hi Chris, thanks a lot your sharing. Could you please forward your post on 11/22 since i could not find it.
best regards, Thien On Wed, Feb 3, 2010 at 5:56 PM, Chris Strahm <[email protected]> wrote: > I am using same MCU LPC2468 with FreeRTOS in Raw mode, I get about > 2.5-3MB/s. I wrote a post on 11/22 that gave more details about my > testing/results. At these rates a lot of little factors matter. A lot of > code fine tuning, optimization. It's a lot of time consuming testing and > trial&error code rewrites. 4MB/s might be possible but 5MB/s may be > optimistic, if we are talking about TCP with full checksum and no zero > copy. And that is assuming a direct connection between lwIP and PC. > 5MB/sec is approaching 50% of the full E100 line speed. Going through a > real LAN with traffic is another matter entirely. Just going through our > CISCO 2940 switches the speed takes another hit. Increasing the zero > traffic direct connection speed beyond a certain point probably isn't going > to yield much overall performance gains when operated in a real network. > Just my experience. > > Chris. > > > _______________________________________________ > lwip-users mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/lwip-users >
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