From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268711AbUHYU76 (ORCPT ); Wed, 25 Aug 2004 16:59:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268662AbUHYUzn (ORCPT ); Wed, 25 Aug 2004 16:55:43 -0400 Received: from holomorphy.com ([207.189.100.168]:41871 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S268696AbUHYUuz (ORCPT ); Wed, 25 Aug 2004 16:50:55 -0400 Date: Wed, 25 Aug 2004 13:50:45 -0700 From: William Lee Irwin III To: Rik van Riel Cc: Con Kolivas , ck kernel mailing list , linux kernel mailing list Subject: Re: 2.6.8.1-ck4 Message-ID: <20040825205045.GI2793@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Rik van Riel , Con Kolivas , ck kernel mailing list , linux kernel mailing list References: <412880BF.6050503@kolivas.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.6+20040722i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 22 Aug 2004, Con Kolivas wrote: >> Added since 2.6.8.1-ck3: >> +mapped_watermark.diff On Wed, Aug 25, 2004 at 04:22:32PM -0400, Rik van Riel wrote: > Sounds like a bad idea for file servers ;) > Wouldn't it be better to lazily move these cached pages to > a "cached" list like the BSDs have, and reclaim it immediately > when the memory is needed for something else ? > It should be easy enough to keep the cached data around and > still have the cache pages easily reclaimable. This will be unmapped and clean; but that's not certain to be enough. We must ask at what cost comes aggressive caching. -- wli