From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ee0-f54.google.com (mail-ee0-f54.google.com [74.125.83.54]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 4E35D21F0E7 for ; Sat, 9 Feb 2013 01:52:39 -0800 (PST) Received: by mail-ee0-f54.google.com with SMTP id c41so2362179eek.27 for ; Sat, 09 Feb 2013 01:52:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:mime-version:sender:from:date:x-google-sender-auth :message-id:subject:to:content-type; bh=C99bYJLRYs1IJ5UTEyqNdkavp4k44kq68sUjM6/eaIg=; b=D0I/Uh2XMjRFX8P2wQaIUY3IhRYrs8h0WONeGdEurqNPC0Ls+qAuy77TODUcFjFAPW lJU0MA5nUqjzzDLHTpAb03kU/oOPkS77brNT5QBILjIO4M1EVOirnz/liA+4S5/oXfYp EENDGPCngb0+fGxoZQSZKDbVsDAOQX4AEh3/hju8NB38rXjlhqButLuVX6lbSon5ylfg +o2Suz9xHAG0/JKLLjLiAxvxOHzyCQkJBM5jIWRsNdNXm6MV7x9tabjtJmWdrxOIRmO2 WAj/yHcgR7lM/t/NC/ySswoNVnLL7/YcyAJ81z9g9IiVtpRlzaTBr58/+2rDggCbMysY E/AQ== X-Received: by 10.14.174.73 with SMTP id w49mr26060983eel.17.1360403556760; Sat, 09 Feb 2013 01:52:36 -0800 (PST) MIME-Version: 1.0 Sender: jeroen.balduyck@gmail.com Received: by 10.14.209.193 with HTTP; Sat, 9 Feb 2013 01:52:06 -0800 (PST) From: Forums1000 Date: Sat, 9 Feb 2013 10:52:06 +0100 X-Google-Sender-Auth: txhU8WXIj6YcTqrMFkDPKuL8GyI Message-ID: To: bloat@lists.bufferbloat.net Content-Type: multipart/alternative; boundary=047d7b6042f0c07b1904d547a292 Subject: [Bloat] I am unable to pinpoint the source of bufferbloat 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: Sat, 09 Feb 2013 09:52:39 -0000 --047d7b6042f0c07b1904d547a292 Content-Type: text/plain; charset=ISO-8859-1 Hi everyone, Can anyone give some tips on how to diagnose the sources of bufferbloat? According to the Netalyzr test at http://netalyzr.icsi.berkeley.edu/, I have 550ms of upload bufferbloat. I tried all kinds of stuff on my Windows 7 laptop: - For the Intel(R) 82567LF Gigabit Network Connection, I put receive and transmit buffers to the lowest value of 80 (80 bytes? 80 packets? I don't know). I also disabled interrupt moderation. Result? Still 550ms. - Then I connected my laptop directly to my cable modem, bypassing my Mikrotik 450G router. Result? Still 550ms of bufferbloat. - Then I put a 100 megabit switch between the cable modem an the laptop (as both cable modem and Intel NIC are gigabit). Result? Still 550ms of upload bufferbloat. I'm out of ideas now. It seems I can't do anything at all to lower bufferbloat. Or the Netalyzr test is broken?:-) many thanks for your advice, Jeroen --047d7b6042f0c07b1904d547a292 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi everyone,

Can anyone give some tips on how to diagnose the source= s of bufferbloat? According to the Netalyzr test at http://netalyzr.icsi.berkeley.edu/, I have 550m= s of upload bufferbloat. I tried all kinds of stuff on my Windows 7 laptop:=

- For the Intel(R) 82567LF Gigabit Network Connection, I put receive an= d transmit buffers to the lowest value of 80 (80 bytes? 80 packets? I don&#= 39;t know). I also disabled interrupt moderation.
Result? Still 550ms.<= br> - Then I connected my laptop directly to my cable modem, bypassing my Mikro= tik 450G router. Result? Still 550ms of bufferbloat.
- Then I put a 100= megabit switch between the cable modem an the laptop (as both cable modem = and Intel NIC are gigabit). Result? Still 550ms of upload bufferbloat.

I'm out of ideas now. It seems I can't do anything at all to lo= wer bufferbloat. Or the Netalyzr test is broken?:-)

many thanks for = your advice,
Jeroen

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