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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 sys
from datetime import datetime
import libpyzmq
def main ():
if len(sys.argv) != 4:
print 'usage: remote_lat <connect-to> <message-size> <roundtrip-count>'
sys.exit (1)
try:
connect_to = sys.argv [1]
message_size = int (sys.argv [2])
roundtrip_count = int (sys.argv [3])
except (ValueError, OverflowError), e:
print 'message-size and message-count must be integers'
sys.exit (1)
ctx = libpyzmq.Context (1, 1);
s = libpyzmq.Socket (ctx, libpyzmq.REQ)
s.connect (connect_to)
msg = ''.join ([' ' for n in range (0, message_size)])
start = datetime.now ()
for i in range (0, roundtrip_count):
s.send (msg)
msg = s.recv ()
assert len (msg) == message_size
end = datetime.now ()
delta = (end - start).microseconds + 1000000 * (end - start).seconds
latency = float (delta) / roundtrip_count / 2
print "message size: %.0f [B]" % (message_size, )
print "roundtrip count: %.0f" % (roundtrip_count, )
print "mean latency: %.3f [us]" % (latency, )
if __name__ == "__main__":
main ()
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