-----Original Message-----
It worked but I noticed a relatively big latency (about 200ms or more)
between arrival of buf_n and buf_n+1.
Where does it come from? How lwip stack schedule an actual transmission
upon receipt of tcp_output?
If your receiving PC is running Windows, 200ms is a "smoking gun" for
Nagle's Algorithm. Google that up.
On windows fix this by opening the Registry, go to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\In
terfaces
Find the correct interface under there by IP Address
Add these DWORD values
"TcpAckFrequency" DWORD 1
"TCPNoDelay" DWORD 1
Then restart the PC.
HTH!
Marty
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