Re: [lwip-devel] UDP - transmission inefficiences

[Simon Kallweit]

Bill Auerbach wrote:
> In trying to isolate which components are responsible for the significant
> lack of TCP transmission speeds, I decided it's easier to do UDP burst
> tests.  This would allow me to quantify the Ethernet driver, processor and
> memory speeds of my system.  Since disappointing transmission speeds have
> come up numerous times from others, I think my questions and experience will
> definitely help others.

Well, it also occurred to me that TCP transmission speed is quite 
limited in my eCos port. It's about a third of the UDP transmission 
speed in my measurements. Is this in the same league as your 
measurements? I know this depends a lot on the actual configuration, but 
just to get a little bit of sense for it.

My current application only uses GPRS, so transmission speed is not a 
big issue for me now, but I think for other applications it could be 
rather troublesome.

Simon