Thank you I will check your configuration, but i need to understan the meaning of this parameter. I hope to have enough memory.
Regards Oscar On Wed, Apr 7, 2010 at 11:12 PM, Martin Persich <[email protected]> wrote: > Hi Oscar, > I am working with AVR32 and hardware such like EVK1100 too. I have TFTP > server in my application (UDP transport) and my RX speed is about 400 KB/sec > and TX is about 300 KB/sec (without any optimalization). In you "lwipopt.h" > is quite low value of PBUF_POOL_SIZE by my mind. I attached my configuration > file. > Best Regards, > Martin Persich > > > ----- Original Message ----- > *From:* Oscar F <[email protected]> > *To:* Mailing list for lwIP users <[email protected]> > *Sent:* Wednesday, April 07, 2010 10:17 PM > *Subject:* Re: [lwip-users] Increase Speed > > Thanks Kieran, i attach the files that you want. > > The error_LOG.rar is a capture of wireshark. This file is sending a big > packet at the end. You can see the size of the packets browsing by the > network. My application send packets to PC application, and this wait about > 25 second to receive the full message (27Mbytes). My application need 87 > second to send only 500Kbytes. > > My aim is improve the speed a lot of. I hope to have enoght memory, because > i have moved the dinamic memory to external memory, and i have reserved > 2Mbytes for this purpose. > > I hope you can help me, and tell me the typical paramet tha i can modify > of lwipopt.h > > thanks in advance > > Regards > > Oscar > > > On Wed, Apr 7, 2010 at 6:02 PM, Kieran Mansley <[email protected]> wrote: > >> >> On 7 Apr 2010, at 07:15, Oscar F wrote: >> >> > Hello everybody, i´m using lwip in AVR32 in EVK1100. >> > >> > I´m sending a big packet ( 15 Mbytes) , >> >> Your packets will be much smaller than that: your write of 15 Mbytes gets >> split up into lots of smaller packets that the network can handle >> efficiently (as you saw in wireshark). >> >> > and the time to finish the process is very high!!. In the sniffer >> (wireshark) i saw that the packet is divided in two size 1400 and 690 i >> don´t remenber exactly, but this order the size. >> > >> > How can i increse the speed of transmission? >> >> Work out what is limiting the speed at the moment and improve that until >> it is no longer the bottleneck. >> >> > should i change the file of configure lwipopt.h? what value are typical >> to send very fast? >> >> lwipopts.h is where you can configure parameters to control lwIP, so this >> is the right place to be making changes. The appropriate settings though >> will depend on your system, and I'm not familiar with your hardware. >> >> Could you get part of a packet capture showing your transfer? It would be >> useful to know what performance you're currently getting, and what you >> expect to get. Is your traffic going to something on the same network or >> off across the Internet? How much memory does your system have available, >> and what are your current lwipopts.h settings? >> >> Thanks >> >> Kieran >> >> _______________________________________________ >> lwip-users mailing list >> [email protected] >> http://lists.nongnu.org/mailman/listinfo/lwip-users >> > > > > -- > "En la vida hay tres cosas que nunca dan marcha atras, la palabra > pronunciada, la flecha lanzada y la oportunidad perdida" > > > _______________________________________________ > lwip-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/lwip-users > -- "En la vida hay tres cosas que nunca dan marcha atras, la palabra pronunciada, la flecha lanzada y la oportunidad perdida"
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