From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-x22e.google.com (mail-wi0-x22e.google.com [IPv6:2a00:1450:400c:c05::22e]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 75D6A21F1D9 for ; Mon, 11 May 2015 11:05:19 -0700 (PDT) Received: by wiun10 with SMTP id n10so106573858wiu.1 for ; Mon, 11 May 2015 11:05:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=27sirZNfBlBPd+/mADVn/8b58+kKQGuvCAKpxD24Y4w=; b=RvtX6ACJdXIq0V2OQCZnJ+eSO7UgCbDCbB6e5z+F4JowLUpzakC7ohKhfR248Ptpwz uJbN6b33v4ZdoF2C0U/W4SeWZI4FRq+Bod+OQZGWplxkaTKE6MsxfjenbD/9knZfpHTK AsjH2KvYw+sF/hMVS3j7JUZbIsMQr2e0q7CMOKIIx/moSRNmthaEH2rmuIwvFun2cgta dMQRng+Y3BT8RtNN67zkfumzcn/9gKyE8fqzR7LrWwzkQMtKB9JfIkUIzMvCmY2Is5cC 3V6PSY+LDZWXgUqSJ4b32XyML9BdFu/4fiWo/qExldPjcpuub448gXivBLpm1uaxVEpm 2rgg== X-Received: by 10.180.92.198 with SMTP id co6mr22750490wib.34.1431367515486; Mon, 11 May 2015 11:05:15 -0700 (PDT) Received: from volcano.localdomain (host-92-11-216-146.as43234.net. [92.11.216.146]) by mx.google.com with ESMTPSA id m1sm888461wiw.7.2015.05.11.11.05.14 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 May 2015 11:05:14 -0700 (PDT) Message-ID: <5550EF58.203@gmail.com> Date: Mon, 11 May 2015 19:05:12 +0100 From: Alan Jenkins User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Rich Brown References: <554F9BCF.6010609@gmail.com> <55505319.2050909@gmail.com> <88AB2822-91E6-46F1-97AA-E00D01CC6FE7@gmail.com> In-Reply-To: <88AB2822-91E6-46F1-97AA-E00D01CC6FE7@gmail.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: cerowrt-devel Subject: Re: [Cerowrt-devel] [openwrt sqm howto] adsl is confusing - you may end up setting well above 100% of the speed test result! X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 May 2015 18:05:51 -0000 On 11/05/15 14:12, Rich Brown wrote: > HI Alan, > > Thanks for these thoughts. > > On May 11, 2015, at 2:58 AM, Alan Jenkins > wrote: > >> On 11/05/15 02:24, Rich Brown wrote: >>> Hi Alan, >>> >>> Thanks for your note. I noticed the same effect on my DSL link - >>> the SQM up/download speeds in the web GUI wound up at the sync >>> speeds of my modem (the modem's gui to shows those speeds) and >>> the latency stays under control. (I did try setting them higher, >>> but got into bloat trouble...) >>> >>> I decided to move the DSL info into a new section on tuning SQM. >>> See: >>> http://wiki.openwrt.org/doc/howto/sqm?&#a_little_about_tuning_sqm >>> >>> >>> Does this match your understanding? Thanks! That looks even better :). nitpick: "these settings simply tell SQM/fq_codel how to make up for that overhead" The ATM settings don't apply to fq_codel, rather the htb shaper. It might be more technically accurate to write "SQM" instead of "SQM/fq_codel". Alan