mono, c#, sockets, performance

I developed simple async server that listens to unix socket and sync client that send the some small piece of data. Time between moment when i send data from client to the moment when server receives them is completly random, from 1 to 9 seconds. I wonder why is the reason? Server is implemented as shown in msdn example here (using beginReceive): http://msdn.microsoft.com/en-us/library/fx6588te.aspx ``` EndPoint ep = new UnixEndPoint(_fileName); _socket = new Socket(AddressFamily.Unix, SocketType.Stream, ProtocolType.IP); try { _socket.Bind(ep); _socket.Listen(_maxConnectionsInQuee); while(true) { done.Reset(); _socket.BeginAccept(new AsyncCallback(AcceptCallback), null); done.WaitOne(); } } ``` And in the client: ``` EndPoint ep = new UnixEndPoint(_fileName); _socket = new Socket(AddressFamily.Unix, SocketType.Stream, ProtocolType.IP); _socket.Connect(ep); byte[] bytes = Encoding.UTF8.GetBytes(message); _socket.Send(bytes); ``` Method that sends data to the server is called from webservice method (running via xsp2).