From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qc0-x22e.google.com (mail-qc0-x22e.google.com [IPv6:2607:f8b0:400d:c01::22e]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 46A1121F30E for ; Mon, 3 Mar 2014 05:35:17 -0800 (PST) Received: by mail-qc0-f174.google.com with SMTP id x13so3743765qcv.33 for ; Mon, 03 Mar 2014 05:35:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=KOEYNjTFKH5ZsQu/fB4aDlSJwGhtPMXA74tjg1uSL0o=; b=M8ejWAG/Fl0Q/88KL+L06R4ss1NYDdI/U8RSU+Q6U88tLdbAqM/JkAQoKW3nMaByP2 ahbAD1GSo7xBNN9Ur9/962buXDxT82ahgGmAo72scg/iXzxki8S+sUDBO0DoheWc6sfV eWn6jr/qUQL8+jkNywVRJ1MLtDNiYskv3j1KdeWSFWATc/r76MzFqVkbqPhag+t+66au z/7nkhRguIVrmk+gzWHg1StlYoC0NouIZMEt4UK9qt51jqYD2/a6m76V/dNykgXNLM7b fs/Qy55u1TrwsjnqWzOjIn6Qo8VOcV3cEo/7Tpi41aObYkguZdbUvO0x2XTP9LgwSlSM EdMQ== X-Received: by 10.229.89.195 with SMTP id f3mr23332938qcm.14.1393853716015; Mon, 03 Mar 2014 05:35:16 -0800 (PST) Received: from richs-mbp-4004.home.lan (d-ptld-bng1-70-16-218-239.ngn.east.myfairpoint.net. [70.16.218.239]) by mx.google.com with ESMTPSA id b16sm7306611qag.14.2014.03.03.05.35.14 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 03 Mar 2014 05:35:15 -0800 (PST) Content-Type: text/plain; charset=iso-8859-1 Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) From: Rich Brown In-Reply-To: Date: Mon, 3 Mar 2014 08:35:12 -0500 Content-Transfer-Encoding: quoted-printable Message-Id: <6F683BF4-4852-4CA0-B5A8-88210EF8B6DC@gmail.com> References: <5EC471C4-64B9-4D83-AB78-5219E2090886@gmail.com> <78561C59-590A-421E-A92D-7B93B084A6AA@gmail.com> <3C58F2F0-60C0-4EC3-A45F-6895227DC889@gmail.com> <98354D62-A1D2-4DB5-966A-0D9A4EAC5EC4@gmail.com> To: Dave Taht X-Mailer: Apple Mail (2.1874) Cc: cerowrt-devel Subject: Re: [Cerowrt-devel] Better results from CeroWrt 3.10.28-16 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: Mon, 03 Mar 2014 13:35:17 -0000 Dave, Thanks for looking at this. > Wow. Mac TCP is certainly getting stuffed at 768KB up. This sounds like an OSX problem (which I think we always suspected. = *Every* network stack needs to have this worked on.) Does anyone know how to approach Apple about this? I am a registered = Apple developer (me, and my 100,000 closest friends). I don't think I = have any connections there that could rise above the noise. > using a wireshark filter of tcp.stream eq 18 >=20 > it looks like you are iw3, with 8 bytes of overhead on the wire, and > although the MSS gets reduced slightly (not enough!) > the window never gets below 132480. The throughput graph is reasonable > regardless.... but I have to figure out a way to "see" if the RTO > timer is firing or not. Thankfully there's an expert handy this > afternoon. >=20 > I'll setup a duplicate test here on a different OS and see what I = see... I will see if I can get netperf-wrapper installed on my Win7 laptop. = That effort will compete for time with my work week, though. > supplying the rrul *json.gz files would let me do some totals = plots.... https://dl.dropboxusercontent.com/u/21403660/RRUL-json.zip >=20 > On Sun, Mar 2, 2014 at 6:28 PM, Rich Brown = wrote: >> Dave, >>=20 >> I got the wireshark info. = https://dl.dropboxusercontent.com/u/21403660/RRUL-Wireshark.zip >>=20 >> It was my intent to replicate the RRUL -p all_scaled test with both = 'auto' and '30ms' for the egress target. I hope I got it correct - both = the settings and the wireshark capture. >>=20 >> Rich >>=20 >=20 >=20 >=20 > --=20 > Dave T=E4ht >=20 > Fixing bufferbloat with cerowrt: = http://www.teklibre.com/cerowrt/subscribe.html