From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wj0-x241.google.com (mail-wj0-x241.google.com [IPv6:2a00:1450:400c:c01::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 96B9D3B2A4; Fri, 9 Dec 2016 06:40:02 -0500 (EST) Received: by mail-wj0-x241.google.com with SMTP id j10so2059457wjb.3; Fri, 09 Dec 2016 03:40:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=8Ps6z0Ixdaawf/3cIpsNij3nIPKtqqoM+okwHtQ48co=; b=mH9qKsVYdTzCwseG3Br4vSnJImr5Wn/5NLVwuMbyn9XSCTxZprhDuwPsAo4IBWz+5Z Z6e8SiW8d4tEfcysTTDTrLmWdhGhUMZUWbgRFDt+D2p9Mp72CEqNK6n9Wh9lV7VznTVC JT39NvScu2Or9GnHX3h6eDemnjMoNYioBuFsqd8CWTr2MR7v5yudzbImpT5AdLdLyQVh 2Y3SVaIzG6wo7jpWIuAVjjESQi++bOaY7/I3Z7d/0najjHtH6vNpXIR7kQZjOQTnckak 1SHlmJsnsx+Mo48oFf1fJYjZZ+Eo0lbZpcwcqRyWzcnHnFlhZ7UN7baNufcegeA4b26J 1HfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=8Ps6z0Ixdaawf/3cIpsNij3nIPKtqqoM+okwHtQ48co=; b=FEAJLWMf2HAQ937PMW0TrnICMptrFisKbqVyHZc+PfzKoLOXTzjXqcgs+WhK/JeyAD bjW8rc3roJn2lWFq3QMq/MLMv9qy3ukzsAMuLPeLugPix915ndh7BVdUOgOoYl9tqgTo qEkK6d7jfTY0EU9hXpGtD/idr9xnxTP9QCZHtKnXYW05J4Lw1zyqJ7uSMkKWbXZAL+j9 s4k+5ZOpgF4+bqvk+JJsF98EcryGchl2ZRNscCzQCCf9QNHfIYba0d8m1NyUM80m/rnl WwlSuHCqi/CV//BlJ3bLwyBWTRYWD5yW6F6jww6JlP8hLku6lJQsSzddaThy4/Jb3s6I 1Pmg== X-Gm-Message-State: AKaTC03/BPX9UuG3JiS7q7tO1CBlT3NpiDYawA/063P3fJ4zhXf5Fgw2XgP0jMXhdpNq3w== X-Received: by 10.25.166.207 with SMTP id p198mr28078692lfe.83.1481283601600; Fri, 09 Dec 2016 03:40:01 -0800 (PST) Received: from [192.168.100.13] (37-33-82-144.bb.dnainternet.fi. [37.33.82.144]) by smtp.gmail.com with ESMTPSA id 34sm6456255lja.25.2016.12.09.03.40.00 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 09 Dec 2016 03:40:00 -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: <9BA0F7D8-5A25-4033-A101-38BF001B74EB@gmail.com> Date: Fri, 9 Dec 2016 13:39:58 +0200 Cc: codel@lists.bufferbloat.net, make-wifi-fast@lists.bufferbloat.net Content-Transfer-Encoding: quoted-printable Message-Id: References: <9BA0F7D8-5A25-4033-A101-38BF001B74EB@gmail.com> To: Phineas Gage X-Mailer: Apple Mail (2.3124) Subject: Re: [Make-wifi-fast] Software rate limiting with fq_codel for point-to-point WiFi backhaul links X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Dec 2016 11:40:02 -0000 > On 9 Dec, 2016, at 12:12, Phineas Gage wrote: >=20 > Given the half-duplex nature of 802.11 WiFi, is it possible to use = fq_codel with software rate limiting on separate hardware from the WiFi = radio, while still allowing at or near the full WiFi link rate? Given that you can=E2=80=99t reliably predict the actual wifi throughput = from userspace, and that it will vary over time due to external = interference and path attenuation, that would be difficult. However, you *can* loop both the ingress and egress traffic through a = common IFB interface, and shape that - using Cake, even. That sounds = like what you=E2=80=99re trying to experiment with. - Jonathan Morton