Hello, I found a timing problem while playing with the xmlrpx stuff.
I created a very simple server, running on a network node on windows. The client runs on windows or linux. It runs a very simple test function on the server which just echos a passed string. The trip time is beeing measured. When I use a 1024 char test string I get a trip time in the 10-20ms range on windows and linux. But for small arguments the trip time explodes - why on earth ?! May be this problem is here off topic and tcp/ip stack related. Here is the very very simply test server: #!/usr/bin/python # -*- coding: cp1250 -*- # xmlrpc test server import SimpleXMLRPCServer import xmlrpclib import time # the test function - justs echos the argument def RunTest(buffer): return buffer print "Starting RPC Server..." # Create server server = SimpleXMLRPCServer.SimpleXMLRPCServer(("node01", 10000)) server.register_function(RunTest) # Run the server's main loop server.serve_forever() This is the test client: #!/usr/bin/python # -*- coding: cp1250 -*- # Test for Roundtrip Time xmlrpc calls import SimpleXMLRPCServer import xmlrpclib import datetime print "started..." s = xmlrpclib.ServerProxy('http://laptvm:10000') # place here your server address for scale in (100240, 10240, 1024, 512, 256, 128, 64, 32, 16, 10, 1): print "Checking with", scale buffer = "0123456789" * scale now = datetime.datetime.now() for i in range(10): res = s.RunTest(buffer) if buffer != res: print "data error" later = datetime.datetime.now() dt = later - now print "time for 10 loops: %f" % (dt.seconds + (0.000001 * dt.microseconds)) Some results from my tests here: started... Checking with 100240 time for 10 loops: 3.282000 Checking with 10240 time for 10 loops: 0.360000 Checking with 1024 time for 10 loops: 0.078000 Checking with 512 time for 10 loops: 0.047000 Checking with 256 time for 10 loops: 0.046000 Checking with 128 time for 10 loops: 0.047000 Checking with 64 time for 10 loops: 1.985000 ' Whats this ?! - smaler packets, more time ?! Checking with 32 time for 10 loops: 2.000000 Checking with 16 time for 10 loops: 2.000000 Checking with 10 time for 10 loops: 2.000000 Checking with 1 time for 10 loops: 2.000000 Tanks a lot, Hans -- http://mail.python.org/mailman/listinfo/python-list