Hi Grenville, Thanks for the email. I have replied inline below: On Sun, Mar 23, 2025 at 2:28 AM grenville armitage wrote: > Hi Mohit, > > Thanks for doing the comparison! > > As for "*any other material related to this?*" I've had a dig around, and > there is not a lot. Rasool (the FreeBSD fq-pie author) did write up a > university tech report in April 2016, "*Dummynet AQM v0.2 – CoDel, > FQ-CoDel, PIE and FQ-PIE for FreeBSD’s ipfw/dummynet framework*" (wayback > machine link > ). > There's also a small mention in an LCN 2017 paper titled "*Characterising > LEDBAT Performance Through Bottlenecks Using PIE, FQ-CoDel and FQ-PIE > Active Queue Management*" (ieee link > , author preprint > ). > Hope these are of some (historical) interest to your I-D (and the wider > bufferbloat mailing list, too). > Thanks for sharing these links. I will go through the material. > I'm unaware of any production deployment of FreeBSD's fq-pie. > Thanks for letting me know. I presented the FQ-PIE ID in the recently concluded IETF at tsvwg. I believe there was interest in the group to have a specification for FQ-PIE. It would be great if you could share your views on the tsvwg mailing list when you get a chance. Thanks and Regards, Mohit P. Tahiliani