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From: Jonathan Morton <chromatix99@gmail.com>
To: Pete Heist <peteheist@gmail.com>
Cc: Cake List <cake@lists.bufferbloat.net>
Subject: Re: [Cake] lan keyword affects host fairness
Date: Thu, 23 Nov 2017 11:44:59 +0200	[thread overview]
Message-ID: <CAJq5cE08yhPxOJwCBbHFQiQ1Hp4_Zff2f7Oia+a5S=tdNZBJNg@mail.gmail.com> (raw)
In-Reply-To: <71FB183D-F848-4513-A6F6-D03FD0F10769@gmail.com>

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This is most likely an interaction of the AQM with Linux' scheduling
latency.

At the 'lan' setting, the time comstants are similar in magnitude to the
delays induced by Linux itself, so congestion might be signalled
prematurely.  The flows will then become sparse and total throughput
reduced, leaving little or no back-pressure for the fairness logic to work
against.

For this reason, you might have better luck with the next higher RTT
setting.

- Jonathan Morton

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  reply	other threads:[~2017-11-23  9:45 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-23  9:21 Pete Heist
2017-11-23  9:44 ` Jonathan Morton [this message]
2017-11-23 10:25   ` Pete Heist
2017-11-23 17:03     ` Dave Taht
2017-11-24 11:21       ` Toke Høiland-Jørgensen
2017-11-24 12:06         ` Sebastian Moeller
2017-11-24 13:15           ` Marcelo Ricardo Leitner
2017-11-24 13:49         ` Pete Heist
2017-11-24 19:41           ` Pete Heist
2017-11-24 19:48             ` Jonathan Morton
2017-11-24 20:24               ` Pete Heist
     [not found]                 ` <CAJq5cE2eX4AJCPaBL-FW7Oj_afthXKnZn1RHQPH1VBCJfCyXDg@mail.gmail.com>
2017-11-24 20:32                   ` Jonathan Morton
2017-11-25  7:18                     ` Pete Heist
2017-11-24 20:03             ` Dave Taht
2017-11-24 20:40             ` Dave Taht

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