C# socket编程 出现 System.OutOfMemoryException 错误

问题描述：ListenClientConnect过程 Exception of type 'System.OutOfMemoryException' was thrown.
运行环境：有100多个客户端，不出意外，长时间在线，心跳包是60秒一个，数据是5分钟一个
代码如下 之前出现过类似问题 加了GC.Collect(); 但是还是没解决

 private void ListenClientConnect(object ServerSocket)

        {

            while (true)

            {

                try

                {

                    Socket socket = (Socket)ServerSocket;

                    Socket clientSocket = socket.Accept();

                    Thread receiveThread = new Thread(receivesocketmessage);

                    receiveThread.IsBackground = true;

                    receiveThread.Start(clientSocket);

                }

                catch (Exception er) { Wlog wlog = new Wlog(); wlog.errlog("ListenClientConnect" + " " + er.Message); GC.Collect(); }

            }

        }

 private void receivesocketmessage(object clientSocket)

        {

            Socket myClientSocket = (Socket)clientSocket;

            byte[] result=new byte[1024];

            DateTime dt = DateTime.Now;

            while (true)

            {

                try

                {

                    if ((DateTime.Now - dt).TotalSeconds > 70)

                    {

                        myClientSocket.Shutdown(SocketShutdown.Both);

                        myClientSocket.Close();

                        break;

                    } //根据超时时间结束线程

                    int receiveNumber = 0;

                    //通过clientSocket接收数据  

                    try

                    {

                        receiveNumber = myClientSocket.Receive(result);

                    }

                    catch (Exception er) 

                    {

                        Wlog wlog = new Wlog(); wlog.errlog("myClientSocket.Receive " + er.Message);

                        myClientSocket.Shutdown(SocketShutdown.Both);

                        myClientSocket.Close();

                        break;

                    }

                    //Console.WriteLine("接收客户端{0}消息{1}", myClientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, receiveNumber));

                    string str = "";

                    if (receiveNumber > 0)

                    {

                        dt = DateTime.Now;

                          for (int i = 0; i < receiveNumber; i++)

                            { str += result[i].ToString("X").PadLeft(2, '0'); }

                            jiexiPara jp = new jiexiPara(str, DateTime.Now, 1, "");

                            baowenjiexi(jp, clientSocket);

                    }

                }

                catch (Exception er) { Wlog wlog = new Wlog(); wlog.errlog("receivesocketmessage "+er.Message); }

                //Thread.Sleep(80);

            }

            GC.Collect();

        }