From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x241.google.com (mail-lf0-x241.google.com [IPv6:2a00:1450:4010:c07::241]) (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 530583B2A3 for ; Wed, 22 Feb 2017 05:24:52 -0500 (EST) Received: by mail-lf0-x241.google.com with SMTP id p197so621085lfp.3 for ; Wed, 22 Feb 2017 02:24:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=Yvexi1+6+bNcRcRqc5YAmRfTSXYnzt6Rh6/gjawkEvU=; b=ZYZXWXn7jhWE/iFJsJO9twbO5zUEkg3p95eCBq+BYx2DYPr+yLvi7AOnH4J/5MU+wu sssTRV6skOhX9rU22fStYl+jx0SObzNRrgDqgw0KUH2uqnu593qcR3skz3oD7wS4pr9l dSSYPcFwt8QVHOJcLhykJ1Jvbevvkhfb6a5T2JKflwWOx6PJpkPhSDAJ22nr71SrNTBw rs5/rUf29J1ggE+zCCryNT67PWCWZQ8nd/VkEICy5jxhJWkshrqOtlIS1vO7U5EMO8Eb ZYJlNU4+ttFFPD2uAz96erjCNJboILZqbPnD+gD9kC02ETr2EF8r891E4IXDV/wcwJ7G NkPQ== 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=Yvexi1+6+bNcRcRqc5YAmRfTSXYnzt6Rh6/gjawkEvU=; b=dtFp5lEoVfUCNgAfc+4q2aGCkAtMzlpiKw+u8zIFTvF/t2uGtJ8H83PRtQBWeq6BBT 9QbHwMjnvmfMn/Wjgd2ujeXNU0yOCfysFiYurauQMDVb1lYR+1W6O3tGaVgDE8tWlaH/ aPVZYoU4gd6DZrfsTw0cu72DpaEjPBafKvV+3HkMULxL+m4Xw8KpWGa4z7gJwY53hRd6 kIsEJ9LWvg6kfIx4GpWRTX4iTgT03jeisYX/DeAk/ud8a+V/eGO55UvpHRtqF7s17Idg cT1oia7YGas2SNjkZCkMQBys8hW3dx+BVPVO49p8OmJ7fVtXQDMKuJySdBj6ztpnZf+Z gt1w== X-Gm-Message-State: AMke39ktSFLnUVRiyPqMSTS1/dG/JxZj7ZQukD0O+p6hqilTO6Ks1ZgyLu0XqLRk/v22Gg== X-Received: by 10.46.15.18 with SMTP id 18mr8173370ljp.109.1487759091152; Wed, 22 Feb 2017 02:24:51 -0800 (PST) Received: from [192.168.100.16] (37-219-206-78.nat.bb.dnainternet.fi. [37.219.206.78]) by smtp.gmail.com with ESMTPSA id f9sm6907844ljb.20.2017.02.22.02.24.50 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 22 Feb 2017 02:24:50 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Jonathan Morton In-Reply-To: Date: Wed, 22 Feb 2017 12:24:46 +0200 Cc: cake@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Pete Heist X-Mailer: Apple Mail (2.3124) Subject: Re: [Cake] diffserv3 tin 2 target 50% of interval? X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Feb 2017 10:24:52 -0000 > ... =E2=80=98interval' should generally remain at 100ms and that = =E2=80=98target' should be computed at around 5-10% of interval, and = preferably closer to 5%. > Is there a justification for setting the interval outside the = guidelines suggested by CoDel=E2=80=99s authors? The interval is reduced on Tin 2 because it is intended for = latency-sensitive traffic, which merits a more aggressive AQM response = than for best-effort traffic, which tends to be more = throughput-sensitive. This has the happy side-effect of giving an = additional incentive to not use latency-sensitive DSCPs for bulk = traffic. It looks like you still aren=E2=80=99t using the latest version of tc, = as that identifies the three tins as =E2=80=9CBulk=E2=80=9D, =E2=80=9CBest= Effort=E2=80=9D, and =E2=80=9CVoice=E2=80=9D, rather than numerically. - Jonathan Morton