RE: [lwip-users] RE: Performance question

[Matthew Yingling]

Current?  My copy of EDK 9.2 includes LwIP 1.2.0.

-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of Paul
Tobias
Sent: Tuesday, December 18, 2007 3:04 PM
To: address@hidden
Subject: [lwip-users] RE: Performance question

Using LWIP 0.8 (the current Xilinx distribution) raw API on a 
300 MHz PPC in Xilinx's ML403 development board, but otherwise a very
similar setup to Bill Auerbach's, we can receive about 13 Mbytes/sec 
from an old WinXP machine (net payload).  This is using programmed 
I/O to read the TEMAC FIFOs which is very very slow, so we are moving 
to using custom DMA.  Lwip processing for a packet takes about 
14 microsecs with the TCP checksumming turned off.  (I had previously 
reported receiving 300-400 Mbps using older drivers, but I now think 
that figure was erroneous.)

Paul

www.PaulTobias.com 



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