From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alessandro Rubini <rubini-list@gnudd.com>
Date: Wed, 22 Jul 2009 17:23:25 +0200
Subject: [U-Boot] http client?
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	<BLU127-DAV686E79B5BF3A896935555A91B0@phx.gbl>
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> Hm... but 20 minutes versus 30 seconds cannot be explained by TFTP
> versus HTTP alone. There must be other effects impacting your network
> traffic. Did you run any deeper analysis?

I'm sure it depends on network delays. TCP has the sliding window
mechanism, so several packets can be in flight before you get a single
ack.  TFTP requires one ack for each data packet, doesn't it?

If you have high delays, TCP is usually a win, even with relatively
low bandwidth. Otherwise, we need a an UDP protocol that doesn't
require individual ack.

/alessandro