From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id D07CE21FB0F for ; Fri, 10 Jul 2015 08:48:08 -0700 (PDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 5E8162034F; Fri, 10 Jul 2015 11:48:06 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute6.internal (MEProxy); Fri, 10 Jul 2015 11:48:06 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=imap.cc; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-sasl-enc :x-sasl-enc; s=mesmtp; bh=suHF+SERD2Ck3uR7HxHaOPADoHQ=; b=Xw1qAO n+/sRbbGNLu3e2E+QBo7tcBy5Zvg3iSSnCX+7VKlgwGS3+7JvN4njCtjoLldbiYj xANRH3DK2K+QIcPqaAHc3UyN9nj243KOr5ja3qXa3NAVKV1EnumbG3QdEjF2CoTw RbjLmLfklW82LpcsYxWqXYiTwZZOhAuyTjH6A= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-sasl-enc:x-sasl-enc; s=smtpout; bh=suHF+SERD2Ck3uR 7HxHaOPADoHQ=; b=WtoxFcbxnxpMQvAVSIuI34+nf0dNeRVjSKKNjkzmrW0xLEn 5BArpIVJKD9NBAo1ER+atTKaG3jDy7wTG6q434MyWibA6lDg/clVotzoW+jqBWW1 KlbW+z/+qDL2QX19Y/aeHTapMKf9iMWX6KihMFdM3e9Tt9IF5p4NvcgzOSqc= X-Sasl-enc: 4LLKhYJF8qWxJqMHrKARXAmJoKSrllFPkdpjWxX+POMj 1436543286 Received: from [192.168.42.126] (host-89-240-237-91.as13285.net [89.240.237.91]) by mail.messagingengine.com (Postfix) with ESMTPA id D4168C00024; Fri, 10 Jul 2015 11:48:05 -0400 (EDT) To: Alan Jenkins , cerowrt-devel@lists.bufferbloat.net References: <559FA8D4.2030305@imap.cc> <559FDC38.9010400@imap.cc> <559FE294.60801@gmail.com> From: Fred Stratton Message-ID: <559FE934.5000403@imap.cc> Date: Fri, 10 Jul 2015 16:48:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.0.1 MIME-Version: 1.0 In-Reply-To: <559FE294.60801@gmail.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Cerowrt-devel] Correct syntax for cake commands and atm issues. 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: Fri, 10 Jul 2015 15:48:37 -0000 I have yet to undertake formal testing. I moved from using a Buffalo WMBR-G300 running Barrier Breaker to a bridged device when I broke the former tying to install Homenet. I omitted to recraft the cake script I was using to incorporate the correct interface, now pppoe-wan, and was unaware of the error until today, a fortnight later. I am therefore not expecting significant improvements. On 10/07/15 16:19, Alan Jenkins wrote: > > I'm glad to hear there's a working version (even if it's not in the > current build :). > > Do you have measurable improvements with overhead configured (v.s. > unconfigured)? > > I've used netperfrunner from CeroWrtScripts, e.g. > > sh netperfrunner.sh -H netperf-eu.bufferbloat.net -p $ISP_ROUTER > > I believe accounting for overhead helps on this two-way test, because > a) it saturates the uplink b) about half that bandwidth is tiny ack > packets (depending on bandwidth asymmetry). And small packets have > proportionally high overhead. > > (But it seems to only make a small difference for me, which always > surprises Seb). > > Alan > > On 10/07/15 15:52, Fred Stratton wrote: >> >> You are absolutely correct. >> >> I tried both a numeric overhead value, and alternatively 'pppoe-vcmux' >> and 'ether-fcs' in the build I crafted based on r46006, which is lupin >> undeclared version 2. Everything works as stated. >> >> On lupin undeclared version 4, the current release based on r46117, the >> values were not recognised. >> >> Thank you. >> >> I had cake running on a Lantiq ADSL gateway running the same r46006 >> build. Unfortunately this was bricked by attempts to get homenet >> working, so I have nothing to report about gateway usage at present. >> >> >> >> On 10/07/15 13:57, Jonathan Morton wrote: >>> >>> You're already using correct syntax - I've written it to be quite >>> lenient and use sensible defaults for missing information. There are >>> several sets of keywords and parameters which are mutually orthogonal, >>> and don't depend on each other, so "besteffort" has nothing to do with >>> "overhead" or "atm". >>> >>> What's probably happening is that you're using a slightly old version >>> of the cake kernel module which lacks the overhead parameter entirely, >>> but a more up to date tc which does support it. We've seen this >>> combination crop up ourselves recently. >>> >>> - Jonathan Morton >>> >> >