From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-x831.google.com (mail-qt1-x831.google.com [IPv6:2607:f8b0:4864:20::831]) (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 102263CB35 for ; Thu, 3 Jan 2019 21:08:04 -0500 (EST) Received: by mail-qt1-x831.google.com with SMTP id k12so39029589qtf.7 for ; Thu, 03 Jan 2019 18:08:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:subject:from:to:cc:date:in-reply-to:references :user-agent:mime-version:content-transfer-encoding; bh=heAnAx7wtW8KSwXtate6It6nTtx6l9aMhz6qSoouclY=; b=Oe2uU0FIhzHt/G+UpbTuH4t1xDk/VcMy81fv1404DHtAWMEkocx5dccxVLIQKBXHx2 7/XjAYJb6Otth/aAauoLuWQMVbidZiaML7ujSKs0jFLiSSOAQhwu4I61/dUelEqPnHnA QMByOhP9Ol4N2cUrA2GpZzUWpkFzVu0Qqw4OdwNw7dnLejRb5fBiJo1EaE2HMbADR5eg TIEJ4nnJBFc9yMA7eoEzBK/5ttRMMOXJ/Hn0QlEoxCckzzBD0PxMQFqgDnViUW8HD6HV AmLv50x3qrI+k1uQDC0ONIOZAHuC4AylgvYOGcBIf8mMIBBMZ2+AhvfgEqX7L+h+ybJT Lj7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:user-agent:mime-version:content-transfer-encoding; bh=heAnAx7wtW8KSwXtate6It6nTtx6l9aMhz6qSoouclY=; b=KgRNa8ygfuuYkY+roOeBINO82h7C3awg7rjDhgs2Taskn32HZL1t6bC4EhkZhxFWFi 8gAdHlHOAjbasTc2Maejhl9gZwe4FI8kWAoqe737TPPemEZBUIAK5rCsvizniLRWGnen NkqzcRgEF9LkmLZ2gJ4c49sdVJiL035lB/RJVKL6H5xbMBi3CsejIK5Q2RM5lagHVCQB RIKbHL+rgPRQYh5f7opZf1JYb308lNkY7ESmw/obGyTI0Pj/kZkNAOO6WN+u/XNfatzK U74fdH0Ba0FgPH355Z2YGZVsfM+agPg6bBMp/o+RqkkP44dUbU2ZXhOBtpvC8UlxLeWf f6uQ== X-Gm-Message-State: AA+aEWa/+Qf6hH3FgQ/2h9NPe6FgU9Mu3sy6fr4IVZ+eYv7AHL4PbsWi py2B+vv9MzoW2BVkgzo0wRllYlFz X-Google-Smtp-Source: AFSGD/XwjD7lTo4mEfdTFV41UOy1C00af8rzISx9S2RMLbq0blb43b/WPQzxqJ88jBcfLdzYefT+Lg== X-Received: by 2002:ac8:7308:: with SMTP id x8mr49254324qto.284.1546567683577; Thu, 03 Jan 2019 18:08:03 -0800 (PST) Received: from x3200.lan ([2601:152:4302:ae1f::16e]) by smtp.googlemail.com with ESMTPSA id m6sm12422266qkm.30.2019.01.03.18.08.02 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 03 Jan 2019 18:08:02 -0800 (PST) Message-ID: From: Georgios Amanakis To: Pete Heist , Toke =?ISO-8859-1?Q?H=F8iland-J=F8rgensen?= Cc: Cake List Date: Thu, 03 Jan 2019 21:08:02 -0500 In-Reply-To: References: <8F9DE6A8-8614-46A8-9E9B-7B7E4CC7414F@heistp.net> <43a8ddec5beb962c53fe828363ecc839832de2c0.camel@gmail.com> <3650A136-97A6-43F5-ADD3-B94A19775379@gmail.com> <99C93851-3539-4CB6-BED1-193B56658486@heistp.net> <87imz6xatw.fsf@toke.dk> <87ftu9yj1n.fsf@toke.dk> <316524A2-FEB5-46DC-AC96-4E1AED27695A@heistp.net> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.30.3 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [Cake] dual-src/dsthost unfairness, only with bi-directional traffic 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: Fri, 04 Jan 2019 02:08:04 -0000 On Thu, 2019-01-03 at 23:06 +0100, Pete Heist wrote: > Both have cake at 100mbit only on egress, with dual-srchost on client > and dual-dsthost on server. With this setup (and probably previous > ones, I just didn’t test it this way), bi-directional fairness with > these flow counts works: > > IP1 8-flow TCP up: 46.4 > IP2 1-flow TCP up: 47.3 > IP1 8-flow TCP down: 46.8 > IP2 1-flow TCP down: 46.7 > > but with the original flow counts reported it’s still similarly > imbalanced as before: > > IP1 8-flow TCP up: 82.9 > IP2 1-flow TCP up: 10.9 > IP1 1-flow TCP down: 10.8 > IP2 8-flow TCP down: 83.3 I just tested on archlinux, latest 4.20 on the router, iproute2 4.19.0, using flent 1.2.2/netserver in a setup similar to Pete's: client 1,2 <----> router <----> server The results are the same with Pete's.