From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 25 Aug 2001 12:38:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 25 Aug 2001 12:38:20 -0400 Received: from humbolt.nl.linux.org ([131.211.28.48]:65038 "EHLO humbolt.nl.linux.org") by vger.kernel.org with ESMTP id ; Sat, 25 Aug 2001 12:38:01 -0400 Content-Type: text/plain; charset=US-ASCII From: Daniel Phillips To: Rik van Riel Subject: Re: [resent PATCH] Re: very slow parallel read performance Date: Sat, 25 Aug 2001 18:43:29 +0200 X-Mailer: KMail [version 1.3.1] Cc: Roger Larsson , "Marc A. Lehmann" , , In-Reply-To: In-Reply-To: MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <20010825163648Z16186-32383+1334@humbolt.nl.linux.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On August 25, 2001 05:50 pm, Rik van Riel wrote: > On Sat, 25 Aug 2001, Daniel Phillips wrote: > > > > True, it's just an issue of performance and heavily used > > > servers falling over under load, nothing as serious as > > > data corruption or system instability. > > > > If your server is falling over under load, this is not the reason. > > I bet your opinion will be changed the moment you see a system > get close to falling over exactly because of this. > > Remember NL.linux.org a few weeks back, where a difference of > 10 FTP users more or less was the difference between a system > load of 3 and a system load of 250 ? ;) Well, lets look into that then. Surely you hit the wall at some point, no matter which replacement policy you use. How many simultaneous downloads can you handle with 2.4.7 vs 2.4.8? -- Daniel