Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932606Ab1ESGKq (ORCPT ); Thu, 19 May 2011 02:10:46 -0400 Received: from mta-2.ms.rz.RWTH-Aachen.DE ([134.130.7.73]:41431 "EHLO mta-2.ms.rz.rwth-aachen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932267Ab1ESGKo (ORCPT ); Thu, 19 May 2011 02:10:44 -0400 MIME-version: 1.0 X-IronPort-AV: E=Sophos;i="4.65,235,1304287200"; d="sig'?scan'208";a="113308872" Subject: Re: [PATCH] tcp: Implement a two-level initial RTO as per draft RFC 2988bis-02. Content-type: multipart/signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary=Apple-Mail-33-1060726600 From: Alexander Zimmermann In-reply-to: Date: Thu, 19 May 2011 08:10:40 +0200 Cc: David Miller , kuznet@ms2.inr.ac.ru, pekkas@netcore.fi, jmorris@namei.org, yoshfuji@linux-ipv6.org, kaber@trash.net, hagen@jauu.net, eric.dumazet@gmail.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Content-transfer-encoding: 7bit Message-id: <9DC9A4D5-8E16-4361-B323-C92D563171A1@comsys.rwth-aachen.de> References: <1305771744-83951-1-git-send-email-tsunanet@gmail.com> <20110518.223622.1525088601595365235.davem@davemloft.net> <20110519.001426.2119532755281545481.davem@davemloft.net> To: tsuna X-Pgp-Agent: GPGMail 1.3.3 X-Mailer: Apple Mail (2.1084) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2029 Lines: 66 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --Apple-Mail-33-1060726600 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Hi, Am 19.05.2011 um 06:33 schrieb tsuna: > Presumably if the user decides to tweak these knobs, they'll know > what's appropriate for their environment. Are you sure? I'm not. I fully agree with David that minRTO is something that a user shout not control at all > Or are you suggesting that > one value be derived from the other? (e.g. tcp_initial_fallback_rto = > 3 * tcp_initial_rto) > >> As a result of all of this, I do not really think this is something >> the user should control at all. >> >> I really would rather see the initial RTO be static and be set to 1 >> with fallback RTO of 3. > > I can also provide a simple patch for this if you want to start from > there. And then maybe we can discuss having a runtime knob some more > :-) > > -- > Benoit "tsuna" Sigoure > Software Engineer @ www.StumbleUpon.com // // Dipl.-Inform. Alexander Zimmermann // Department of Computer Science, Informatik 4 // RWTH Aachen University // Ahornstr. 55, 52056 Aachen, Germany // phone: (49-241) 80-21422, fax: (49-241) 80-22222 // email: zimmermann@cs.rwth-aachen.de // web: http://www.umic-mesh.net // --Apple-Mail-33-1060726600 content-type: application/pgp-signature; x-mac-type=70674453; name=PGP.sig content-description: Signierter Teil der Nachricht content-disposition: inline; filename=PGP.sig content-transfer-encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org iEYEARECAAYFAk3UtGEACgkQdyiq39b9uS5BAQCg8rVcWTflWjYU7QI7/dqL2ceV Bm8AoIKqyDcY2osrORNtI3LGQN7D0+zz =8ujM -----END PGP SIGNATURE----- --Apple-Mail-33-1060726600-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/