From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f47.google.com (mail-wg0-f47.google.com [74.125.82.47]) (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 A4A85200B33 for ; Sat, 7 Apr 2012 10:18:49 -0700 (PDT) Received: by wgbge7 with SMTP id ge7so2438734wgb.28 for ; Sat, 07 Apr 2012 10:18:47 -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=aBGb9kjDZGEEM9f+QF9xVHHoe0x9rhETaHZq+fQoUN8=; b=m7R8RUuLhywIMR5tBFg2FRFdd9BB5LkHaKHM6cAVnYB9JcCZS3bVhDqG8Yj5QR9k83 h7iKIIvYXA1046uCQ06tFvysQ/PRd0Y0I0wSjPhXbAbv1wwmMpKTvfCIkGPO02BGpBCT kxFePNZNtZis3IE24xnNHkEkc4NYvUFHcH/sRUuK3Er83qxtNmzuFgnOKsAmcvWOjBmr C3ko1zb9lzUlsI32tRc/Fc4QW2B2i1jTJY8ctIUoWZNPNWzCBSFF+2EEubjLqIp7+gSt ltCAWO/ux+wwd9/cmX1SVA3gTDnPR7K2V39EZ4nq8YIkLL/QQrwEPn+l/wrY+Q40q5Bz A/kA== MIME-Version: 1.0 Received: by 10.216.138.135 with SMTP id a7mr1105096wej.19.1333819127689; Sat, 07 Apr 2012 10:18:47 -0700 (PDT) Received: by 10.223.127.194 with HTTP; Sat, 7 Apr 2012 10:18:47 -0700 (PDT) In-Reply-To: References: <20120406213725.GA12641@uio.no> <20120406222138.GB12641@uio.no> <1333811327.30705.4.camel@edumazet-laptop> <20120407153548.GC21452@uio.no> Date: Sat, 7 Apr 2012 10:18:47 -0700 Message-ID: From: Dave Taht To: Jonathan Morton Content-Type: text/plain; charset=ISO-8859-1 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 17:18:50 -0000 On Sat, Apr 7, 2012 at 10:10 AM, Jonathan Morton wr= ote: > > On 7 Apr, 2012, at 6:35 pm, 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've got this running over here: > > 12Mbps ADSL2+ in Finland (not at all far from Norway), via a standard mod= em-router rather than my usual Linux system. =A0The LAN segment is entirely= wired full-duplex Ethernet. =A0The receiver is a Core i7 Windows PC runnin= g the latest stable VLC, so it's not short of ability to play what it recei= ves. > > And it's dropping more frames than it's playing. The difference between the udp stream and the tcp stream are amazing. Perhaps steinar can send you a udp stream for comparison. I just took a capture of both the tcp stream and the udp stream simultaneously for about 5 minutes. The tcp stream was nearly useless, the udp one excellent... the captures are up at: http://huchra.bufferbloat.net/~d/captures/gathering/ The tcp stream was interestingly periodic... > > =A0- Jonathan Morton > --=20 Dave T=E4ht SKYPE: davetaht US Tel: 1-239-829-5608 http://www.bufferbloat.net