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* [Bloat] *under*bloated networks
@ 2021-11-23  3:35 Dave Taht
  2021-11-28 15:42 ` Neal Cardwell
  0 siblings, 1 reply; 3+ messages in thread
From: Dave Taht @ 2021-11-23  3:35 UTC (permalink / raw)
  To: bloat, Rpm

In the last two weeks I have found two dramatically underbuffered Gbit
fiber networks.

This one appears to have about a 400 full size packet uplink buffer (5ms)[1]

https://imgur.com/a/Bm9hdNf

It was pretty remarkable to see how well multiple tcp flows still
achieved close to the full rate with such a small fixed size queue,
eventually.

A single bbr flow can't crack 150mbits: https://imgur.com/a/DpydL5K.

[1] Data courtesy testing "eethaw"'s eero 6's new hardware fq_codel
offload, which is, seemingly good to a gbit at least on one direction.

https://www.reddit.com/r/eero/comments/qxbkcl/66_is_out/


-- 
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-11-28 18:24 UTC | newest]

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2021-11-23  3:35 [Bloat] *under*bloated networks Dave Taht
2021-11-28 15:42 ` Neal Cardwell
2021-11-28 18:24   ` Dave Taht

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