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 BBAC021F3F9; Thu, 26 Mar 2015 17:39:25 -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 t2R0dNvn024307; Thu, 26 Mar 2015 16:39:23 -0800 Date: Thu, 26 Mar 2015 17:39:23 -0700 (PDT) From: David Lang X-X-Sender: dlang@asgard.lang.hm To: Isaac Konikoff In-Reply-To: <55147C8A.4030804@candelatech.com> Message-ID: References: <55147C8A.4030804@candelatech.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: codel , cerowrt-devel , bloat Subject: Re: [Bloat] capturing packets and applying qdiscs X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Mar 2015 00:39:55 -0000 On Thu, 26 Mar 2015, Isaac Konikoff wrote: > Hi All, > > Looking for some feedback in my test setup... > > Can you please review my setup and let me know how to improve my application > of the qdiscs? I've been applying manually, but I'm not sure that is the best > method, or if the values really make sense. Sorry if this has been covered ad > nauseum in codel or bloat threads over the past 4+ years... > > I've been capturing packets on a dedicated monitor box using the following > method: > > tshark -i moni1 -w > > where moni1 is ath9k on channel 149 (5745 MHz), width: 40 MHz, center1: 5755 > MHz > > The system under test is a lanforge ath10k ap being driven by another > lanforge system using ath9k clients to associate and run traffic tests. > > The two traffic tests I'm running are: > > 1. netperf-wrapper batch consisting of: tcp_download, tcp_upload, > tcp_bidirectional, rrul, rrul_be and rtt_fair4be on 4 sta's. > > 2. lanforge wifi capacity test using tcp-download incrementing 4 sta's per > minute up to 64 sta's with each iteration attempting 500Mbps download per x > number of sta's. what results are you getting? and what results are you hoping to get to? David Lang > The qdiscs I am using are applied to the virtual ap interface which is the > egress interface for download tests. I also applied the same qdisc to the > ap's eth1 for the few upload tests. Is this sane? > > qdiscs used, deleting each before trying the next: > 1. default pfifo_fast > 2. tc qdisc add dev vap1 root fq_codel > 3. tc qdisc add dev vap1 root fq_codel target 5ms interval 100ms noecn > 4. tc qdisc add dev vap1 root fq_codel limit 2000 target 3ms interval 40ms > noecn > > Any suggestions you have would be helpful. > > Thanks, > Isaac > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat >