Re: [lwip-users] help! performance of lwip?

[Timmy Brolin]

It also depends on your checksum routine.
Assembly optimised checksum makes a big difference compared to the 
standard C routine.
See the related checksum optimisation discussions.

/Timmy Brolin

Cedric VINCENT wrote:

> On 11/15/05, wang youramulet <address@hidden> wrote:
>  
>
> > hi,
> >
> > Is there anybody know lwip reasonable range of speed, such as send and
> > receive udp pakets? With and without the os, such as psos or ucosII.
> >    
>
> I think it depends on your platform/driver. For instance, I reach up
> to 600 ko/s (receiving UDP packets) with current Xilinx drivers (on
> PPC 405  @ 350 MHz, without OS), but Xilinx will release new drivers
> with DMA support, so performance will be increased (probably up to 4
> Mo/s).
>
> Regards,
> Cedric.
>
> PS : be carefull with IP fragmentation ; it can slow down the speed.
>
> --
> ------------------------------------------
> http://cedric.vincent.perso.free.fr/
> ------------------------------------------
>
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