[lwip-users] lwip1.4.1 tcp transmit speed

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[lwip-users] lwip1.4.1 tcp transmit speed

From:	Richard Wood
Subject:	[lwip-users] lwip1.4.1 tcp transmit speed
Date:	Wed, 3 Jul 2013 00:20:57 -0700 (PDT)

I ported lwip1.4.1 to my system. And I added a simple ftp server in my system.
It simply uses a RAM disk as filesystem. When I tested it with Windows ftp, I got
about 6MB/s for upload(put), and 3Mb/s for download(get).

Why there is so great difference and how to speed up.
Does lwip send data after tcp_write?

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