From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bifrost.lang.hm (mail.lang.hm [64.81.33.126]) (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 37B8A21F603 for ; Fri, 23 Oct 2015 10:15:21 -0700 (PDT) Received: from asgard.lang.hm (asgard.lang.hm [10.0.0.100]) by bifrost.lang.hm (8.13.4/8.13.4/Debian-3) with ESMTP id t9NHFJlj018013; Fri, 23 Oct 2015 10:15:19 -0700 Date: Fri, 23 Oct 2015 10:15:19 -0700 (PDT) From: David Lang X-X-Sender: dlang@asgard.lang.hm To: Dave Taht In-Reply-To: Message-ID: References: <562A5BE5.6010101@gmail.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="680960-42958495-1445620519=:13331" Cc: "cerowrt-devel@lists.bufferbloat.net" Subject: Re: [Cerowrt-devel] Problems testing sqm 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, 23 Oct 2015 17:15:44 -0000 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --680960-42958495-1445620519=:13331 Content-Type: TEXT/PLAIN; charset=utf-8; format=flowed Content-Transfer-Encoding: 8BIT with the wrt1900ACS, the WAN ethernet is connected to a switch before connecting to the wire. I believe that this causes some issues with the sqm default setup (or is it with the fq_codel?) David Lang On Fri, 23 Oct 2015, Dave Taht wrote: > you are most likely applying the qdisc to the wrong ethernet device or > ethernet vlan. > Dave Täht > I just lost five years of my life to making wifi better. And, now... > the FCC wants to make my work, illegal for people to install. > https://www.gofundme.com/savewifi > > > On Fri, Oct 23, 2015 at 6:10 PM, Richard Smith wrote: >> I have a shiny new Linksys WRT1900ACS to test. >> >> I thought it might be nice to start with some comparisons of factory >> firmware vs OpenWRT with sqm enabled. >> >> So I built and installed an openwrt trunk but the results were very >> non-impressive. Rrul test reported mulit-seconds of latency and it was >> equally non-impressive with sqm enabled or disabled. So I assumed that sqm >> in trunk on this device must not work yet. Then I wondered how well sqm in >> trunk was tested and that perhaps its broken for all devices. >> >> So I tested openwrt trunk on my Netgear 3700v2 and saw the same results. >> Then I tried openwrt cc and got the same results. >> >> Finally, I went to the reference implementation: cerowrt 3.10.50-1 on my >> 3700v2. Same results. >> >> So at this point I'm thinking there's a PEBKAC issue and I'm not really >> turning it on. >> >> Here's my enable procedure: >> >> Go the sqm tab in the GUI and set egress and ingress to 10000, set the >> interface to the upstream interface, click enable, click save and apply. >> Everything else is left at default. ie fq_codel and simple.qos. >> >> I've also tried a reboot after enabling those settings and then gone back to >> the gui to verify they were still set. >> >> My test setup: >> >> Laptop<--1000BaseT-->DUT<--1000baseT-->Server >> >> I run netperf-wrapper -H Server -l 30 rrul and look at the 'totals' or 'all' >> plot. >> >> If I run the above with this setup. >> >> Laptop<--1000baseT-->Server >> >> Then I get the expected 800-900Mbit/s with latencies < 15ms. So I don't >> think there's a problem with my test infrastructure. >> >> What am I missing and or what's the next step in figuring out whats wrong? >> >> -- >> Richard A. Smith >> _______________________________________________ >> Cerowrt-devel mailing list >> Cerowrt-devel@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/cerowrt-devel > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel --680960-42958495-1445620519=:13331--