[Bloat] setting queue depth on tail drop configurations of pfifo_fast

Toke Høiland-Jørgensen toke at toke.dk
Fri Mar 27 18:18:30 EDT 2015

>I would like to reduce the tail drop queue size to 100 packets (down
>from the default of 1000) and see how that impacts the test. 3 seconds
>of bloat is pretty bad, and I would like to compare how ABR works at at
>1 second and at 200-300 ms.

Did you re-initiate the pfifo_fast qdisc after changing txqlen? IIRC, it picks up the len at init time, and so won't update automatically when you change it...


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