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 1A77A21F293; Fri, 27 Mar 2015 12:24:04 -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 t2RJNuES030230; Fri, 27 Mar 2015 11:23:56 -0800 Date: Fri, 27 Mar 2015 12:23:56 -0700 (PDT) From: David Lang X-X-Sender: dlang@asgard.lang.hm To: Isaac Konikoff In-Reply-To: <5515A8DF.8050902@candelatech.com> Message-ID: References: <55147C8A.4030804@candelatech.com> <55157250.6030208@gmail.com> <5515A8DF.8050902@candelatech.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: MULTIPART/Mixed; BOUNDARY="===============1744057231616903510==" Cc: codel , bloat , Aaron Wood , cerowrt-devel , Richard Smith Subject: Re: [Codel] [Bloat] [Cerowrt-devel] capturing packets and applying qdiscs X-BeenThere: codel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: CoDel AQM discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Mar 2015 19:24:33 -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. --===============1744057231616903510== Content-Type: TEXT/Plain; format=flowed; charset=US-ASCII I gathered a bunch of stats from the Scale conference this year http://lang.hm/scale/2015/stats/ this includes very frequent dumps of transmission speed data per MAC address per AP David Lang On Fri, 27 Mar 2015, Isaac Konikoff wrote: > Thanks for pointing out horst. > > I've been trying wireshark io graphs such as: > retry comparison: wlan.fc.retry==0 (line) to wlan.fc.retry==1 (impulse) > beacon delays: wlan.fc.type_subtype==0x08 AVG frame.time_delta_displayed > > I've uploaded my pcap files, netperf-wrapper results and lanforge script > reports which have some aggregate graphs below all of the pie charts. The > pcap files with 64sta in the name correspond to the script reports. > > candelatech.com/downloads/wifi-reports/trial1 > > I'll upload more once I try the qdisc suggestions and I'll generate > comparison plots. > > Isaac > > On 03/27/2015 10:21 AM, Aaron Wood wrote: >> >> >> On Fri, Mar 27, 2015 at 8:08 AM, Richard Smith > > wrote: >> >> Using horst I've discovered that the major reason our WiFi network >> sucks is because 90% of the packets are sent at the 6mbit rate. >> Most of the rest show up in the 12 and 24mbit zone with a tiny >> fraction of them using the higher MCS rates. >> >> Trying to couple the radiotap info with the packet decryption to >> discover the sources of those low-bit rate packets is where I've >> been running into difficulty. I can see the what but I haven't >> had much luck on the why. >> >> I totally agree with you that tools other than wireshark for >> analyzing this seem to be non-existent. >> >> >> Using the following filter in Wireshark should get you all that 6Mbps >> traffic: >> >> radiotap.datarate == 6 >> >> Then it's pretty easy to dig into what those are (by wifi frame-type, at >> least). At my network, that's mostly broadcast traffic (AP beacons and >> whatnot), as the corporate wifi has been set to use that rate as the >> broadcast rate. >> >> without capturing the WPA exchange, the contents of the data frames can't >> be seen, of course. >> >> -Aaron > > > --===============1744057231616903510== Content-Type: TEXT/PLAIN; CHARSET=us-ascii Content-ID: Content-Description: Content-Disposition: INLINE _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat --===============1744057231616903510==--