From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-x234.google.com (mail-wm0-x234.google.com [IPv6:2a00:1450:400c:c09::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 190643CB3A for ; Thu, 23 Aug 2018 07:38:04 -0400 (EDT) Received: by mail-wm0-x234.google.com with SMTP id i134-v6so1856701wmf.0 for ; Thu, 23 Aug 2018 04:38:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heistp.net; s=google; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=cUY3t1dDT15uIOXzfhgPODbGBn+iV01DSNzoGTpzo3Q=; b=YoTh62qZU2M+9ugx1E0JajYAFnD90PhFAqnjR39KVoNrkEuor9CwVqSeqG/qjeTLbX 0d5UzU7gpM1IPgkq5UEDxH3CK6m2C+zUOlp+RGAurYcih3K4KtMfODl8/SG9eWdGWEpy RgMPwko022PxnBjOIdlCE2csaEjfoDEh9cY20Lh8mJNdWiGAvPS3jo60yGAEJyPXJAij AT4khmCOpBwukJtEyTD4yGIhi1vvpab12sUnnugOSmsHh9GrC07LTgVgaUGDFP9csVm4 hqv/sd1gQscoUt/a3GYAFpr9H2A7jBdzcVENqC3vn3ifqrJsxQpRrFPrenm/l8eK29Aj hvGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=cUY3t1dDT15uIOXzfhgPODbGBn+iV01DSNzoGTpzo3Q=; b=RwyahGLaSHk0e6N+Hwmbyw0VD/P+puEAuaRLe8FP2JhsUAwrjlqA4PA0FiXobzioHS QhLo00JkX9T6UCLnmxJb/jZIow3ruQTqM/oAUcda/GZ6/igHiuOqa6S6UHsqZkxXjGE6 /UgoKLhTIF1mKvX00ymJ+EzJBOQ7dRQXuywHg0F8R0oycx35E44M+FWwdv/6iCyp/KkJ FDNpmdv1Bdi4emAvacIvEPYT/Xl8+NcXAedTzzuEeYao1wP/Qqy1HZewW8IZY8QelHiI l2EvSKZmrpC4EgUKQXgow+My37LZcZEjgmU3p+0TDNrSuemiWdN4/+mWdPKu87vZjK8R OOSA== X-Gm-Message-State: APzg51CRrlsuV09/SsSzfMcpPGVc6RPZqDMUuS5pebDQFCpbG/tfvsJZ 86yoTbDqJmAp5sn779Jmu9Q23Q== X-Google-Smtp-Source: ANB0VdbMINwI7XLTW/q/RQ/1m6TRJHlEQy1euxmWhg2rzyFPou7+bwhDID4i7Qje4F3O6g5YLPdAGA== X-Received: by 2002:a1c:ae8d:: with SMTP id x135-v6mr5059332wme.20.1535024283178; Thu, 23 Aug 2018 04:38:03 -0700 (PDT) Received: from tron.lt2.drhleny.cz ([185.15.109.151]) by smtp.gmail.com with ESMTPSA id q135-v6sm8236384wmd.4.2018.08.23.04.38.02 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 23 Aug 2018 04:38:02 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) From: Pete Heist In-Reply-To: Date: Thu, 23 Aug 2018 13:38:01 +0200 Cc: Dave Taht , cerowrt-devel@lists.bufferbloat.net, bloat Content-Transfer-Encoding: quoted-printable Message-Id: <16572FAA-B5FC-4287-A6A3-D3AAE92C36F3@heistp.net> References: <999D19F8-7E27-47CB-BC14-06193CC40943@heistp.net> To: Mikael Abrahamsson X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Bloat] beating the drum for BQL X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Aug 2018 11:38:04 -0000 > On Aug 23, 2018, at 12:51 PM, Mikael Abrahamsson = wrote: >=20 > On Thu, 23 Aug 2018, Pete Heist wrote: >=20 >> Thanks for sharing, this is really useful, raising awareness where it = matters. Quite a bit of content... :) >>=20 >> Ubiquiti needs some work getting this into more of their products = (EdgeMAX in particular). A good time to lobby for this might be, well a = couple months ago, as they=E2=80=99re producing alpha builds for their = upcoming 2.0 release with kernel 4.9 and new Cavium/Mediatek/Octeon = SDKs. I just asked about the status in the EdgeRouter Beta forum, in = case it finds the right eyes before the release: >>=20 >> https://community.ubnt.com/t5/EdgeRouter-Beta/BQL-support/m-p/2466657 = >>=20 >> = https://community.ubnt.com/t5/EdgeMAX-Beta-Blog/New-EdgeRouter-firmware-2-= 0-0-alpha-2-has-been-released/ba-p/2414938 = >=20 > My only experience with these devices is the Edgerouter 3/5/X, and = they have very low performance if you disable offloads (which you need = to do to enable AQM) and run everything in CPU, around 100 megabit/s of = uni-directional traffic. I have a similar experience with my ER-X- with soft rate limiting (the = only thing allowed in the UI), 120-140Mbit is the upper limit. > Do they have other platforms where this would actually matter? One can add fq_codel or Cake from the command line (many are doing so), = and some may be using 100Mbit Ethernet. In that case, BQL could be = useful even on these devices when run at line rate, without soft rate = limiting. I=E2=80=99m also assuming that their higher-end products are capable of = fq_codel at 1 Gbit, and that some may use those devices at line rate. = Any time this is the case, even if only during bursts, BQL would be = useful, I suppose...=