From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lennier.cc.vt.edu (lennier.cc.vt.edu [198.82.162.213]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id B9FD921F36F; Fri, 16 May 2014 07:53:37 -0700 (PDT) Received: from mr3.cc.vt.edu (mr3.cc.vt.edu [198.82.141.68]) by lennier.cc.vt.edu (8.13.8/8.13.8) with ESMTP id s4GEr57J010958; Fri, 16 May 2014 10:53:05 -0400 Received: from auth1.smtp.vt.edu (auth1.smtp.vt.edu [198.82.161.152] (may be forged)) by mr3.cc.vt.edu (8.14.4/8.14.4) with ESMTP id s4GEr02P005971; Fri, 16 May 2014 10:53:05 -0400 Received: from turing-police.cc.vt.edu ([IPv6:2001:468:c80:2103:84c:71a8:9d69:8e78]) (authenticated bits=0) by auth1.smtp.vt.edu (8.14.4/8.14.4) with ESMTP id s4GEr0dX022565 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 16 May 2014 10:53:00 -0400 X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.6+dev To: dpreed@reed.com In-Reply-To: Your message of "Thu, 15 May 2014 16:32:55 -0400." <1400185975.95298344@apps.rackspace.com> From: Valdis.Kletnieks@vt.edu References: <3583FA43-EF5B-42D7-A79C-54C87AA514D5@gmail.com> <5373EEFF.5030407@pollere.com> <1400161663.82913275@apps.rackspace.com> <5374EC39.7040902@pollere.com> <1400185975.95298344@apps.rackspace.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1400251979_2015P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Fri, 16 May 2014 10:52:59 -0400 Message-ID: <15152.1400251979@turing-police.cc.vt.edu> X-Spam-Status: No, score=-0.7 required=5.0 tests=RP_MATCHES_RCVD autolearn=disabled version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mr3.cc.vt.edu Cc: Kathleen Nichols , cerowrt-devel , bloat Subject: Re: [Cerowrt-devel] [Bloat] fq_codel is two years old 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: Fri, 16 May 2014 14:53:38 -0000 --==_Exmh_1400251979_2015P Content-Type: text/plain; charset=us-ascii On Thu, 15 May 2014 16:32:55 -0400, dpreed@reed.com said: > And in the end of the day, the problem is congestion, which is very > non-linear. There is almost no congestion at almost all places in the Internet > at any particular time. You can't fix congestion locally - you have to slow > down the sources across all of the edge of the Internet, quickly. There's a second very important point that somebody mentioned on the NANOG list a while ago: If the local router/net/link/whatever isn't congested, QoS cannot do anything to improve life for anybody. If there *is* congestion, QoS can only improve your service to the normal uncongested state - and it can *only do so by making somebody else's experience suck more*.... --==_Exmh_1400251979_2015P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Exmh version 2.5 07/13/2001 iQIVAwUBU3YmSwdmEQWDXROgAQJ2MQ/+K7Ksg9E992kHm5YaL/Ru+JgcFDLQHe3v vj1tFiaiKadhohrgQSie0JEuGsRZe28BZvmyMh1XNnebj0HRLpJaq1akGLENtNTA /MUeoORQPi8Pkt7r9tXyzbmhcbcHr9iG3kySvxkpq4C/GD11+Gj2LXvLfrjDS0tP 9xjpXvM5PrfcJ/yJh/jnCS332wVMEFAUcXw7SliTWy4tart68B4W5Qlf/Eu5XD+l ixeZBm+oFwfi301Lpd0HG4Yui5yUTH2S7ys7x/LEz41bpAulwdZbDoq27uEXfUXc S7z0QmqGR1ylwMXLsRzlwyDmvsTBQ5oI6Om2KjsyhLVFXy4XvknYgTL0+TP6Yh72 eZPuLBzeFxAcdSd37r1NHooSmIcAore7KMI0YA+mKdgp8Oij1Ff7iqZYle56Ittd trJmjJkU2JrL9Btv0fZgL1IWSfpXfsZdGPorrAho+xlDB4k/iLCLZYJ7bk5+m7Ta hckSUennmNdHCLufmnbD6wLSQ1mTGJcdSJyoCVtzZJyOiZNPsfOaoPyvuDIdocCC BUqBr3xyvNnzWS/cjiFL+D5LSXfpW6Tc0MkcH1WkZdps2rYL9WH6MpX3kSoUoo04 W6LwMGAcTi/Hm+Pzv+OBYoLI3b+mDjc4agr35eNBezU5xzo1Pf5L5AMKOi9U3O7V Ot3xX0HTtoE= =KOa6 -----END PGP SIGNATURE----- --==_Exmh_1400251979_2015P--