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Date: Tue, 3 May 2016 10:37:29 -0700
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From: Dave Taht <dave.taht@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: "Agarwal, Anil" <Anil.Agarwal@viasat.com>,
 Jonathan Morton <chromatix99@gmail.com>, 
 "make-wifi-fast@lists.bufferbloat.net" <make-wifi-fast@lists.bufferbloat.net>, 
 "codel@lists.bufferbloat.net" <codel@lists.bufferbloat.net>,
 ath10k <ath10k@lists.infradead.org>
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Subject: Re: [Codel] fq_codel_drop vs a udp flood
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Thus far this batch drop patch is testing out beautifully. Under a
900Mbit flood going into 100Mbit on the pcengines apu2,  cpu usage for
ksoftirqd now doesn't crack 10%, where before (under
pie,pfifo,fq_codel,cake & the prior fq_codel) it went to 88% and
ultimately bad things happened, like losing routability.

I've had it running for hours and I hardly notice it's there.

Performance for the normal cc controlled and/or sparse flows is
unaffected, aside from the uncontrolled flows eating their percentage
of the link.

Nice work. Thx. This should go into -stable.

https://patchwork.ozlabs.org/patch/617307/

Sigh. The RFC is past last call...