[Twisted-Python] How to accept connections faster

Sinang, Danny D.Sinang at spitech.com
Wed Mar 16 05:21:47 EST 2005


Hello.
 
I ran the (Twisted) server code below and it accepts a client socket
connection every 1.3 seconds. The equivalent Synchronous socket code
accepts one every 2 seconds. 
 
Can anyone here suggest any code improvements for my Twisted server to
accept connections faster ?
 
I've include the Synchronous socket server code and the client generator
code below as well.
 
#
========================================================================
==================
# Twisted server code
#
========================================================================
==================
 
from twisted.protocols import basic
from twisted.internet import reactor, protocol
 
import time
 

class MyChat(basic.LineReceiver):
    def connectionMade(self):
 
        print "Got a connection from on " + time.asctime()
        self.transport.write("Welcome. You are client number : ")
        print "Looping..."
        for i in range(10000000):
            pass
        print "Looping done."
        self.transport.loseConnection()

    def connectionLost(self, reason):
        pass

    def lineReceived(self, line):
        for c in self.factory.clients:
            c.message(line)
 
    def message(self, message):
        self.transport.write(message + '\n')
 
    def __init__ (self) :
        self.x = 1
        self.duration = 60
 
print "Starting Twisted Async Server"
print
 
factory = protocol.ServerFactory()
factory.protocol = MyChat
factory.clients = []
 
reactor.listenTCP(7878,factory,10)
reactor.run()
    
#
========================================================================
=========
# Synchronous socket server code 
#
========================================================================
=========
 
from socket import *
import sys
import time
 
s = socket(AF_INET, SOCK_STREAM)
s.bind(('', 7878))
s.listen(10)
 
print 'Login Server started on port 7878' 
 
x = 1
 

while 1:
    client,addr = s.accept()
    print str(x) + ". Got a conection from " + str(addr) + " on " +
time.asctime()
    print "Looping..."  
    for i in range(10000000):
        pass
    print "Loop done. Ready for connection..."
    print
    client.sendall ("Welcome. You are client number : " + str(x))
    x += 1
 
#
========================================================================
=========
# Socket client code
#
========================================================================
=========
 
from socket import *
import sys
import time
 
s = socket(AF_INET, SOCK_STREAM)
 
print 'Creating 20 clients...' 
 
x = 1
duration = 60
for i in range(20):
    print "Client " + str(x) + "." + " connecting to localhost at " +
time.asctime()
    s = socket(AF_INET, SOCK_STREAM)
    s.connect (("127.0.0.1",7878))
    print "Client Connected..." , time.asctime()
    s.sendall("Hello\r\n")
    data = s.recv(1024)
    print data
    x += 1 
    s.close()
 
 
Regards,
Danny
 
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