[lwip-users] TCP Throughput

[Adam Fullerton]

Hi,

I'm using a 144MHz SH2A with a 72MHz external bus & I'm only seeing 
TCP throughput of about 2.4MB/S. I am not sure that I have lwIP 
configured properly.

I am using HyperTerminal on the PC to send a command to the SH to 
send back a 1MB string. Here is a Wireshark capture of a transfer:
www.ardware.co.uk/rte/tcpslow.pcap

I am not experienced enough to know if the TCP ZeroWindow message 
from the PC is an indication that I have configured lwIP wrongly or 
the PC can't handle the data.

Thanks in advance.

Adam Fullerton.