From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gateway30.websitewelcome.com (gateway30.websitewelcome.com [192.185.179.30]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 560EA3CB35 for ; Mon, 10 Aug 2020 11:08:52 -0400 (EDT) Received: from cm12.websitewelcome.com (cm12.websitewelcome.com [100.42.49.8]) by gateway30.websitewelcome.com (Postfix) with ESMTP id 783C013F3B for ; Mon, 10 Aug 2020 10:08:51 -0500 (CDT) Received: from box5867.bluehost.com ([162.241.24.113]) by cmsmtp with SMTP id 59PvkxgAbn9FW59PvkgiiZ; Mon, 10 Aug 2020 10:08:51 -0500 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tomh.org; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version :Date:Message-ID:From:References:Cc:To:Subject:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=k6RWHHtULxr7Q3+gXoVRVbQ/9FEwwMp5HKh1o9a+BaY=; b=ia7JvE7rsMGzUZ8dHNZIrht7sM +mNIXUO9EkEAaVoC8XLgAIqNSGoCj8LWR/cHIIfAKqeCt3l5WTe88NHKCnX/8VnBo9ALAF0kRwmuc WYxab0d4ffDPap76vMkQUpKoLZMphcUIf1mNzGnw+OENxHiFnpmsGnTdSKQKsZx8u4WPz2dirabi0 zpZjF/Ioiof8xZnNKsaQjFC4+e/LiXLigMIB1kFaRWxBgDLLswGT/qj+cOOrS9gIdE9XpUVZDVm0f BYNfGvjVXRanYGQsMEfKBkMkzBS+LVZx4KF2WfVL3rpumVjwDkJJBN0UP2DChB/igsRQG/mUtHb5D fTyWk8YA==; Received: from c-73-19-103-93.hsd1.wa.comcast.net ([73.19.103.93]:36610 helo=[192.168.168.110]) by box5867.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1k59Pv-0031Sy-14; Mon, 10 Aug 2020 09:08:51 -0600 To: Daniel Sterling , davecb@spamcop.net Cc: Jonathan Morton , "dave.collier-brown@indexexchange.com" , bloat References: <225a9c89-ac76-f21e-1450-5deeb3cd23eb@tomh.org> <04949cee-c4de-900c-e1b1-4b1f227933eb@rogers.com> From: Tom Henderson Message-ID: Date: Mon, 10 Aug 2020 08:08:49 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5867.bluehost.com X-AntiAbuse: Original Domain - lists.bufferbloat.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tomh.org X-BWhitelist: no X-Source-IP: 73.19.103.93 X-Source-L: No X-Exim-ID: 1k59Pv-0031Sy-14 X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: c-73-19-103-93.hsd1.wa.comcast.net ([192.168.168.110]) [73.19.103.93]:36610 X-Source-Auth: tomhorg X-Email-Count: 5 X-Source-Cap: dG9taG9yZzt0b21ob3JnO2JveDU4NjcuYmx1ZWhvc3QuY29t X-Local-Domain: yes Subject: Re: [Bloat] How about a topical LWN article on demonstrating the real-world goodness of CAKE? X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Aug 2020 15:08:52 -0000 > so after much tweaking, I've got cake set to 40mbit down, 20mbit up, > enforced by two cakes (one for each NIC). that's fairly low -- Thanks for sharing this configuration experience, but it leads me back to a question I have about best current practice for deployment.  Can CAKE/SQM handle dynamic Wi-Fi bandwidth due to Wi-Fi rate control selecting lower MCS to increase range, or does it rely on first getting the Wi-Fi deployed so that it has strong signal everywhere, and then finding a CAKE shaping rate that shaves off a few Mb/s from the highest capacity MCS so that the bottleneck always lands on the CAKE AQM?  It seems like the deployment that you shared with a separate router will require a predictable Wi-Fi rate, but I am wondering more about the case in which CAKE is deployed on the AP. - Tom