Cake - FQ_codel the next generation
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From: Jonathan Morton <chromatix99@gmail.com>
To: Andy Furniss <adf.lists@gmail.com>
Cc: Dendari Marini <dendari92@gmail.com>,
	Benjamin Cronce <bcronce@gmail.com>,
	cake@lists.bufferbloat.net
Subject: Re: [Cake] Getting Cake to work better with Steam and similar applications
Date: Mon, 1 May 2017 15:08:17 +0300	[thread overview]
Message-ID: <F4F94502-59A7-4AA2-8633-31401752CFD4@gmail.com> (raw)
In-Reply-To: <8d2720cb-fd26-0ed8-5e59-c9a062384966@gmail.com>


> On 1 May, 2017, at 14:32, Andy Furniss <adf.lists@gmail.com> wrote:
> 
> Well it seems distance is important for BBR. It seems to have a design
> whereby your rtt to the server determines how badly it will bork your
> latency. Unlike cubic it doesn't take loss/ecn as a hint to get out of
> its exponential phase, which is IMHO not a friendly thing to do, I mean
> didn't they think people have to share connections :-(
> 
> Playing with a sim, something like dash that grabs a meg waits then gets
> another with a new connection needs crazy amount of back off to avoid
> borking latency every chunk. The amount of disruption getting worse the
> higher the RTT of the TCP.

Just to be sure - are you running sch_fq on the egress interface(s) of the BBR sender?  If not, *you are not running BBR*.  BBR needs the pacing functionality of sch_fq to work correctly.

 - Jonathan Morton


  reply	other threads:[~2017-05-01 12:08 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-20 13:39 Dendari Marini
2017-04-20 13:43 ` Sebastian Moeller
2017-04-20 15:23   ` Dendari Marini
2017-04-20 15:32     ` Jonathan Morton
2017-04-20 16:05       ` Dendari Marini
2017-04-20 17:12         ` Andy Furniss
2017-04-20 17:36         ` Jonathan Morton
2017-04-20 18:35         ` Sebastian Moeller
2017-04-20 18:36         ` Sebastian Moeller
2017-04-21  8:34           ` Dendari Marini
2017-04-21 13:25             ` Sebastian Moeller
2017-04-21 13:27             ` Dendari Marini
2017-04-22  8:25               ` Dendari Marini
2017-04-22  9:36                 ` Jonathan Morton
2017-04-22 12:50                   ` xnoreq
2017-04-22 13:41                   ` Tristan Seligmann
2017-04-22 13:51                   ` Andy Furniss
2017-04-22 14:03                     ` Andy Furniss
2017-04-22 16:38                       ` Andy Furniss
2017-04-22 16:45                         ` Dave Taht
2017-04-22 17:00                           ` Tristan Seligmann
2017-04-22 20:24                         ` Andy Furniss
2017-04-22 16:47                   ` Sebastian Moeller
2017-04-22 21:56                     ` Dendari Marini
2017-04-22 22:15                       ` Sebastian Moeller
2017-04-23 12:32                         ` David Lang
2017-04-24  7:55                           ` Sebastian Moeller
2017-04-24  8:41                             ` Dendari Marini
2017-04-24 11:34                               ` Sebastian Moeller
2017-04-24 12:08                                 ` Dendari Marini
2017-04-24 12:35                                   ` Sebastian Moeller
2017-04-24 13:49                                     ` Dendari Marini
2017-04-24 15:42                                       ` Sebastian Moeller
2017-04-24 17:32                                       ` Sebastian Moeller
2017-04-25 10:26                               ` Andy Furniss
2017-04-25 11:24                                 ` Dendari Marini
2017-04-25 12:58                                   ` Andy Furniss
2017-04-25 18:22                                     ` Dendari Marini
2017-04-25 19:10                                       ` Jonathan Morton
2017-04-25 20:44                                         ` Dendari Marini
2017-04-25 21:32                                           ` Andy Furniss
2017-04-25 22:33                                           ` Benjamin Cronce
2017-04-28 15:37                                             ` Dendari Marini
2017-04-29 15:11                                               ` Andy Furniss
2017-04-29 17:30                                                 ` Jonathan Morton
2017-04-29 18:29                                                   ` Andy Furniss
2017-04-30  0:05                                                     ` Andy Furniss
2017-05-01  5:50                                                       ` Jonathan Morton
2017-05-01 11:32                                               ` Andy Furniss
2017-05-01 12:08                                                 ` Jonathan Morton [this message]
2017-05-01 13:03                                                   ` Andy Furniss
2017-05-01 13:11                                                     ` Jonathan Morton
2017-05-01 14:46                                                       ` Andy Furniss
2017-04-25 21:06                                         ` Andy Furniss
2017-04-25 21:16                                           ` Neil Shepperd
2017-04-25 21:37                                             ` Andy Furniss
2017-04-25 21:43                                     ` Sebastian Moeller
2017-04-25 22:06                                       ` Andy Furniss
2017-04-25 22:29                                         ` Andy Furniss
2017-04-25 22:32                                           ` Andy Furniss
2017-04-22 22:35                       ` Andy Furniss
2017-04-22 14:12                 ` Sebastian Moeller
2017-04-20 18:16     ` Sebastian Moeller

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