From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) (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 D2F393CB35 for ; Sun, 3 Mar 2019 11:07:36 -0500 (EST) Received: by mail-wr1-x42b.google.com with SMTP id w6so2850503wrs.4 for ; Sun, 03 Mar 2019 08:07:36 -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=ITkRDba+HGzim42AvzkPkSh6Hub8PCwI4e1cJlm07nI=; b=jNUb9SP+2Gh047gsGLWnFsXPX1TdWPrgfvM5J7blf6nDgEDv/g7JsI3q4AC0PGv67l IwBZ+rhY4sgHryI7cUhYYiU+V7AxflKBOlCmPP4k2NX9+CeQxwnVZ+h6tuTssDK0uQZQ J4bCRFpcgbDrTBBUSsJgmdKQI0FXOrT0Mq6nuDy6T2aaiiULoZ47CuoNZ531ax8lpVPk MHtn5oR2JyXyPXFc5/yN/aXOoMQS+JEp3j3TWUMd4ykVzBEQ61vYFfzcz6RZ2Jm/kLU4 kUurKrc99MMKi/qDjJwbQm+i8jqgkj5a/MCN3Q4ZVLa67+lMM0XGK3ZpvgMycyxsAILo Aqjw== 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=ITkRDba+HGzim42AvzkPkSh6Hub8PCwI4e1cJlm07nI=; b=lvn3wFGlbanYSndIyr4WmQjwCDzdae0x8YjeURDJpkdiUpGmtCGGt4lkOGPBaJB8WY OOfXktQjhfWg2W3zTUgS4JOM9bId2v4ANS1eTZujmlVV68dULetb7R770dcVwi3TqK+4 pf8fU8NnEiT1uy+BGeF/ch3PrwqI+iHmDN0FCUlJDD64qTau0kSg6TmDMv6bc5ghstxw D2nPZ6XzOxwhZRc0npO5bKzNwPyR1j/Y1hIlxzyRQi3vH/1gk8TuI3Nk33s0Rym89sD+ BhfeodrIFt66Df6bHvfHXjoXlKvkQ52CQ3Uz1RqnrG6UoyC0O6Mnp73/M2ei5WppLmOB +Vnw== X-Gm-Message-State: APjAAAX94VOjNWJJXiYP3MFX28zJdZID5C7mnccxecWyv6GQ74oULnl7 XVMJcvzgYN353msbulXSH2IufA== X-Google-Smtp-Source: APXvYqyLoi0NoDOnnHO1fli8FWxPbp4vgVT96anykK+ulE+KL8iDYhrJH1DimEzuo6l5F0dXO3I+DA== X-Received: by 2002:adf:fc12:: with SMTP id i18mr9729550wrr.201.1551629255972; Sun, 03 Mar 2019 08:07:35 -0800 (PST) Received: from tron.luk.heistp.net (h-1169.lbcfree.net. [185.193.85.130]) by smtp.gmail.com with ESMTPSA id c17sm7128341wrs.17.2019.03.03.08.07.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 03 Mar 2019 08:07:35 -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: <542D3BC3-317A-4F3E-A5B6-16FF678DDFAC@gmail.com> Date: Sun, 3 Mar 2019 17:07:33 +0100 Cc: Sebastian Moeller , =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen_via_Cake?= , George Amanakis Content-Transfer-Encoding: quoted-printable Message-Id: <5C8177FD-2605-4CDD-9AA2-F0E5AF9C779B@heistp.net> 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> To: Jonathan Morton X-Mailer: Apple Mail (2.3445.9.1) 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 16:07:37 -0000 > On Mar 3, 2019, at 1:13 PM, Jonathan Morton = wrote: >=20 > So I'm not entirely sure what's happening here, but at least the = asymmetry isn't too bad; it's achieving significantly better = host-fairness than a pure flow-fair system would. Yeah, it=E2=80=99s not a big problem, and IMO it=E2=80=99s in the = preferable direction where the 1-flow IP =E2=80=9Cwins=E2=80=9D over the = N-flow IP. It=E2=80=99s just a matter of either flushing out or = explaining the asymmetry, if possible. Does it say anything to you that enabling ECN makes the asymmetry go = away?