I’m sad to hear Dave Täht passed away. We had many good chats about Bufferbloat in private and on podcasts over the years going way back to ~2009. I remember one time very early in the Bufferbloat work that he reached out and we did some VoIP quality testing and discussed a small pfifo_fast kernel bug that I found.

https://en.wikipedia.org/wiki/Dave_T%C3%A4ht

https://news.ycombinator.com/item?id=43550098

https://lwn.net/Articles/1016109

Here are a couple podcast episodes I had the pleasure of being on with Dave:

https://www.modem.show/post/s01e07

The Brothers WISP 181 – The Cake is not a Lie for ISPs