Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263562AbTHZJp0 (ORCPT ); Tue, 26 Aug 2003 05:45:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263561AbTHZJp0 (ORCPT ); Tue, 26 Aug 2003 05:45:26 -0400 Received: from holomorphy.com ([66.224.33.161]:24238 "EHLO holomorphy") by vger.kernel.org with ESMTP id S263572AbTHZJpY (ORCPT ); Tue, 26 Aug 2003 05:45:24 -0400 Date: Tue, 26 Aug 2003 02:46:34 -0700 From: William Lee Irwin III To: Takao Indoh , linux-kernel@vger.kernel.org Subject: Re: cache limit Message-ID: <20030826094634.GP4306@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Takao Indoh , linux-kernel@vger.kernel.org References: <20030821234709.GD1040@matchmail.com> <20030825041117.GN4306@holomorphy.com> <20030825225847.GA16831@matchmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030825225847.GA16831@matchmail.com> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1165 Lines: 24 On Sun, Aug 24, 2003 at 09:11:17PM -0700, William Lee Irwin III wrote: >> This is moderately misguided; essentially the only way userspace can >> utilize RAM at all is via the pagecache. It's not useful to limit this; >> you probably need inode-highmem or some such nonsense. On Mon, Aug 25, 2003 at 03:58:47PM -0700, Mike Fedyk wrote: > Exactly. Every program you have opened, and all of its libraries will show > up as pagecache memory also, so seeing a large pagecache in and of itself > may not be a problem. > Let's get past the tuning paramenter you want in /proc, and tell us more > about what you are doing that is causing this problem to be shown. One thing I thought of after the post was whether they actually had in mind tunable hard limits on _unmapped_ pagecache, which is, in fact, useful. OTOH that's largely speculation and we really need them to articulate the true nature of their problem. -- wli - 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/