package org.jgroups.tests;
import org.jgroups.*;
import org.jgroups.protocols.PERF_TP;
import org.jgroups.stack.Protocol;
import java.io.*;
import java.util.Vector;
import java.util.LinkedList;
import java.util.List;
import java.util.Iterator;
/**
* Test of PERF_TP. Requirement: transport needs to be PERF_TP
* @author Bela Ban Feb 24, 2004
* @version $Id: PerfTpTest.java,v 1.8 2005/04/18 13:55:35 belaban Exp $
*/
public class PerfTpTest {
JChannel ch=null;
PERF_TP tp=null;
DataInputStream in=null;
DataOutputStream out=null;
public static void main(String[] args) {
String props=null;
int num_msgs=1000;
int size=1000; // bytes
String file_name=null;
boolean write=true;
for(int i=0; i < args.length; i++) {
if("-props".equals(args[i])){
props=args[++i];
continue;
}
if("-num".equals(args[i])) {
num_msgs=Integer.parseInt(args[++i]);
continue;
}
if("-size".equals(args[i])) {
size=Integer.parseInt(args[++i]);
continue;
}
if("-file_name".equals(args[i])) {
file_name=args[++i];
continue;
}
if("-write".equals(args[i])) {
write=true;
continue;
}
if("-read".equals(args[i])) {
write=false;
continue;
}
help();
return;
}
try {
new PerfTpTest().start(props, num_msgs, size, file_name, write);
}
catch(Exception e) {
e.printStackTrace();
}
}
private static void help() {
System.out.println("PerfTpTest [-help] [-props <properties>] [-num <num msgs>] " +
"[-size <msg size (in bytes)] [-file_name <filename>] [-write] [-read]");
}
void start(String props, int num_msgs, int size, String file_name, boolean write) throws Exception {
Message msg;
Protocol transport;
byte[] buf=new byte[size];
Address local_addr;
View view;
if(file_name != null) {
if(write)
out=new DataOutputStream(new FileOutputStream(file_name));
else
in=new DataInputStream(new FileInputStream(file_name));
}
ch=new JChannel(props);
ch.connect("demo");
tp=PERF_TP.getInstance();
local_addr=ch.getLocalAddress();
Vector members=new Vector();
members.add(local_addr);
view=new View(local_addr, 0, members);
ch.down(new Event(Event.BECOME_SERVER));
ch.down(new Event(Event.VIEW_CHANGE, view));
if(write) {
tp.setExpectedMessages(num_msgs);
for(int i=0; i < num_msgs; i++) {
msg=new Message(null, local_addr, buf);
ch.send(msg);
if(out != null)
msg.writeTo(out);
if(i % 1000 == 0)
System.out.println("sent " + i + " messages");
}
}
else {
List msgs=new LinkedList();
Vector protocols=ch.getProtocolStack().getProtocols();
transport=(Protocol)protocols.lastElement();
int i=0;
while(true) {
msg=new Message();
try {
msg.readFrom(in);
msgs.add(msg);
}
catch(EOFException eof) {
break;
}
}
num_msgs=msgs.size();
System.out.println("read " + num_msgs + " msgs from file");
tp.setExpectedMessages(msgs.size()); // this starts the time
for(Iterator it=msgs.iterator(); it.hasNext();) {
msg=(Message)it.next();
i++;
transport.up(new Event(Event.MSG, msg));
if(i % 10000 == 0) {
System.out.println("passed up " + i + " messages");
}
}
}
synchronized(tp) {
if(tp.done()) {
;
}
else {
tp.wait();
}
}
long total=tp.getTotalTime();
double msgs_per_ms=num_msgs / (double)total;
double msgs_per_sec=msgs_per_ms * 1000;
double time_per_msg=total / (double)num_msgs;
double usec_per_msg=time_per_msg * 1000;
System.out.println("num_msgs = " + num_msgs + ", total_time = " + total + "ms");
System.out.println("msgs/millisec = " + msgs_per_ms + ", msgs/sec = " + msgs_per_sec +
"\ntime/msg = " + time_per_msg + " ms" +
" (" + usec_per_msg + " usec/msg)");
ch.close();
}
}