From owner-freebsd-questions@FreeBSD.ORG Sat Apr 28 18:36:26 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 53E8D16A40A for ; Sat, 28 Apr 2007 18:36:26 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from mxout2.cac.washington.edu (mxout2.cac.washington.edu [140.142.33.4]) by mx1.freebsd.org (Postfix) with ESMTP id 2D25113C4AD for ; Sat, 28 Apr 2007 18:36:26 +0000 (UTC) (envelope-from youshi10@u.washington.edu) Received: from smtp.washington.edu (smtp.washington.edu [140.142.32.139]) by mxout2.cac.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP id l3SIaPf4007245 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Sat, 28 Apr 2007 11:36:25 -0700 X-Auth-Received: from [192.168.10.45] (c-67-187-164-17.hsd1.ca.comcast.net [67.187.164.17]) (authenticated authid=youshi10) by smtp.washington.edu (8.13.7+UW06.06/8.13.7+UW07.03) with ESMTP id l3SIaN2L015281 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sat, 28 Apr 2007 11:36:24 -0700 Message-ID: <4633942F.20102@u.washington.edu> Date: Sat, 28 Apr 2007 11:36:31 -0700 From: Garrett Cooper User-Agent: Thunderbird 2.0.0.0 (Windows/20070326) MIME-Version: 1.0 To: Reshmakov Roman References: <500464.36852.qm@web8607.mail.in.yahoo.com> <20070428135750.GA64527@slackbox.xs4all.nl> <947509420.20070428180835@rrv.ru> In-Reply-To: <947509420.20070428180835@rrv.ru> Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: 7bit X-PMX-Version: 5.3.1.294258, Antispam-Engine: 2.5.1.298604, Antispam-Data: 2007.4.28.111833 X-Uwash-Spam: Gauge=IIIIIII, Probability=7%, Report='LEO_OBFU_SUBJ_RE 0.1, __CHARSET_IS_CP1251 0, __CP_URI_IN_BODY 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __HAS_MSGID 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __SANE_MSGID 0, __USER_AGENT 0' Cc: Roland Smith , mukul choudhuri , freebsd-questions@freebsd.org Subject: Re: Hardware requirement 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: Sat, 28 Apr 2007 18:36:26 -0000 Reshmakov Roman wrote: > We sucessfuly use amd64 arch on Intel Xeon CPUs. EMT64 is fully compatible with the major features in AMD64. However, IA64 (64-bit architecture made by Intel in older Xeons) isn't compatible with AMD Opterons AFAIK. Besides, IA64 doesn't allow binary/library profiling and requires all stuff to be done in 64-bit whereas EMT64 and AMD64 do allow for 32-bit and 64-bit operation, simultaneously IIRC. >> On Sat, Apr 28, 2007 at 12:56:04PM +0100, mukul choudhuri wrote: > >>> Would U Plz. tell me about MAX amount of RAM freeBSD supports per >>> processor in SMP systems? > >> Depends on the architecture. A 32 bit x86 chip can address 4GB, unless >> you have the PAE extension in the kernel. In that case it is 64 >> GB. Beware that some drivers are not compatible with PAE. As Roland suggested, you should go with non-PAE 32-bit (in this case 64-bit operating system) if you want more than 4GB of RAM. Look up the archives for this mailing list on recent discussion centered around this topic. >> The amd64 architecture has been tested with 8 GB. >> For other architectures, see the release notes: >> >> http://www.nl.freebsd.org/releases/6.2R/hardware.html >> >>> Does a dualcore system be considered as SMP system? Say an AMD X2 or Core2Duo? > >> Yes, AFAIK. Yes, they are. SMP = "Symmetric multiprocessor system", which includes hyperthreading, multi-processor, and multi-core capable CPUs (or some hybrid variant of the above). >> Roland -Garrett