Hello Jens, I have driver form Infineon, they provide low level interface to PHY and MAC on chip. This part should be simple. I don't think problem is there. If you have idea what I could check, let me know.
rum -----Messaggio originale----- Da: lwip-users [mailto:[email protected]] Per conto di Jens Nielsen Inviato: mercoledì 11 maggio 2016 16:52 A: [email protected] Oggetto: Re: [lwip-users] socket slow down Hi If you search the list you will find a lot of people with the same question, it's impossible to tell where your packets are delayed without you doing some analysis (traces? breakpoints?) but one thing I can say for sure is that your problem is quite certainly not within lwip. A common error is to assume that one packet equals one interrupt which equals one signalled semaphore which equals one processed packet, whenever you receive a second packet before the previous is processed you'll be "one packet behind" and experience delays like you describe. Where did you get your driver? Best regards Jens On 2016-05-11 12:42, Rastislav Uhrin wrote: > > Hello, > > I need advice and help on one issue with lwip stack version 1.4.1. I > am new to this stack and to networking in general. Nevertheless I have > integrated it to application on Infineon xmc processor together with > FreeRTOS. > > Looking on many different examples on the internet and many trial and > error. I am using netconn sockets. Application works! > > The only problem is that after some time, better say after exchanging > several 10-100 packets of different sizes, response gets slow. From > 2ms down to 2-3seconds. It still works but slow. Same if I use ping. > > I tried all possible setting of lwip options but of course since I > don't have deep insight of what they influence I was not able to > improve this behavior. > > I would appreciate if you can give me a hint what could be wrong, what > could I check, how to proceed to debug this strange behavior. > > I tried also new version 2.0 of stack but behavior is same. > > rum > > > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
