performance of unix socket

[xiaowen581]

Is the performance of Unix sockets seemingly inferior to TCP an expected outcome, or could it be due to incorrect usage?
In the following example of sending data from the server to the client, unix_socket.py takes an average of 0.2 seconds, while tcp_socket.py takes an average of 0.0006 seconds. Based on my understanding, the cost of unix sockets should be lower, shouldn't it?

socket.zip