From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com [IPv6:2a00:1450:4864:20::42c]) (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 A41803CB6C for ; Mon, 7 Jan 2019 10:07:41 -0500 (EST) Received: by mail-wr1-x42c.google.com with SMTP id x10so745172wrs.8 for ; Mon, 07 Jan 2019 07:07:41 -0800 (PST) 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=iWJy0n2y3+ierrcwASxfMWkXXiSgJbFJ7xpIWPo3Kl0=; b=F5ep4vWGw5dHc4y45OAriq2h5UGZCe5hCeZpUzGgQfdANp0iYBSjcjxzZC5B/7AOuF vwJ1YxCKyEbFMoYsEXOR11D9ihpBtD0kR3e/MBF6lhG/7tqHgiNrm6Rc448KeiNIJAE9 gVCsJDPjE/gc4QK0+5t1MPQBw698LtQZr6QKUHuC2ah0lvLCvU5xXzZtW+lSx2vERnRd /DYSTEJuCgP690iMIbOtmMlP0Rf+vPrJ2rVaMEUtZtYeDtGFhR4q9JCZfDRudZghOENu aokdLkJgcfz7KwGvHTDMeMi/Wuue0fjqnF4Np+6QtmtXooejJv+lL5DhiIOy7pwMIiQT qCNA== 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=iWJy0n2y3+ierrcwASxfMWkXXiSgJbFJ7xpIWPo3Kl0=; b=Z7ZEbQ/6dme/OnzY3D5k6HiEwspIsuzFh44fr4w1hz3UV3T+YbmAsAdwe43/sYRrUY pps0gnHAn6DOeL1r4KuIjOdnrNVvCciOWDr14gb2+VcPbUpY0GmktQcILiXRbHFz3he4 YVwJvV4obBNmNPAqlAAv2AvmEw9zjlNwNerUKBRZ7zhiNhIFpHryOHZ7hSC40PtNYzPr FTS2ymqJtHfjhCPhBHdMKqsurX2bPUoDmRaM1pRt0R+pC9X8uqv6HOaQuyhZ/PDOOWCv LpMqAU9dgdTYmB1ssg2r13ojVs1PIQIUcRxJHwFB+YfUhDcUdN6vigtG1pIcvhtJHUVx 6lIQ== X-Gm-Message-State: AJcUukcNxJxs4EcJrQXOpEyNrW8rWPM7wZqLM/zeZi4hnU0vSmEPf3+N ojpgSPsR2sORz0rLeAAlQyw46FgeO0M= X-Google-Smtp-Source: ALg8bN4M5w/Gqnt+Hw2ej1/Xvk/OvTdLvbPxSwtuY+GL97vMqelr9hfLJrC4DNj8TkwCtD2c6WqbIg== X-Received: by 2002:adf:8421:: with SMTP id 30mr54130211wrf.153.1546873660727; Mon, 07 Jan 2019 07:07:40 -0800 (PST) Received: from tron.luk.heistp.net (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id g9sm7107074wmg.44.2019.01.07.07.07.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Jan 2019 07:07:39 -0800 (PST) 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: <87sgy4wvqq.fsf@toke.dk> Date: Mon, 7 Jan 2019 16:07:37 +0100 Cc: Cake List Content-Transfer-Encoding: quoted-printable Message-Id: <4FB89A19-314E-4B45-BEF3-83DB04A90C08@heistp.net> References: <87wonjxvss.fsf@toke.dk> <0077CC34-490F-4D76-82D3-BE37B27F2E1C@heistp.net> <49A6DCF8-BE98-47F4-9C66-6B4288390A58@heistp.net> <87tvinxos7.fsf@toke.dk> <87r2drxnal.fsf@toke.dk> <45D43135-318B-48AD-B09B-69BBB034CE12@heistp.net> <87o98vxm57.fsf@toke.dk> <797FCC60-0048-4EF6-80BC-19707E9173FB@heistp.net> <87lg3zxdyr.fsf@toke.dk> <87imz2yiet.fsf@toke.dk> <252DC221-7024-4834-9757-96335372A5A7@heistp.net> <87ftu6yc2y.fsf@toke.dk> <11DD478A-E61D-4D62-92B3-30B9A9A9572E@heistp.net> <874laly07v.fsf@toke.dk> <75345B18-E171-44C8-B059-9F6A6A663CAC@heistp.net> <87sgy4wvqq.fsf@toke.dk> To: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Cake] cake infinite loop(?) with hfsc on one-armed router 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: Mon, 07 Jan 2019 15:07:41 -0000 Sorry, that=E2=80=99s without the patch, will give that a try when I = have a chance and post the results, probably tomorrow... > On Jan 7, 2019, at 12:30 PM, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >=20 > Pete Heist writes: >=20 >>> On Jan 6, 2019, at 9:56 PM, Toke H=C3=B8iland-J=C3=B8rgensen = wrote: >>>=20 >>> Pete Heist writes: >>>=20 >>>> Lastly, is using cake as a leaf to htb risky until a fix is made? = I=E2=80=99ve >>>> been doing that for a while without any apparent issues, though = I=E2=80=99m >>>> hesitating now to try that in a production environment. >>>=20 >>> Hmm, that's a good question. I would expect so; but I would also = expect >>> the issue to show up pretty much straight away, so if you haven't = hit it >>> yet, I may be wrong. I'll do some more digging... Should probably = also >>> try to replicate all this stuff on my own machine :) >>=20 >>=20 >> Ok, after what I=E2=80=99m seeing on my APU1 tests on 3.16.7, I=E2=80=99= m definitely >> not putting split GSO into production. I just turned it on and off >> three times and here=E2=80=99s what I got: >>=20 >> Split GSO on: >>=20 >> https://www.heistp.net/downloads/htb_split_gso/htb_cake_split_gso.svg >> = https://www.heistp.net/downloads/htb_split_gso/htb_cake_split_gso2.svg >> = https://www.heistp.net/downloads/htb_split_gso/htb_cake_split_gso3.svg >>=20 >> Split GSO off: >>=20 >> = https://www.heistp.net/downloads/htb_split_gso/htb_cake_no_split_gso.svg >> = https://www.heistp.net/downloads/htb_split_gso/htb_cake_no_split_gso2.svg >> = https://www.heistp.net/downloads/htb_split_gso/htb_cake_no_split_gso3.svg >>=20 >> I=E2=80=99ve seen these square waves before with htb and wondered = where they >> came from, and I think we may finally have an answer! What manner of >> thing causes this I don=E2=80=99t know, but there=E2=80=99s a chance = you may end up >> finding out=E2=80=A6 :) >=20 > Is this without the patch to CAKE that adjusts the qlen? And have you > tried running with that patch (with HTB)? >=20 > -Toke