[Bloat] AQM creeping into L2 equipment

[Dave Taht]

On Thu, Mar 20, 2014 at 12:34 PM, Aaron Wood <woody77 at gmail.com> wrote:
>> however what we are probably seeing with the measurement flows is
>> slow start causing a whole bunch of packets to be lost in a bunch.
>
>
> That would line up with the timing, and the periodic drops that I see in the
> flows when using Toke's newer wrapper (and netperf head), which attempt to
> work around the failing UDP timing flows.

Well there is some good work in linux 3.14 and beyond, and there was also
some interesting work on "initial spreading" presented at ietf.

Hopefully patches for this will be available soon.

http://tools.ietf.org/html/draft-sallantin-iccrg-initial-spreading-00

I would certainly like to be able to sanely measure the impact of
hundreds or thousands of flows in slow start, rather than/in addition to 8 flows
in congestion avoidance.

>
> -Aaron



-- 
Dave Täht

Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html