[Cake] set filtered acks to bulk mode

[Ryan Mounce]

This appears to panic (and has, very indirectly, caused my LEDE router
to wipe itself). Will take a closer look later.

Regards,
Ryan Mounce


On 6 December 2017 at 08:30, Dave Taht <dave.taht at gmail.com> wrote:
> The attached patch attempts to deprioritize bulk ack flows in cake.
>
> Once we start accumulating enough acks to filter out, and we start
> filtering them out, the "sparse flow optimization" in cake will
> start prioritizing the shorter queues. This patch attempts to stop
> that, which should give more time for more acks to be eliminated,
> and deprioritize bulk ack flows slightly in favor of other traffic
> that needs less latency.
>
> Interesting stats from testing would be to measure a change in
> ack_drops between the two versions, and changes in the rate of
> increase of tcp. The 50x1 settings would be the most dramatic test...
>
> --
>
> Dave Täht
> CEO, TekLibre, LLC
> http://www.teklibre.com
> Tel: 1-669-226-2619
>
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