From owner-freebsd-amd64@FreeBSD.ORG Tue May 31 14:37:38 2005 Return-Path: X-Original-To: freebsd-amd64@FreeBSD.org Delivered-To: freebsd-amd64@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0199316A41C for ; Tue, 31 May 2005 14:37:38 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.NUXI.org (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id BF0CF43D49 for ; Tue, 31 May 2005 14:37:37 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.NUXI.org (obrien@localhost [127.0.0.1]) by dragon.NUXI.org (8.13.3/8.13.3) with ESMTP id j4VEbbMA080316; Tue, 31 May 2005 07:37:37 -0700 (PDT) (envelope-from obrien@dragon.NUXI.org) Received: (from obrien@localhost) by dragon.NUXI.org (8.13.3/8.13.1/Submit) id j4VEbavG080313; Tue, 31 May 2005 07:37:36 -0700 (PDT) (envelope-from obrien) Date: Tue, 31 May 2005 07:37:36 -0700 From: "David O'Brien" To: Ken Gunderson , freebsd-amd64@FreeBSD.org Message-ID: <20050531143736.GD9158@dragon.NUXI.org> References: <20050530090525.246b0c35.kgunders@teamcool.net> <20050530231155.GA43641@xor.obsecurity.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050530231155.GA43641@xor.obsecurity.org> X-Operating-System: FreeBSD 6.0-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 User-Agent: Mutt/1.5.9i Cc: Subject: Re: swap sizing X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-amd64@FreeBSD.org List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 May 2005 14:37:38 -0000 On Mon, May 30, 2005 at 04:11:55PM -0700, Kris Kennaway wrote: > On Mon, May 30, 2005 at 09:05:25AM -0600, Ken Gunderson wrote: > > On larger systems sporting several gigs of ram, what it the recommended > > swap scheme? I'm aware of the 2x ram rule of thumb and also that this > > rule is considered "old school" by many. And of course that you need > > at least as much swap as ram if you want to get a full dump... .. > > I'd recommend as much swap as RAM (allowing for future expansion if > you think you might one day add more RAM). Plus some space for dump headers, etc.. On an 4-32GB machines I use RAM+2MB. I'm sure the dump headers is smaller, but if it grew one day... -- -- David (obrien@FreeBSD.org)