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/*
Copyright (c) 2007-2009 FastMQ Inc.
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the Lesser GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Lesser GNU General Public License for more details.
You should have received a copy of the Lesser GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import org.zmq.*;
class remote_lat
{
public static void main (String [] args)
{
if (args.length != 3) {
System.out.println ("usage: remote_lat <connect-to> " +
"<message size> <roundtrip count>");
return;
}
String connectTo = args [0];
int messageSize = Integer.parseInt (args [1]);
int roundtripCount = Integer.parseInt (args [2]);
org.zmq.Context ctx = new org.zmq.Context (1, 1, 0);
org.zmq.Socket s = new org.zmq.Socket (ctx, org.zmq.Socket.REQ);
s.connect (connectTo);
long start = System.currentTimeMillis ();
byte data [] = new byte [messageSize];
for (int i = 0; i != roundtripCount; i ++) {
s.send (data, 0);
data = s.recv (0);
assert (data.length == messageSize);
}
long end = System.currentTimeMillis ();
long elapsed = (end - start) * 1000;
double latency = (double) elapsed / roundtripCount / 2;
System.out.println ("message size: " + messageSize + " [B]");
System.out.println ("roundtrip count: " + roundtripCount);
System.out.println ("mean latency: " + latency + " [us]");
}
}
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