From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 31 Jan 2001 06:40:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 31 Jan 2001 06:40:25 -0500 Received: from [194.213.32.137] ([194.213.32.137]:2052 "EHLO bug.ucw.cz") by vger.kernel.org with ESMTP id ; Wed, 31 Jan 2001 06:40:17 -0500 Message-ID: <20010129225007.A1214@bug.ucw.cz> Date: Mon, 29 Jan 2001 22:50:08 +0100 From: Pavel Machek To: Andi Kleen , lkml Cc: leitner@fefe.de Subject: Re: sendfile+zerocopy: fairly sexy (nothing to do with ECN) In-Reply-To: <3A726087.764CC02E@uow.edu.au> <200101271854.VAA02845@ms2.inr.ac.ru> <3A73AF7B.6610B559@uow.edu.au> <20010128143748.A9767@convergence.de> <20010128152725.A13600@gruyere.muc.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93i In-Reply-To: <20010128152725.A13600@gruyere.muc.suse.de>; from Andi Kleen on Sun, Jan 28, 2001 at 03:27:25PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > Advantage of Tulip and AMD is that they perform much better in my experience > on half duplex Ethernet than other cards because they a modified > patented backoff scheme. Without it Linux 2.1+ tends to suffer badly from > ethernet congestion by colliding with the own acks, probably because it > sends too fast. Is that real problem? If so, some strategic delay loop should do the trick... Pavel -- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/