From owner-freebsd-amd64@FreeBSD.ORG Tue May 31 14:20:39 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 982B016A41C for ; Tue, 31 May 2005 14:20:39 +0000 (GMT) (envelope-from vivek@khera.org) Received: from yertle.kcilink.com (yertle.kcilink.com [65.205.34.180]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5155F43D49 for ; Tue, 31 May 2005 14:20:36 +0000 (GMT) (envelope-from vivek@khera.org) Received: from [192.168.7.103] (host-103.int.kcilink.com [192.168.7.103]) by yertle.kcilink.com (Postfix) with ESMTP id 4A97FB85A for ; Tue, 31 May 2005 10:20:36 -0400 (EDT) Mime-Version: 1.0 (Apple Message framework v730) In-Reply-To: <20050530231640.T58656@zoraida.natserv.net> References: <3.0.1.32.20050530175629.00a77268@pop.redshift.com> <20050530231640.T58656@zoraida.natserv.net> Content-Type: multipart/signed; micalg=sha1; boundary=Apple-Mail-2--344402113; protocol="application/pkcs7-signature" Message-Id: <5B67FDFF-B537-4BA9-8145-898EA08437D6@khera.org> From: Vivek Khera Date: Tue, 31 May 2005 10:20:34 -0400 To: freebsd-amd64@freebsd.org X-Mailer: Apple Mail (2.730) X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Re: AMD64 Faster? 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, 31 May 2005 14:20:39 -0000 --Apple-Mail-2--344402113 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed On May 30, 2005, at 11:18 PM, Francisco Reyes wrote: > All the reports I have read from several lists, including some non > FreeBSD ones, seems to show AMD64 doing significantly better on > data intensive operations. > > In a PostgreSQL list I read reports of 1.5 to 2.0 times the > performance of Intel CPU of the same speed. > I'll confirm this with PostgreSQL. I have a 1-year old Dell 2650 with a 14-disk RAID array that cannot keep up with replication coming from a dual opteron with a 6 disk RAID array. The replica doesn't even need to do any data intergrity checking (foreign keys) which are quite expensive. For normal regular server usage, though, I don't see a need for opteron. the intel emt64 Xeon system I have is kind of mediocre, too, running FreeBSD/amd64, but I think that's just because it is a Dell :-) Vivek Khera, Ph.D. +1-301-869-4449 x806 --Apple-Mail-2--344402113--