuffer(msg_data)).intValue();
308:                            in = new DataInputStream(new ByteArrayInputStream(
309:                                    buf));
310:                            number = in.readInt();
311:                            matrix[number][1] = 1;
312:                            // System.out.println("-- received " + number);
313:                            num_received++;
314:                            if (num_received % 1000 == 0)
315:                                System.out.println("received " + num_received
316:                                        + " packets");
317:                            if (num_received >= num_msgs)
318:                                break;
319:                        } catch (Exception ex) {
320:                            System.err.println(ex);
321:                        }
322:                    }
323:                    stop = System.currentTimeMillis();
324:                    total_time = stop - start;
325:                    msgs_per_sec = (num_received / (total_time / 1000.0));
326:                    System.out.println("\n** Sending and receiving "
327:                            + num_received + " took " + total_time + " msecs ("
328:                            + msgs_per_sec + " msgs/sec) **");
329:                    System.exit(1);
330:                }
331:            }
332:
333:        }
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