From: Greg White <g.white@CableLabs.com>
To: Aaron Wood <woody77@gmail.com>,
bloat <bloat@lists.bufferbloat.net>,
"aqm@ietf.org" <aqm@ietf.org>
Subject: Re: [Bloat] [aqm] DOCSIS 3.1 support for AQM
Date: Mon, 4 Nov 2013 23:20:46 +0000 [thread overview]
Message-ID: <CE9D7773.2152C%g.white@cablelabs.com> (raw)
In-Reply-To: <CALQXh-NBWoeCOt_CS65c3NKM3p_cs19a+BjBUi+qzb2j8UF7=w@mail.gmail.com>
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Rong will cover this at a high-level during the IETF AQM session tomorrow. Her slides are posted:
?www.ietf.org/proceedings/88/slides/slides-88-aqm-1.pdf<http://www.ietf.org/proceedings/88/slides/slides-88-aqm-1.pdf>
I plan to do a follow-up to the paper you linked to below to give some of the details. Should be ready before IETF89.
-Greg
From: Aaron Wood <woody77@gmail.com<mailto:woody77@gmail.com>>
Date: Thursday, October 31, 2013 at 7:23 AM
To: bloat <bloat@lists.bufferbloat.net<mailto:bloat@lists.bufferbloat.net>>
Subject: Re: [Bloat] [aqm] DOCSIS 3.1 support for AQM
Thanks for the information. I'd be interested in why you have chosen
PIE, e.g., instead of sfq-CoDel. Any pointers to evaluation
reports/results? Last time I saw a presentation on this it seemed
that CoDel was performing quite well.
I think this cablelabs report makes the argument for PIE:
http://www.cablelabs.com/downloads/pubs/Active_Queue_Management_Algorithms_DOCSIS_3_0.pdf
Mostly in that in the heavy traffic scenarios, PIE outperforms sfq_codel, and in general is a tad bit better than codel, with a simpler implementation (I think). Although I think I take issue with the "heavy traffic" model, but I'm guessing (hoping) that it's based on surveys of customer traffic. 60-110 upstream flows seems like a lot. But it's based around a heavy use of BitTorrent, so maybe that's reasonable for some people.
But in all other cases, sfq really blows the doors off of the others.
-Aaron
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prev parent reply other threads:[~2013-11-04 23:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-30 20:13 [Bloat] " Greg White
2013-10-31 8:25 ` [Bloat] [aqm] " Bless, Roland (TM)
2013-10-31 13:23 ` Aaron Wood
2013-10-31 14:32 ` Michael Richardson
2013-11-04 23:20 ` Greg White [this message]
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