Re: [Bloat] less than best effort: TCP - flexis - A New Approach To Incipient Congestion Detection and Control

[David Lang <david@lang.hm>]

On Sat, 2 Apr 2022, Dave Taht wrote:

> I have always disagreed with the "don't reduce segment size" crowd,
> btw. If you have a rate where you need to go below 2mss, it doesn't
> hurt the network to reduce the size of the packet, and you can keep
> the signal strength up by reducing that size and continuing to sample
> rtt, to respond quickly.
>
> Even if you are only passing a single byte of data, by lowering this
> below everyone else's 2mss noise floor, you still eventually win, and
> also you occupy space in packet fifos, reducing overall latency, as
> bytes=time. IMHO.

this ignores per-packet overhead (which is headers + inter-packet time). As data 
rates get faster, the inter-packet time is not shrinking to match.

This is especially true in wifi where the headers are transmitted at a much 
slower speed than the data for compatibility reasons (as there may be many 
different data rates on any channel), but it still applies to wired networks.

David Lang