From owner-freebsd-alpha@FreeBSD.ORG Wed Jun 18 07:02:38 2003 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 332D537B401 for ; Wed, 18 Jun 2003 07:02:38 -0700 (PDT) Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id DEA7C43FBF for ; Wed, 18 Jun 2003 07:02:36 -0700 (PDT) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de (cicely5.cicely.de [IPv6:3ffe:400:8d0:301:200:92ff:fe9b:20e7]) by srv1.cosmo-project.de (8.12.9/8.12.9) with ESMTP id h5IE2PhR028907 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Wed, 18 Jun 2003 16:02:26 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [IPv6:3ffe:400:8d0:301::12]) by cicely5.cicely.de (8.12.9/8.12.9) with ESMTP id h5IE2NRp092626 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 18 Jun 2003 16:02:23 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.12.9/8.12.9) with ESMTP id h5IE2MoT006636; Wed, 18 Jun 2003 16:02:22 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.12.9/8.12.9/Submit) id h5IE2MQc006635; Wed, 18 Jun 2003 16:02:22 +0200 (CEST) Date: Wed, 18 Jun 2003 16:02:22 +0200 From: Bernd Walter To: Andrew Gallatin Message-ID: <20030618140221.GN3626@cicely12.cicely.de> References: <16094.16676.273466.121560@grasshopper.cs.duke.edu> <20030613190624.W36168-100000@mail.chesapeake.net> <16110.27799.68056.48679@grasshopper.cs.duke.edu> <20030618005958.GD3626@cicely12.cicely.de> <16111.54084.284151.643826@grasshopper.cs.duke.edu> <20030618123315.GH3626@cicely12.cicely.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030618123315.GH3626@cicely12.cicely.de> X-Operating-System: FreeBSD cicely12.cicely.de 5.1-CURRENT alpha User-Agent: Mutt/1.5.4i cc: ticso@cicely.de cc: freebsd-alpha@freebsd.org Subject: Re: 5.1beta2 on Alpha ES40 w/ 32GB pys ram X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: ticso@cicely.de List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Jun 2003 14:02:38 -0000 On Wed, Jun 18, 2003 at 02:33:16PM +0200, Bernd Walter wrote: > On Tue, Jun 17, 2003 at 10:49:40PM -0400, Andrew Gallatin wrote: > > Bernd Walter writes: > > > Maybe with a tuneable size as a 4G map takes 4M map - checked for 21172. > > > > I'm not sure what you're saying. Are you saying that a sparse map can > > still be effective and we should share with the ISA map if we need to? > > If so, I agree... > > More or less. > Are sparse maps possible? > I asume there is no use for a 4G map on a system with only 1G memory > plugged in. > Beside fragmentation loss there is no need to have a bigger window. > The 21172 supports 8G memory and max 4G sized windows so we are > already limited. I'm feeling stupid. Of course that window can't be bigger than we have addressable space on PCI. I guess we are limited to something like 512M to 1G? -- B.Walter BWCT http://www.bwct.de ticso@bwct.de info@bwct.de