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Subject: Re: [Codel] fq_codel_drop vs a udp flood
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 02 May 2016 09:14:29 -0700
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To: Roman Yeryomin <leroi.lists@gmail.com>
Cc: Jonathan Morton <chromatix99@gmail.com>, "codel@lists.bufferbloat.net" <codel@lists.bufferbloat.net>, Dave Taht <dave.taht@gmail.com>, ath10k <ath10k@lists.infradead.org>, make-wifi-fast@lists.bufferbloat.net

On Mon, 2016-05-02 at 18:43 +0300, Roman Yeryomin wrote:
> On 2 May 2016 at 18:07, Eric Dumazet <eric.dumazet@gmail.com> wrote:
> > On Mon, 2016-05-02 at 17:18 +0300, Roman Yeryomin wrote:
> >
> >> Imagine you are a video operator, have MacBook Pro, gigabit LAN and
> >> NAS on ethernet side. You would want to get maximum speed. And
> >> fq_codel just dropped it down to 550Mbps for TCP (instead of 750Mbps)
> >> and to 30Mbps for UDP (instead of 900Mbps).
> >> So, again, it looks broken to me.
> >
> > Can you show us your qdisc config ?
> 
> Which build do you want? Before it broke or after?
> 


I want to check your qdisc configuration, the one that you used and
where you had fq_codel performance issues

tc -s -d qdisc



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