From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qg0-x22d.google.com (mail-qg0-x22d.google.com [IPv6:2607:f8b0:400d:c04::22d]) (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 58BA83CC5A for ; Thu, 7 Apr 2016 09:58:46 -0400 (EDT) Received: by mail-qg0-x22d.google.com with SMTP id c6so63517230qga.1 for ; Thu, 07 Apr 2016 06:58:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=to:from:subject:message-id:date:user-agent:mime-version :content-transfer-encoding; bh=gYC/uznu0Ae8sSvrMcuR+tNi38fqWu7Gn/+HZ34RZMY=; b=aQwLiAv28YqwD6iRESDNrlqNg99/A4wCbnPkZ/aOTL+0foZ6dILshAOd3UKVcvtDGf Ef/ikPWG+hAifc9drePFBsDw3dCGSpfJjpFrNU4Oj6FLl4y8Aikuj1xUKDMvAuLccS+C ddmpYw7oJoZiH8jHunNkoFUCEW8IXJF3Z+17YcU+ZAF0Su5v+1EbpBJoiw1Z0nzK3FDt 1/MOuHe/c+s72PFidhsvasWW8qdKXQhvHKue2yX3h6NGvG+StV6MAWIy+AN4+F1tqrhb t/NPlwOlpPqSnLtRG0UimF1Rlt879myHArLW3Jhx0ifxyuHSHQRRaJMPj8nVd8Vv+Dr4 3a5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-transfer-encoding; bh=gYC/uznu0Ae8sSvrMcuR+tNi38fqWu7Gn/+HZ34RZMY=; b=XzkQhQ4/Nv9KcZBLuKV/6AdNWjLFYhXMLRKhChF5hRbbLygr6ReeXqJIyOxSHdIvMR JG6+TFFe2m1tk8EPFTYwiTJF0T7F1/PSpBmbiQbX91NSV6KW8XNaocO3tKddlZVbuvm5 mEqvSKgeUe+MYL38lrM4lFTFw6+nFHBhFEk4lnwNKdkGtSdckbrAqFVRoCEMLALLalyu oFqo7fDM2X8VoYhFQwJbVikA53FOqjS6u2Rkf20k9iEy4cqOE3m65pQPX8ppX0uzWMB0 Fbi6XbKnvTh66J881CTfq7bXx3KLYJOP1nTjvEXFF+0YVFoHLdLyab9ajxNaErD/Y7zf slfg== X-Gm-Message-State: AD7BkJLoHJUNESRV2NXfKRqJTsLwjJJgFQVNR40KuTqPwzlWnc1z8FFsCmaoHJg2+64hYw== X-Received: by 10.140.105.198 with SMTP id c64mr3879312qgf.94.1460037525802; Thu, 07 Apr 2016 06:58:45 -0700 (PDT) Received: from [192.168.1.156] (c-24-61-11-132.hsd1.ma.comcast.net. [24.61.11.132]) by smtp.googlemail.com with ESMTPSA id a207sm3452240qkb.28.2016.04.07.06.58.44 for (version=TLSv1/SSLv3 cipher=OTHER); Thu, 07 Apr 2016 06:58:44 -0700 (PDT) To: "cerowrt-devel@lists.bufferbloat.net" From: Richard Smith Message-ID: <57066793.5050608@gmail.com> Date: Thu, 7 Apr 2016 09:58:43 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Subject: [Cerowrt-devel] Linksys wrt1900acs rrul traces X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 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: Thu, 07 Apr 2016 13:58:46 -0000 A while ago I mentioned that I purchased a Linksys wrt1900acs and I was going to do some comparisons of speed/rrul for stock firmware and stuff running sqm. It took a while to happen but I finally got it done. I was stalled for a long time because for a while OpenWRT was not complete for this router. It would boot but you could not (easily) return to the factory firmware as updates via the OpenWRT web interface did not work. Command line updates still worked though periodically I would build dd head and see if it got fixed. Finally one weekend I decided to dig in and figure out what was going wrong and discovered that someone else beat me to it and it all was working now. The following flent rrul runs were run here on my local Gbit network (pretty quiet) using with OpenWrt Designated Driver r49051 / LuCI Master (git-16.081.38806-6b9a743) + Cake installed. Cake installed via the instructions here: http://www.bufferbloat.net/projects/codel/wiki/Cake#Installing-CAKE-out-of-tree-on-OpenWrt-rough-instructions For these tests I had the inbound and outbound limits set to 975000 kbps. 975000 was somewhat arbitrary. I wanted it below 1Gbps enough that I could be sure it was the router as the limit but yet fast enough that I would be able to see the peak transfer rates. Test setup is: Laptop<-->wrt1900acs<--->Gbit Switch<--->Netperf server Prior to running the tests I did trial runs without the wrt1900acs in the chain to verify every thing worked at Gbit speeds. I ran the rrul test for each of the SQM settings at least 5 times. For layer cake and piece of cake each had a run with results that were way off from the previous run. I'm assuming this is some yet to be fixed issue and so I ran it 1 more time so that there were 5 runs with similar results. All the raw files are in this tarball: https://drive.google.com/file/d/0B-P0wCbNmKvAWmRUSzNMdXpUOFE/view?usp=sharing Hope this is helpful. I'll be happy to run any additional tests if someone wants more. -- Richard A. Smith