From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qg0-x22f.google.com (mail-qg0-x22f.google.com [IPv6:2607:f8b0:400d:c04::22f]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C1FFD21F402 for ; Fri, 17 Oct 2014 16:21:13 -0700 (PDT) Received: by mail-qg0-f47.google.com with SMTP id i50so1288442qgf.34 for ; Fri, 17 Oct 2014 16:21:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:content-type:date:subject:to:message-id:mime-version; bh=snOIJFiKVuKW49Z9npg0Mbz+1MsWP3y2/YHrkbc/b88=; b=RtDec+w2rHK617kwkj3DUgXwbORXwyf2lPpWjistfLJz75B3DJzA2mnw/d0a8LHoDn zWuRqaVJ1s98nsShPc5lYY+ZZL3iZTAJAcfewPO1w9+PzWQmS/XmJD9OeuWqf4pPETyu H84Qn4bc/9zi0zvDt0fwORCxpbJKOdKEgqftqVoh/wInpWSmWlcUXBEsO7xPT2KZSjSf ud9EJgrkTPTwdfNPVgXSng3ThMSXWSsAiUdpuIBjYRIZmoeUB3fX5xcAeA+SSDhORGdY faBCpbIm9geHikQC998CsYXfwLsah7/vQksgMxAtmvww0QnIIPn8lQRwDG7wOSsEhoSx /1mQ== X-Received: by 10.224.24.131 with SMTP id v3mr2489200qab.81.1413588072345; Fri, 17 Oct 2014 16:21:12 -0700 (PDT) Received: from fgh6.eas.cornell.edu (fgh6.eas.cornell.edu. [128.253.204.21]) by mx.google.com with ESMTPSA id a93sm2003263qga.26.2014.10.17.16.21.10 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 17 Oct 2014 16:21:11 -0700 (PDT) Sender: Frank Horowitz From: Frank Horowitz Content-Type: multipart/signed; boundary="Apple-Mail=_E45AA929-E9F6-43FE-9217-12D5BBAA13A6"; protocol="application/pgp-signature"; micalg=pgp-sha1 To: cerowrt-devel@lists.bufferbloat.net Message-Id: Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) X-Mailer: Apple Mail (2.1878.6) X-Mailman-Approved-At: Thu, 13 Nov 2014 19:07:51 -0800 Subject: [Cerowrt-devel] High Performance (SSH) Data Transfers using fq_codel? 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: , Date: Fri, 17 Oct 2014 23:21:42 -0000 X-Original-Date: Fri, 17 Oct 2014 19:21:09 -0400 X-List-Received-Date: Fri, 17 Oct 2014 23:21:42 -0000 --Apple-Mail=_E45AA929-E9F6-43FE-9217-12D5BBAA13A6 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 G=92Day folks, Long time lurker. I=92ve been using Cero for my home router for quite a = while now, with reasonable results (modulo bloody OSX wifi stuffola). I=92m running into issues doing zfs send/receive over ssh across a = (mostly) internet2 backbone between Cornell (where I work) and West = Virginia University (where we have a collaborator on a DOE sponsored = project. Both ends are linux machines running fq_codel configured like = so: tc qdisc qdisc fq_codel 0: dev eth0 root refcnt 2 limit 10240p flows 1024 = quantum 1514 target 5.0ms interval 100.0ms ecn I stumbled across hpn-ssh and =97 = of particular interest to this group =97 their page on tuning TCP = parameters: N.B. their advice to increase buffer size=85 I=92m curious, what part (if any) of that advice survives with fq_codel = running on both ends?=20 Any advice from the experts here would be gratefully received! (And thanks for all of your collective and individual efforts!) Cheers, Frank Horowitz --Apple-Mail=_E45AA929-E9F6-43FE-9217-12D5BBAA13A6 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIcBAEBAgAGBQJUQaRlAAoJEKc9jX5nrxrT7fQP/2YccjBaOiUd2t+bkAM2FMe2 psVQOKBsRxLqGTfwhEFBhs0XvXEIeQS0jsSB7eFEW2g8AAV1oT24Mt8AO+eNtymw xhh73fpIHMoyh8IcBt/7Bdm2mvxOWdoOFio0zXgMqRof93jcudVeOwGRQwIdidef Nwle4vJMH5ULhr0DYIoxKWSJ0qWYoDKJB9piHlLYJ1T+T4jJVEOYXoK3tPsc64SJ qbOov0KqWN/8LpHmCAtTwH6d3z3eGzxrICWcinQ77lpKHZG7moJMH0up+kQePVaP eAzd/khrAyV4YtbW/9c8vpTIB+fNYcrCbcR2riftrSIOpNjTD0zZyc5WGRu3urbZ gnmWOZoA9F3nw8ORVHpZrzDMKFFV589iUhuSvSZv1GVdE/yLj9IjV6uJdbOgkIL/ 3NtgQqqT1pplScyLMwv0QqEB/xDbAv09Q2kdr6JMlEnVC2LJx/EisarDPCmXNZlr YORGjN7ZU5NwaO+acYpVYaNa/S6bI5EVd71O5VujRcU9/9rbmV5DB63C47KxqI96 E78hqnlkKmYHyDHCR6CQpEcnt18sTZIFrtubTXtUIxyoVSFcdoOXFCziC6MCERfB 4CtaJGGZn9H8MJIwwLPg6uevqejoMdJLeKZYM0PrD+aWGUQsThwVjYPGDn3cCU9r LQeOJ2kLWoIJWiMHTB5X =GUeO -----END PGP SIGNATURE----- --Apple-Mail=_E45AA929-E9F6-43FE-9217-12D5BBAA13A6--