From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181]) (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 9D131201044 for ; Sat, 7 Apr 2012 08:52:52 -0700 (PDT) Received: by wibhr17 with SMTP id hr17so1142288wib.10 for ; Sat, 07 Apr 2012 08:52:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=TJOt8U/A53iHgjei3VK/LItGU9LjSRyGG9mMyLt/lto=; b=T/+TqvWdJMk2YAJ7pvc11KLoUIkNQV8ZGRpHqNngLINP1gZ6CxSmRZNUqQD0llSfuT hmfE9r5XNQC2T5WZJHw8+swMWEFJhOt9XHWLXzYmB9TeM6bwIzOTOxx1yPeL7R2zQYnr mNTKQ/qB9FQCKT0mCRZ9seVNYW1BnkU7k1CUhDLPhsk9kQfxeOGctathWjrwmKnQuwyc qQ9g3CiFzekkjta8d11lKdB3jH+FCqRVPrcC2p1emPHjHkM7eEH4Q9UX/7cM75NnaSfI edybbzLpx9+O8J1RESzyfaxDPZd9LcjvKPrZYbbBnt8OCUMhhBoRGdtUqyuT9N+cWBz9 RQhg== MIME-Version: 1.0 Received: by 10.180.88.199 with SMTP id bi7mr3825775wib.12.1333813970552; Sat, 07 Apr 2012 08:52:50 -0700 (PDT) Received: by 10.223.127.194 with HTTP; Sat, 7 Apr 2012 08:52:50 -0700 (PDT) In-Reply-To: <20120407153548.GC21452@uio.no> References: <20120406213725.GA12641@uio.no> <20120406222138.GB12641@uio.no> <1333811327.30705.4.camel@edumazet-laptop> <20120407153548.GC21452@uio.no> Date: Sat, 7 Apr 2012 08:52:50 -0700 Message-ID: From: Dave Taht To: "Steinar H. Gunderson" Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Cc: bloat@lists.bufferbloat.net Subject: Re: [Bloat] Best practices for paced TCP on Linux? 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, 07 Apr 2012 15:52:53 -0000 On Sat, Apr 7, 2012 at 8:35 AM, Steinar H. Gunderson wrote: > On Sat, Apr 07, 2012 at 08:25:18AM -0700, Dave Taht wrote: >> The test HD tcp stream is up at >> >> http://cesur.tg12.gathering.org:9094/ > > That's the SD stream. http://stream.tg12.gathering.org/ has HD etc. > >> I'd like to look into what percentage of the failures I observed >> happened on the wifi hop vs the ethernet gateway >> since then many changes where made, and I'm low on sleep. (what do >> geeks do on a friday night?) > > FWIW, most of the users complaining don't have wifi in the mix at all. > >> I don't know if they are still trying sfqred or qfq in production - >> they worked! - but had little effect (as is to be kind of expected >> with the instantaneous queue length being so short and bandwidth so >> high on their first and nearest hops....) > > The one on cesur.tg12 has sfqred + my hacked VLC to do TCP pacing. kernel 3.3? please send: tc -s qdisc show dev the_device cd /sys/class/net/the_device/queues/tx-0/byte_queue_limits cat inflight cat limit > The one on stream.tg12 has the oddest =93shaping=94 in a while; the 10Gig= E is > terminated in a Cisco 4948E which then has a 8x1GigE trunk out. We hope t= his > will smooth out the worst bursts a bit. > > /* Steinar */ > -- > Homepage: http://www.sesse.net/ --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://www.bufferbloat.net