modify_buffer_size.py

#!/usr/bin/env python


import socket

SEND_BUF_SIZE = 4096
RECV_BUF_SIZE = 4096

def modify_buff_size():
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    # Get the size of the sockets send buffer
    bufsize = sock.getsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF)
    print "Buffer size [Before]:%d" %bufsize

    sock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
    sock.setsockopt(
        socket.SOL_SOCKET,
        socket.SO_SNDBUF,
        SEND_BUF_SIZE)
    sock.setsockopt(
        socket.SOL_SOCKET,
        socket.SO_RCVBUF,
        RECV_BUF_SIZE)
    bufsize = sock.getsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF)
    print "Buffer size [After] :%d" %bufsize

if __name__ == '__main__':
    modify_buff_size()