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From: Pete Heist <pete@heistp.net>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: Jonathan Morton <chromatix99@gmail.com>,
	Cake List <cake@lists.bufferbloat.net>
Subject: Re: [Cake] dual-src/dsthost unfairness, only with bi-directional traffic
Date: Fri, 4 Jan 2019 08:37:02 +0100	[thread overview]
Message-ID: <3C71614B-C4DA-4D6E-812C-FEA43A6756B5@heistp.net> (raw)
In-Reply-To: <E7503143-C9CD-4BED-8EA4-2CA444FC739E@heistp.net>


> On Jan 3, 2019, at 11:06 PM, Pete Heist <pete@heistp.net> wrote:
> 
> I’m almost sure I tested this exact scenario, and would not have put 8 up / 8 down on one IP and 1 up / 1 down on the other, which works with fairness for some reason.

I’m going to dial this statement back. I went back through my old tests and in my main series of a thousand tests or so, I was splitting the two uploads and downloads across four IPs, so that’s different. Then when we were testing fairness in combination with rtt keywords, I was in fact testing 2 up / 2 down on one IP and 8 up / 8 down on the other, which is a scenario that produces the expected results.

So unless I can find some other past tests, or build an old enough version to show that the behavior was different, I can’t be sure I ever tested it this way, and don’t know if it’s a regression or it just works as designed and I never realized it.

On the one hand the IP1=1/8, IP2=8/1 results are “fair” in the sense that one client gets his wish for 8 uploads and the other gets his wish for 8 downloads, like “hey, I’ll let you drown out my 1 download if you let me drown out your 1 upload” :) but on the other hand, when Jon says there should be a difference between the triple-isolate and dual modes, that’s not what we’re seeing here.

  parent reply	other threads:[~2019-01-04  7:37 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-01 23:04 Pete Heist
2019-01-03  3:57 ` Georgios Amanakis
2019-01-03  4:15   ` Georgios Amanakis
2019-01-03  5:18     ` Jonathan Morton
2019-01-03 10:46       ` Pete Heist
2019-01-03 11:03         ` Toke Høiland-Jørgensen
2019-01-03 13:02           ` Pete Heist
2019-01-03 13:20             ` Toke Høiland-Jørgensen
2019-01-03 16:35               ` Pete Heist
2019-01-03 18:24                 ` Georgios Amanakis
2019-01-03 22:06                 ` Pete Heist
2019-01-04  2:08                   ` Georgios Amanakis
2019-01-04  8:09                     ` Pete Heist
2019-01-04  7:37                   ` Pete Heist [this message]
2019-01-04 11:34             ` Pete Heist
2019-01-15 19:22               ` George Amanakis
2019-01-15 22:42                 ` Georgios Amanakis
2019-01-16  3:34                   ` George Amanakis
2019-01-16  3:47                     ` gamanakis
2019-01-16  7:58                       ` Pete Heist
2019-01-26  7:35                       ` Pete Heist
2019-01-28  1:34                         ` Georgios Amanakis
2019-01-18 10:06                     ` Toke Høiland-Jørgensen
2019-01-18 12:07                       ` Georgios Amanakis
2019-01-18 13:33                         ` Toke Høiland-Jørgensen
2019-01-18 13:40                           ` Sebastian Moeller
2019-01-18 14:30                             ` Toke Høiland-Jørgensen
2019-01-18 13:45                           ` Jonathan Morton
2019-01-18 14:32                             ` Toke Høiland-Jørgensen

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