diff options
Diffstat (limited to 'perf/java/remote_lat.java')
-rw-r--r-- | perf/java/remote_lat.java | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/perf/java/remote_lat.java b/perf/java/remote_lat.java new file mode 100644 index 0000000..28b2f76 --- /dev/null +++ b/perf/java/remote_lat.java @@ -0,0 +1,60 @@ +/* + 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); + + 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]"); + } +} + |