From owner-freebsd-questions@FreeBSD.ORG Fri Aug 17 15:26:28 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D9CB716A468 for ; Fri, 17 Aug 2007 15:26:28 +0000 (UTC) (envelope-from roberthuff@rcn.com) Received: from smtp02.lnh.mail.rcn.net (smtp02.lnh.mail.rcn.net [207.172.157.102]) by mx1.freebsd.org (Postfix) with ESMTP id 99EFD13C46A for ; Fri, 17 Aug 2007 15:26:26 +0000 (UTC) (envelope-from roberthuff@rcn.com) Received: from mr08.lnh.mail.rcn.net ([207.172.157.28]) by smtp02.lnh.mail.rcn.net with ESMTP; 17 Aug 2007 11:26:26 -0400 Received: from smtp01.lnh.mail.rcn.net (smtp01.lnh.mail.rcn.net [207.172.4.11]) by mr08.lnh.mail.rcn.net (MOS 3.8.3-GA) with ESMTP id IZY18783; Fri, 17 Aug 2007 11:26:25 -0400 (EDT) Received: from 65-78-26-179.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com (HELO jerusalem.litteratus.org.litteratus.org) ([65.78.26.179]) by smtp01.lnh.mail.rcn.net with ESMTP; 17 Aug 2007 11:26:21 -0400 From: Robert Huff MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <18117.48687.914787.354056@jerusalem.litteratus.org> Date: Fri, 17 Aug 2007 11:26:39 -0400 To: freebsd-questions@freebsd.org In-Reply-To: <46C5B9A2.3020305@gmail.com> References: <098C8817-8D41-4D94-96E2-97D4310B0BAE@gmail.com> <20070817145551.GA27837@gizmo.acns.msu.edu> <46C5B9A2.3020305@gmail.com> X-Mailer: VM 7.17 under 21.5 (beta28) "fuki" XEmacs Lucid X-Junkmail-Whitelist: YES (by domain whitelist at mr08.lnh.mail.rcn.net) Subject: Re: Swap size X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Aug 2007 15:26:28 -0000 Andy Greenwood writes: > And the system is under normal load. This system has 1G of > RAM. Is there any sense in having this much swap space when it's > not being used? 1) It is - usually - better to have it and not need it, than need it and not have it. 2) While some machines have a very predictable working set of programs, others vary very widely. Trying to compute the "right" value is an exercise in futility. By default, I use the "2x current or expected memory" rule split over as many physical disks as possible. Robert Huff