From: Andy Furniss <adf.lists@gmail.com>
To: Sebastian Moeller <moeller0@gmx.de>
Cc: Jonathan Morton <chromatix99@gmail.com>, cake@lists.bufferbloat.net
Subject: Re: [Cake] 5ms target hurting tcp throughput tweakable?
Date: Mon, 27 Feb 2017 18:02:04 +0000 [thread overview]
Message-ID: <9353cc42-220b-af1b-3105-19be52ed0627@gmail.com> (raw)
In-Reply-To: <028AA856-B11E-4025-B1BD-84BAC6768508@gmx.de>
Sebastian Moeller wrote:
> Looking at tc-adv, I would recommend to use “rtt 50” (maybe it is
> “rtt 50ms”) which allows to directly explicitly request a new
> “interval” (which IIRC is corresponding to the time you allow for
> the TCP control loop to react to cake’s ecn-marking/dropping)
> “target’ will be calculated as 5% of the explicit interval, in
> accordance with the rationale in the codel RFC.
50 is certainly better than 10, but still seems to hurt single a bit
even on a close server.
On more distant servers maybe even more - I am getting results that are
too variable to tell properly at the current time (of day).
http://www.thinkbroadband.com/speedtest/results.html?id=1488216166262542155
Almost OK, but with 100ms this test usually shows x1 and x6 the same.
http://www.thinkbroadband.com/speedtest/results.html?id=1488218291872647755
Of course as we all know ingress shaping is a different beast anyway and
would deserve its own thread.
next prev parent reply other threads:[~2017-02-27 18:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-26 13:16 Andy Furniss
2017-02-26 13:43 ` Jonathan Morton
2017-02-26 14:34 ` Andy Furniss
2017-02-26 22:21 ` Sebastian Moeller
2017-02-27 18:02 ` Andy Furniss [this message]
2017-02-27 18:13 ` Sebastian Moeller
2017-02-27 19:26 ` Andy Furniss
2017-03-01 2:16 ` Benjamin Cronce
2017-03-01 22:48 ` Andy Furniss
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