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, 22 May 2002 11:17:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 22 May 2002 11:16:59 -0400 Received: from dc-mx09.cluster1.charter.net ([209.225.8.19]:57791 "EHLO mx09.cluster1.charter.net") by vger.kernel.org with ESMTP id ; Wed, 22 May 2002 11:16:58 -0400 Date: Wed, 22 May 2002 11:16:44 -0400 To: linux-kernel@vger.kernel.org Subject: 2.4.18-rc4 linux/Documentation/sysctl/vm.txt out of date/sync with kernel Message-ID: <20020522151644.GA18815@charter.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.28i From: misty-@charter.net Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I have recently noticed on kernel 2.4.18-rc4 that the documentation included in linux/Documentation/sysctl/vm.txt is obsolete - things that exist (some of which I would find very useful!) in the documentation do not exist in the current /proc/sys/vm/ directory. Of all of the features, the one I want the most to fiddle with is 'pagecache' which would let me mess around with the disk caching on my ancient and some would say obsolete 486 with 16MB of ram. The reason is because there are times when it's badly overloaded due to an obese program (dpkg/apt-get usually. I use debian as my distribution) and I've noticed it's got a little more than a third of ram devoted to disk *cache* - which I would think would be better suited to trying to run the program at that point! At the worst, fiddling with it would allow me to learn if it improved or worsened the 486's speed at completing the program and responsiveness during the experience. Other things that do not exist in there that I would find useful to tweak: buffermem, and freepages. There are two procs in there which I didn't see any documentation in the tree for: min-readahead max-readahead - I assume these are for file read operations? I enjoy using linux and hope my question doesn't bug anyone too much. Tim McGrath