On 8/31/2023 3:39 PM, Petro Karashchenko wrote:
Hello, I'm having an issue with a network based application on NuttX. I have a HTTP server that is built with the help of the "netlib_server" interface. When I'm trying to access my server with curl multiple times in a row I see that there is a gap close to 500ms on the PC side when accessing the device. I think maybe this is somehow related to a case where each time a new request is accepted the client socket is created, handled and closed? I will deepdive into this of course and will analyze wireshark logs, but maybe someone has any guesses or met similar issues in the past? I mean maybe there is some kind of "blacklist" or TCP/socket configuration that prevents new connections from being established for a certain period of time? Best regards, Petro
You will have to use wireshark to get to the bottom. It sounds like there is some delay or timeout that is causing the issue. Perhaps in the 3-way handshake. It taks 500ms for a missing ACK to be detected. Are you using delayed ACKs? That delay is 500ms too.
