From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bifrost.lang.hm (lang.hm [66.167.227.134]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 7958A3B260; Mon, 2 May 2016 15:47:22 -0400 (EDT) Received: from asgard.lang.hm (asgard.lang.hm [10.0.0.100]) by bifrost.lang.hm (8.13.4/8.13.4/Debian-3) with ESMTP id u42Jl66o005638; Mon, 2 May 2016 12:47:06 -0700 Date: Mon, 2 May 2016 12:47:06 -0700 (PDT) From: David Lang X-X-Sender: dlang@asgard.lang.hm To: Roman Yeryomin cc: dpreed@reed.com, make-wifi-fast@lists.bufferbloat.net, Ben Greear , "codel@lists.bufferbloat.net" , ath10k In-Reply-To: Message-ID: References: <57258F41.8040600@candelatech.com> <1462114043.512818296@apps.rackspace.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Subject: Re: [Make-wifi-fast] fq_codel_drop vs a udp flood X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 May 2016 19:47:22 -0000 On Mon, 2 May 2016, Roman Yeryomin wrote: > On 1 May 2016 at 17:47, wrote: >> Maybe I missed something, but why is it important to optimize for a UDP flood? > > We don't need to optimize it to UDP but UDP is used e.g. by torrents > to achieve higher throughput and used a lot in general. > And, again, in this case TCP is broken too (750Mbps down to 550), so > it's not like Dave is saying that UDP test is broken, fq_codel is just > too hungry for CPU while I wouldn't do it via wifi, syslog to/from relay systems can result in a lot of UDP traffic that could look like a flood. David Lang