dwc on banana pi pro and poor network performance

[grenville armitage]

On 10/03/2015 15:41, jau789 at gmail.com wrote:
> Since iperf uses tcp by default, the congestion control methods
> used on the test systems may affect the test results quite seriously.
> Most of the cc methods known to freebsd were not designed with
> short high capasity links in mind. Many of those cc methods were
> in fact intended for long distances and high bandwidth. In this case
> the RTT is very short while many of the CC methods expext much
> higher RTTs.

I'm curious which of FreeBSD's cc_* algorithms you consider to _expect_ "much higher RTTs". This seems like something we should fix.

cheers,
gja

>  For the best results on short distances and high
> bandwidth enable ECN bits and use dctcp. The dctcp method was
> from day one intended to behave gracefully also when RTT is very
> short and the bandwidth is large.
>
> --jau

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