Packet loss is good. Wait, what? Lets talk about Buffer Bloat with Dave Täht. - Sun, Apr 11, 2021
Packet loss is good. Wait, what? Lets talk about Buffer Bloat with Dave Täht.
Buffer Bloat. Most folks in the networking industry have at least heard this term, and may have a vague idea of what it means. It’s certain that all of us have experienced it at one time or another - and likely thought it was a different problem. Over the last few years a couple of queuing disciplines have emerged that have allowed the users of the internet to experience fewer and fewer of those odd symptoms, and we wanted to know more about how those problems are getting solved. Fortunately, we managed to pin down Dave Täht and get him to talk to us about fq_codel and cake. Or so we thought. Turns out, that’s a really, really big topic. Luckily, we had the expert to take time and really get down to the root of the problem, how it is solved, and give us a fantastic bit of history about how it came to be. This one has it all, folks. Boats, guitars, stickers, Dave even plays us a song at the end. It’s a fun one, and the deep knowledge does not disappoint. Join me, Chris Cummings, Dan Siemon, and Dave Täht as we wander through the complex forest of buffer bloat, queuing codecs, and queue theory.
Netstat command for looking at fq_codel:
Linux tc -s qdisc show dev eth0 netstat -c fq_codel -vvv
OSX netstat -c fq_codel -vvv netstat -I en0 -qq Benchmarking fq_codel