Harald Schmalzbauer wrote:
Some experimental results:
When rsyncing with windows, and FreeBSD is receiver, I see the same
ACK ever two segemnts, but speed is at 72MB/s.
When FreeBSD is sender and Windows is receiver, it looks more I
expected. There are about 20 data segments before a ACK is returned.
And there are TCP Window Update Segments, reflecting smaller receiver
buffers on the windows side. But this happens at a throughput of
82MB/s!!! So the windows machine is behaving like I understand the TCP
flow control.
Any explanation why the FreeBSD machine seems to ignore window size?
IIRC, the delayed ACK RFC requires an ACK at least every second segment.
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