From: Dave Taht <dave.taht@gmail.com>
To: Jonathan Morton <chromatix99@gmail.com>
Cc: Sebastian Moeller <moeller0@gmx.de>, bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] [Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking
Date: Sat, 11 Aug 2018 12:17:01 -0700 [thread overview]
Message-ID: <CAA93jw6F=8t9PuBdwzXA54ceZJL_oB7tE99tKXnOYOQ4bCZ6nA@mail.gmail.com> (raw)
In-Reply-To: <CAA93jw5agD8N06PxtgH0xUJg4pR=OzeHjVS8HX1NzA6EnBcg5A@mail.gmail.com>
In revisiting this old thread, in light of this,
https://github.com/systemd/systemd/issues/9725
and my test results of cake with and without ecn under big loads... I
feel as though I'm becoming a
pariah in favor of queue length management, by dropping packets! In
bufferbloat.net! cake used to drop ecn marked packets at overload, I'm
seeing enormous differences in queue depth w and without ecn. (On one
test at 100mbit, 10ms queues vs 30ms), more details later.
Now, some of this is that cubic tcp is just way too aggressive and
perhaps some mods to it have arrived in the last 5 years that make it
even worse... so I'm going to go do a bit of testing with osx's
implementation
in particular. The ecn responses laid out in the original rfc were
against reno, a sawtooth, against iw2, and I also think that cwnd is
not decreasing enough nowadays in the first place.
next prev parent reply other threads:[~2018-08-11 19:16 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <152717340941.28154.812883711295847116.malone@soybean.canonical.com>
2018-05-24 15:38 ` [Bloat] Fwd: " Jan Ceuleers
2018-06-04 11:28 ` Bless, Roland (TM)
2018-06-04 13:16 ` Jonas Mårtensson
2018-06-04 17:08 ` Dave Taht
2018-06-04 18:22 ` Jonas Mårtensson
2018-06-04 21:36 ` Jonathan Morton
2018-06-05 15:10 ` [Bloat] " Jonathan Foulkes
2018-06-05 17:24 ` Jonathan Morton
2018-06-05 18:34 ` Sebastian Moeller
2018-06-05 19:31 ` Jonathan Morton
2018-06-06 6:53 ` Sebastian Moeller
2018-06-06 13:04 ` Jonathan Morton
2018-06-12 6:39 ` Dave Taht
2018-06-12 6:47 ` Dave Taht
2018-08-11 19:17 ` Dave Taht [this message]
2018-08-13 22:29 ` [Bloat] ecn redux Dave Taht
2018-06-06 7:44 ` [Bloat] [Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking Bless, Roland (TM)
2018-06-06 8:15 ` Sebastian Moeller
2018-06-06 8:55 ` Mario Hock
2018-06-05 0:22 ` [Bloat] Fwd: " Michael Richardson
2018-06-05 6:21 ` Jonas Mårtensson
2018-06-06 4:14 ` Mikael Abrahamsson
2018-06-07 12:56 ` [Bloat] Fwd: [Bug 1436945] -> What other options/bufferbloat-advice ... ? Simon Iremonger (bufferbloat)
2018-06-04 23:00 ` [Bloat] Fwd: [Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking David Lang
2018-06-05 7:44 ` Mario Hock
2018-06-05 7:49 ` Jonathan Morton
2018-06-05 11:01 ` Mario Hock
2018-08-16 21:08 ` Dave Taht
[not found] <mailman.3.1527177601.17575.bloat@lists.bufferbloat.net>
2018-05-24 16:31 ` [Bloat] " Rich Brown
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