Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262299AbUJ0G4w (ORCPT ); Wed, 27 Oct 2004 02:56:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262323AbUJ0Gy3 (ORCPT ); Wed, 27 Oct 2004 02:54:29 -0400 Received: from [213.188.213.77] ([213.188.213.77]:55446 "EHLO server1.navynet.it") by vger.kernel.org with ESMTP id S262299AbUJ0Guu (ORCPT ); Wed, 27 Oct 2004 02:50:50 -0400 From: "Massimo Cetra" To: "'William Lee Irwin III'" , "'Willy Tarreau'" Cc: "'Rik van Riel'" , "'Marcos D. Marado Torres'" , "'Ed Tomlinson'" , "'Chuck Ebbert'" <76306.1226@compuserve.com>, "'Bill Davidsen'" , "'linux-kernel'" Subject: RE: My thoughts on the "new development model" Date: Wed, 27 Oct 2004 08:50:35 +0200 Message-ID: <015b01c4bbf1$48069580$e60a0a0a@guendalin> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 In-Reply-To: <20041027062833.GV15367@holomorphy.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Importance: Normal Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1370 Lines: 33 > On Wed, Oct 27, 2004 at 08:04:33AM +0200, Willy Tarreau wrote: > > Oh yes I remember... I was very interested because of netfilter and > > ramfs but couldn't use it because of its awful stability. That was > > when I started complaining about linux development model, where new > > features were more important than bug fixes, which resulted in no > > usable kernel before 2.4.18. > > 2.6.x has taken a rather different path from 2.4.x However, results are similar. 2.6 seems to work better than 2.4 in "early stage of stable branch" but It's quite impossible to set up a production server on 2.6.x, optimize it and keeping the same performance with 2.6.(x+2). Iosched has a lot of flavours, with performance worse than 2.4 (at least for databases). Swap is a misterious thing and It needs a degree in swappiness to understand how it works and how it changes. I see a lot of efforts in making a top-performance kernel but these efforts are not compatible with a stable-tree. Stable means not only that the kernel does not hangs, but that features remains (almost) the same for a reasonable amount of time. Max - 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/