From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-x829.google.com (mail-qt1-x829.google.com [IPv6:2607:f8b0:4864:20::829]) (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 BBCB73CB35 for ; Sun, 3 Mar 2019 14:03:19 -0500 (EST) Received: by mail-qt1-x829.google.com with SMTP id y4so2988476qtc.10 for ; Sun, 03 Mar 2019 11:03:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:references:in-reply-to:subject:date:message-id :mime-version:content-transfer-encoding:thread-index :content-language; bh=1Pia+7k4hmfCiwQTnaubuC6kwly+rzbyFrh1JGUeMBY=; b=XBeKf5PSorCILLt7Zy0PkKbwVhnEpmbRwVxd4yLkCy2MZnehhqxXybWqgPDOdyCNpc hfXzTS6xLpDI2pR0gn8FEeL4dN5sfxMkroYI+OC3fhfiJaA80vaO+WxNKlrfDkbLGu3g GsBsqVLZSCxeZUfIbGWv7LXLrRMqif9vqbkW2B2VDkxQUHJoBXBQ5V2TSyDNYaoL4dz8 wAgtMvfLy3ZzPmXraqCAW9qXwmmUDiZIjWSjfdVbnbLDA1TRsl25MqW3Wo1Vlo7ogoL6 6mHyUlQ9Sm6K+3wGlwHW6q0J0+yAs0IeCPTUytBFc14e3pPByKCowUHGDLGjLJ204dTx RPNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:references:in-reply-to:subject:date :message-id:mime-version:content-transfer-encoding:thread-index :content-language; bh=1Pia+7k4hmfCiwQTnaubuC6kwly+rzbyFrh1JGUeMBY=; b=o02stX8l0ex67AVmcV3gswblvChwQ/WYjRNAibc7dh4kIyjeZSEyk0GtBFB6YOiE/K u+GBQ/LcpOeyopjjScjxX2lLtYSiOxjMUUESCDSJbZ9seRGk14UVIZy378gibiCl8Wn9 OblDxrCybwl1kGt4EUKLWzLZita4KEwgj8BQM1XKPaL7NWvhnecCWayGQg65S1jphCS8 lNYcdG1B5OvpM5JXTRBoKOWN2oKI9erRjL3VLo+ZiRfQP7yxwU/TMa7eaJHLRRzsDN8Y tAVu2n+bcxYgOybYMHuNByGEaJh0eOgMLlki4AOw0kaS4erMSgdyf/4BBZfyZ7byqrmW Q3cQ== X-Gm-Message-State: APjAAAVZapq6h0d07jT2chryQGq/z+/Y7lfyynsIQBMso6+Hh3xIXYr/ 5ynsrAwAdJ8nSRTtLC2uz+Zwszll X-Google-Smtp-Source: APXvYqwgOLKNi7JddoF04S5mS5XN+zt/KpyTRsbkKz/WQWar1vMnULgl3g0V+ZxkyjxcqURnrhJF+w== X-Received: by 2002:a0c:d121:: with SMTP id a30mr12199966qvh.0.1551639798853; Sun, 03 Mar 2019 11:03:18 -0800 (PST) Received: from DESKTOPV0UVPFT ([2601:152:4302:ae1f:f45d:109c:aa57:7ea2]) by smtp.gmail.com with ESMTPSA id 132sm2438035qke.0.2019.03.03.11.03.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 03 Mar 2019 11:03:17 -0800 (PST) From: To: "'Pete Heist'" , "'Jonathan Morton'" Cc: "'Sebastian Moeller'" , =?UTF-8?Q?'Toke_H=C3=B8iland-J=C3=B8rgensen_via_Cake?= =?UTF-8?Q?'?= References: <72193310-7502-47B8-9554-7F8F9FA23204@heistp.net> <874l8mn9iy.fsf@toke.dk> <417E17B2-17F7-4106-A92D-C5B5AC41D808@gmx.de> <5CC769AC-AD0C-40E8-BFCA-6AD2A8162FFC@gmail.com> <49A8FB42-EC0B-41B7-8CE4-888DF3C2A88D@gmx.de> <542D3BC3-317A-4F3E-A5B6-16FF678DDFAC@gmail.com> <5C8177FD-2605-4CDD-9AA2-F0E5AF9C779B@heistp.net> <1C81557C-2FD5-4C48-BC17-F9E841D08097@gmail.com> <511C22FF-64A5-46CA-BFB9-4EA350B76122@gmail.com> <9746402E-41EA-43F9-AAE6-53C038EABFFF@heistp.net> In-Reply-To: <9746402E-41EA-43F9-AAE6-53C038EABFFF@heistp.net> Date: Sun, 3 Mar 2019 14:03:20 -0500 Message-ID: <000001d4d1f3$c5599eb0$500cdc10$@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQHOT3KJOXQefYlznSey1L6P5/X0ZwEz6EfZAjK26cYB3eGI/ANHyHLNAo482dABtEgLLwFtdn1oAo5TbNECKy1bLQKLswVlAXBXZn0B9e50wgHrE/6uAbjPNSUCEAL7sQIgH0ZjAawcqqQCjxzPrqTfj6dg Content-Language: en-us Subject: Re: [Cake] Upstream submission of dual-mode fairness patch 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: Sun, 03 Mar 2019 19:03:19 -0000 For the record, I can replicate it now. I also think that this behavior = is expected. There is a work-around but it seems like an awful hack: ----------8<---------- diff --git a/sch_cake.c b/sch_cake.c index 733b897..08e08f4 100644 --- a/sch_cake.c +++ b/sch_cake.c @@ -2216,7 +2216,6 @@ retry: if (q->rate_flags & CAKE_FLAG_INGRESS) { len =3D cake_advance_shaper(q, b, skb, now, true); - flow->deficit -=3D len; b->tin_deficit -=3D len; } flow->dropped++; ----------8<---------- Then the results are: IP1, 1 up: 47.18 mbit/s IP2, 32 up: 46.99 IP1, 32 down: 40.98 IP2, 1 down: 41.34