From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ia0-x235.google.com (ia-in-x0235.1e100.net [IPv6:2607:f8b0:4001:c02::235]) (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 7B70C201B88 for ; Sat, 9 Feb 2013 08:34:51 -0800 (PST) Received: by mail-ia0-f181.google.com with SMTP id l29so1567888iag.40 for ; Sat, 09 Feb 2013 08:34:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:cc:content-type; bh=4992YvGQsB8K+mwkVv76u3AYEFDbaQyMU51JEpzlWws=; b=p8fP8rzw+qW94q4jhZYPiA6f6ajFNz/yZ0cSqoPxrpEqoTikruRy65k+BWUirKKTz9 XVR4zAMe1MYs5cW0izqACnAZjz065/zcpOBRoasKfw927P1RjwX3R7pBYjnPhKFAnPTj 1PpdhZtaLFjXP5Aaidgp7ImXk9cYFKSm5bUYSFjXgV66PtwwaBVGb/qialOBPN0HS2zl NKYSNCr3VWVS9XmgetwJck6T6PF/ajB7pouoLyfbQlzQnXKKw5i3wvNGmG/lCTGGc40w Q7AEs7WDan+60SwAHucOWyVHTtDtXknOfXOPwfk9j+xzLP6nY9ZUC+DwRINAyBwutIne MYew== MIME-Version: 1.0 X-Received: by 10.50.187.225 with SMTP id fv1mr7997819igc.96.1360427690546; Sat, 09 Feb 2013 08:34:50 -0800 (PST) Received: by 10.64.135.39 with HTTP; Sat, 9 Feb 2013 08:34:50 -0800 (PST) In-Reply-To: References: Date: Sat, 9 Feb 2013 08:34:50 -0800 Message-ID: From: Dave Taht To: Forums1000 Content-Type: multipart/alternative; boundary=14dae9340fe13cd4aa04d54d4165 Cc: bloat@lists.bufferbloat.net Subject: Re: [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 16:34:51 -0000 --14dae9340fe13cd4aa04d54d4165 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable It's in your cablemodem. Put a rate limiter between your cablemodem and the universe and you'll be able to see it, and control it) (in my case that's cerowrt's simple_qos script, but most of that's in openwrt now) On Sat, Feb 9, 2013 at 1:52 AM, Forums1000 wrote: > 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 Window= s > 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 > > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat > > --=20 Dave T=E4ht Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html --14dae9340fe13cd4aa04d54d4165 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable It's in your cablemodem.

Put a rate limiter between your cablem= odem and the universe and you'll be able to see it, and control it)
=
(in my case that's cerowrt's simple_qos script, but most of tha= t's in openwrt now)

On Sat, Feb 9, 2013 at 1:52 AM, Forums1000 <= span dir=3D"ltr"><forums1000@gmail.com> wrote:
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 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 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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Bloat mailing list
Bloat@lists.bufferbloat.net<= /a>
= https://lists.bufferbloat.net/listinfo/bloat




--
Dave T=E4ht

= Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscrib= e.html=20 --14dae9340fe13cd4aa04d54d4165--