From owner-freebsd-stable@FreeBSD.ORG Thu Feb 16 12:16:06 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 77D0216A422 for ; Thu, 16 Feb 2006 12:16:06 +0000 (GMT) (envelope-from ob@gruft.de) Received: from obh.snafu.de (obh.snafu.de [213.73.92.34]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0419D43D45 for ; Thu, 16 Feb 2006 12:16:05 +0000 (GMT) (envelope-from ob@gruft.de) Received: from ob by obh.snafu.de with local (Exim 4.60 (FreeBSD)) (envelope-from ) id 1F9i3I-000Ec3-Kb for freebsd-stable@freebsd.org; Thu, 16 Feb 2006 13:16:04 +0100 Date: Thu, 16 Feb 2006 13:16:04 +0100 From: Oliver Brandmueller To: freebsd-stable@freebsd.org Message-ID: <20060216121604.GE55530@e-Gitt.NET> Mail-Followup-To: freebsd-stable@freebsd.org References: <6.2.3.4.0.20060215221957.076524f8@64.7.153.2> <20060216100359.GA10327@jbell.maths.tcd.ie> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9UV9rz0O2dU/yYYn" Content-Disposition: inline In-Reply-To: <20060216100359.GA10327@jbell.maths.tcd.ie> User-Agent: Mutt/1.5.11 Sender: Oliver Brandmueller Subject: Re: tcp throughput and net.inet.tcp.inflight.enable X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Feb 2006 12:16:06 -0000 --9UV9rz0O2dU/yYYn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi. On Thu, Feb 16, 2006 at 10:03:59AM +0000, David Malone wrote: > I think in a situation where your network is fast and large amounts > of buffering do not imply high latency, then the inflight limiting > stuff probably isn't useful. >=20 > (I have some coworkers who reckon that inflight limiting can do the > wrong thing in other situations too, but they haven't had a chance > to investigate their suspicions yet.) Maybe it's an idea to make this an per-interface value. On my local GigE=20 NFS network it might not be useful (well, maybe even lowering the=20 performance), while on another interface with lots of connects from all=20 over the world does a good job. Dunno, it's probably not so easy to implement this, then. - Oliver --=20 | Oliver Brandmueller | Offenbacher Str. 1 | Germany D-14197 Berlin | | Fon +49-172-3130856 | Fax +49-172-3145027 | WWW: http://the.addict.de/ | | Ich bin das Internet. Sowahr ich Gott helfe. | | Eine gewerbliche Nutzung aller enthaltenen Adressen ist nicht gestattet! | --9UV9rz0O2dU/yYYn Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (FreeBSD) iD8DBQFD9G0EiqtMdzjafykRAoDLAKDHHEqGoJPOucJeno4bSzs7ew3ISACfSLZB RGs0iyZRYn1ctUvkjpTSXFk= =Jzo8 -----END PGP SIGNATURE----- --9UV9rz0O2dU/yYYn--