[lwip-users] recv ok.. send is super slow

[Rishi Khan]

I am trying to test the performance of the lwip stack between two  
linux machines. If the server is lwIP, the performance is on par with  
the linux IP stack. If the client is lwIP, it is super slow. It seems  
that lwIP only sends data after a long timeout (it does not seem tied  
to tcp_slow/fast_tmr). Also, in the linux/linux case, the CPU  
utilization goes way up, but in the lwip-to-linux, the CPU says low.  
Is there any easy way to change this behavior? Attached is a simple  
example code.

rishiperf.c
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lwipopts.h
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