From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 24 May 2002 06:04:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 24 May 2002 06:04:37 -0400 Received: from [62.70.58.70] ([62.70.58.70]:18322 "EHLO mail.pronto.tv") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Fri, 24 May 2002 06:04:35 -0400 Message-Id: <200205241004.g4OA4Ul28364@mail.pronto.tv> Content-Type: text/plain; charset=US-ASCII From: Roy Sigurd Karlsbakk Organization: Pronto TV AS To: "Martin J. Bligh" , linux-kernel@vger.kernel.org Subject: Re: [BUG] 2.4 VM sucks. Again Date: Fri, 24 May 2002 12:04:30 +0200 X-Mailer: KMail [version 1.3.1] In-Reply-To: <200205231311.g4NDBO613726@mail.pronto.tv> <200205231629.g4NGTWE22956@mail.pronto.tv> <399720000.1022172368@flay> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > > I have 1 gig - highmem (not enabled) - 900 megs. > > for what I can see, kernel can't reclaim buffers fast enough. > > ut looks better on -aa. > > Sounds like exactly the same problem we were having. There are two > approaches to solving this - Andrea has a patch that tries to free them > under memory pressure, akpm has a patch that hacks them down as soon > as you've fininshed with them (posted to lse-tech mailing list). Both > approaches seemed to work for me, but the performance of the fixes still > has to be established. Where can I find the akpm patch? Any plans to merge this into the main kernel, giving a choice (in config or /proc) to enable this? > I've seen over 1Gb of buffer_heads ;-) > > M. -- Roy Sigurd Karlsbakk, Datavaktmester Computers are like air conditioners. They stop working when you open Windows.