我使用Python Socket在Ubuntu服务器上实现两个本地进程之间的交互。发生了一些奇怪的事情。当我在Mac（i7）上本地运行两个进程时，它们在1秒内快速运行。但是，当我在Ubuntu服务器上运行它们时，花费超过30秒。
我认为TCP在Send（）和Recv（）之间被阻塞。当我只是让服务器发送和客户端接收消息时。然后进程也可以在1秒内运行。所以我想知道发生了什么，是否有可能修复它。非常感谢！
这里是代码
伺服器：

if __name__=='__main__':
    server1 = ServerSocket("127.0.0.1", 4321)
    server1._conn_client() 
    print("xxx");
    start_time = time.time()
    for i in range(10000):
        server1.Recv()
        server1.Send("hello") ## delete this row to disable the server to send messages
        print(i)
    end_time = time.time()
    print("Server time:", end_time - start_time)
    server1.Send("hello")
    msg = server1.Recv()
    print("hi:", msg)
    server1.close()

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委托方：

if __name__ == '__main__':
    client = ClientSocket("127.0.0.1", 4321)
    client.Connect()
    print("xxx");
    start = time.time()
    for i in range(10000):
        client.Send("hello from client1")
        client.Recv() ## delete this to disable the cleint to receive messages
    end = time.time()
    print("Client time:", end - start)
    msg =client.Recv()
    print(msg)
    client.Send("hello from client1")
    client.close()

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从其他函数定义的套接字函数：

class ServerSocket(object):
    def __init__(self, ip="127.0.0.1", port=7778):
        self.ip = ip
        self.port = port
        self._buffer_size = 80000
        self._init_socket()
        self._socket.settimeout(3000)
    def _init_socket(self):
        self._socket = socket.socket()
        ip_port = (self.ip, self.port)
        self._socket.bind(ip_port)
    def _conn_client(self):
        self._socket.listen(100)
        self._client_socket, addr = self._socket.accept()
        self._client_socket.settimeout(3000)
    def Recv(self):
        msg_len_pack = self._client_socket.recv(4)
        # print(struct.unpack('i', msg_len_pack))
        msg_len = struct.unpack('i', msg_len_pack)[0]
        # print("msg_len:", msg_len, "buffer:", self._buffer_size)
        if msg_len < self._buffer_size:
            msg_pack = self._client_socket.recv(msg_len)
            msg = json.loads(msg_pack.decode('utf-8'))
        return msg
    def Send(self,data):
        msg_pack = json.dumps(data).encode('utf-8')
        msg_len_pack = struct.pack('i', len(msg_pack))
        self._client_socket.send(msg_len_pack)
        self._client_socket.send(msg_pack) 
    def close(self):
        self._client_socket.close()
class ClientSocket(object):
    def __init__(self, ip="127.0.0.1", port=7778):
        self.ip = ip  
        self.port = port  
        self._buffer_size = 80000 
    def Connect(self):
        self._socket = socket.socket()  
        self._socket.connect((self.ip,self.port)) 
    def Send(self, data):
        msg_pack = json.dumps(data).encode('utf-8')
        msg_len_pack = struct.pack('i', len(msg_pack))
        self._socket.send(msg_len_pack)
        self._socket.send(msg_pack) 
    def Recv(self):
        msg_len_pack = self._socket.recv(4) 
        msg_len = struct.unpack('i', msg_len_pack)[0]
        if msg_len < self._buffer_size:
            msg_pack = self._socket.recv(msg_len)
            msg = json.loads(msg_pack.decode('utf-8'))
        return msg
    def close(self):
        self._socket.close()

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