From: "Klatsky, Carl" <Carl_Klatsky@comcast.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>, Yuchung Cheng <ycheng@google.com>
Cc: BBR Development <bbr-dev@googlegroups.com>,
bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] [bbr-dev] Re: "BBR" TCP patches submitted to linux kernel
Date: Wed, 2 Nov 2016 17:21:43 +0000 [thread overview]
Message-ID: <6ca4aea40ca34ec4b04648f23416da40@PACDCEX43.cable.comcast.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1611021015380.14320@uplift.swm.pp.se>
> On Tue, 1 Nov 2016, Yuchung Cheng wrote:
>
> > We are curious why you choose the single-queued AQM. Is it just for
> > the sake of testing?
>
> Non-flow aware AQM is the most commonly deployed "queue
> management" on the Internet today. Most of them are just stupid FIFOs
> with taildrop, and the buffer size can be anywhere from super small to huge
> depending on equipment used and how it's configured.
>
> Any proposed TCP congestion avoidance algorithm to be deployed on the
> wider Internet has to some degree be able to handle this deployment
> scenario without killing everything else it's sharing capacity with.
>
> Dave Tähts testing case where BBR just kills Cubic makes me very concerned.
If I am understanding BBR correctly, that is working in the sender to receiver direction. In Dave's test running TCP BBR & TCP CUBIC with a single queue AQM, where CUBIC gets crushed. Silly question, but the single queue AQM was also operating in the in sender to receiver direction for this test, yes?
next prev parent reply other threads:[~2016-11-02 17:21 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-16 21:04 [Bloat] " Dave Taht
2016-09-16 21:11 ` Steinar H. Gunderson
2016-09-16 21:14 ` Eric Dumazet
2016-09-16 22:29 ` Dave Taht
2016-09-29 11:24 ` Mário Sérgio Fujikawa Ferreira
2016-09-29 19:43 ` Dave Täht
2016-09-29 20:35 ` Aaron Wood
2016-09-30 8:12 ` Mikael Abrahamsson
2016-09-30 14:16 ` Aaron Wood
2016-09-29 21:23 ` Steinar H. Gunderson
2016-09-30 1:54 ` Mario Ferreira
2016-09-30 3:50 ` Dave Täht
2016-09-30 4:29 ` Aaron Wood
2016-09-29 23:26 ` Benjamin Cronce
2016-09-30 1:58 ` Mario Ferreira
2016-10-21 8:47 ` Steinar H. Gunderson
2016-10-21 10:28 ` Eric Dumazet
2016-10-21 10:42 ` Steinar H. Gunderson
2016-10-21 10:47 ` Steinar H. Gunderson
2016-10-21 10:55 ` Eric Dumazet
2016-10-21 10:52 ` Eric Dumazet
2016-10-21 11:03 ` Steinar H. Gunderson
2016-10-21 11:40 ` Eric Dumazet
2016-10-21 11:45 ` Steinar H. Gunderson
2016-10-27 17:04 ` Steinar H. Gunderson
2016-10-27 17:31 ` Eric Dumazet
2016-10-27 17:33 ` Dave Taht
2016-10-27 17:52 ` Eric Dumazet
2016-10-27 17:59 ` Dave Taht
2016-10-27 17:57 ` Yuchung Cheng
2016-10-27 18:14 ` Dave Taht
2016-10-27 21:30 ` [Bloat] [bbr-dev] " Yuchung Cheng
2016-11-01 23:13 ` Yuchung Cheng
2016-11-01 23:49 ` Jonathan Morton
2016-11-02 9:27 ` Mikael Abrahamsson
2016-11-02 17:21 ` Klatsky, Carl [this message]
2016-11-02 18:48 ` Dave Täht
2016-11-25 12:51 ` [Bloat] " Bernd Paysan
2016-10-21 10:50 ` Zhen Cao
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