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From: Jonathan Morton <chromatix99@gmail.com>
To: George Amanakis <gamanakis@gmail.com>
Cc: Cake List <cake@lists.bufferbloat.net>
Subject: Re: [Cake] commit 0d8f30 breaks ingress mode
Date: Sat, 6 Jan 2018 21:45:35 +0200	[thread overview]
Message-ID: <6251DCBA-411F-4AC8-9EF1-7B2273F4308A@gmail.com> (raw)
In-Reply-To: <1514184493.8140.4.camel@gmail.com>

> On 25 Dec, 2017, at 8:48 am, George Amanakis <gamanakis@gmail.com> wrote:
> 
> I modified rrul_be_nflows.conf to classify all generated traffic as
> CS1. Ran a simulation where one client downloads simultaneously from 4
> servers, 24 flows each. The latency is huge ~1000ms in this case. 

I've just pushed a fix for this one.  It's as simple as using the same mtu_time threshold for all tins.

This does mean that low-rate tins (such as Bulk) will be controlled to potentially unsustainably-low BDPs when competing against higher-rate tins.  However, that will only affect goodput in the low-rate tins (and when ECN is not being used by the endpoints involved).  I think that's an unavoidable tradeoff, and controlling latency is more important in this scenario.

 - Jonathan Morton


      parent reply	other threads:[~2018-01-06 19:45 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-25  5:35 George Amanakis
2017-12-25  6:48 ` George Amanakis
2017-12-25  7:10   ` Jonathan Morton
2018-01-06 19:45   ` Jonathan Morton [this message]

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