From owner-freebsd-amd64@FreeBSD.ORG Tue Dec 26 17:34:41 2006 Return-Path: X-Original-To: amd64@freebsd.org Delivered-To: freebsd-amd64@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C03A416A403 for ; Tue, 26 Dec 2006 17:34:41 +0000 (UTC) (envelope-from tamaru@myn.rcast.u-tokyo.ac.jp) Received: from mail1.ecc.u-tokyo.ac.jp (mail1.ecc.u-tokyo.ac.jp [133.11.50.203]) by mx1.freebsd.org (Postfix) with ESMTP id 71AE813C463 for ; Tue, 26 Dec 2006 17:34:41 +0000 (UTC) (envelope-from tamaru@myn.rcast.u-tokyo.ac.jp) Received: from spam001.ecc.u-tokyo.ac.jp (spam001.ecc.u-tokyo.ac.jp [133.11.50.194]) by mail1.ecc.u-tokyo.ac.jp (Postfix) with ESMTP id D6A1E1006D for ; Wed, 27 Dec 2006 02:34:40 +0900 (JST) Received: from md001.ecc.u-tokyo.ac.jp (192.168.160.21 [192.168.160.21]) by spam001.ecc.u-tokyo.ac.jp (SpamBlock.pst 3.4.94) with ESMTP id for ; Wed, 27 Dec 2006 02:34:39 +0900 Received: from amulet.amuletic.net (v055252.ppp.asahi-net.or.jp [124.155.55.252]) by md001.ecc.u-tokyo.ac.jp (MOS 3.4.5-GR) with ESMTP id BPE86446 (AUTH via LOGINBEFORESMTP); Wed, 27 Dec 2006 02:34:39 +0900 (JST) Date: Wed, 27 Dec 2006 02:34:52 +0900 Message-ID: From: Hiroharu Tamaru To: amd64@FreeBSD.org In-Reply-To: <20061226153334.GA42100@voi.aagh.net> References: <20061226153334.GA42100@voi.aagh.net> User-Agent: User-Agent: Wanderlust/2.14.0 (Africa) Emacs/21.3 Mule/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII X-IP: 192.168.160.21 X-FROM-DOMAIN: myn.rcast.u-tokyo.ac.jp X-FROM-EMAIL: tamaru@myn.rcast.u-tokyo.ac.jp Cc: Subject: Re: >32GB memory with Xeon ? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Dec 2006 17:34:41 -0000 Hi, Thanks for a very quick reply. At Tue, 26 Dec 2006 15:33:34 +0000, Thomas Hurst wrote: > * Hiroharu Tamaru (tamaru@myn.rcast.u-tokyo.ac.jp) wrote: > > > Specifically, I am thinking of a Dual-core x Dual-processor Xeon 5160, > > with 5000P chipset and something like 40GB of RAM. > > > > I'd appreciate if someone would tell me if the system can use the > > whole memory, and/or if one single process can use the whole memory > > (or at least most of it)? > > Should be fine, though I've only personally used systems with 16G, I've > had individual processes approach 30GB using swap (though not on > purpose, *cough*). Glad to hear, yes, and 30GB using swap surviving is a good news too ;-) I see that some Linux distro seems to have 32GB limit. So, if someone can confirm >32GB, I feel even safer.. ;-p > > Are there any other things to be noted? like.. some popular hardware > > not working with > 4GB memory and such. I don't need much fancy > > hardware, but would like to expect SATA disks, ATAPI CDs and Gb > > Ethernet NICs to work.. > > ata(4) has a poor history on systems with >=4G and more than one or two > disks, though I've not tried it recently; it always used to run out of > bounce pages and die, and I've not seen anything to suggest it's been > resolved. I bought an LSI MegaRAID (amr(4)) for the bulk of my storage. > > http://lists.freebsd.org/pipermail/freebsd-amd64/2006-March/007827.html > > No problems with if_bge/em, USB, etc. Here's a more useful list of > drivers: > > http://lists.freebsd.org/pipermail/freebsd-amd64/2006-March/007758.html Oh great, these saved me a lot of time searching. Thank you again. -- Hiroharu Tamaru