From owner-freebsd-performance@FreeBSD.ORG Mon May 2 23:07:08 2005 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F107F16A4CE for ; Mon, 2 May 2005 23:07:08 +0000 (GMT) Received: from flake.decibel.org (flake.decibel.org [67.100.216.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id A8E7543D54 for ; Mon, 2 May 2005 23:07:08 +0000 (GMT) (envelope-from decibel@decibel.org) Received: by flake.decibel.org (Postfix, from userid 1001) id EBF92152B4; Mon, 2 May 2005 18:07:02 -0500 (CDT) Date: Mon, 2 May 2005 18:07:02 -0500 From: "Jim C. Nasby" To: Mike Tancsa Message-ID: <20050502230702.GH47820@decibel.org> References: <6.2.1.2.0.20050501094429.06974910@64.7.153.2> <20050501191001.GF85317@over-yonder.net> <6.2.1.2.0.20050501183331.045c3770@64.7.153.2> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6.2.1.2.0.20050501183331.045c3770@64.7.153.2> X-Operating-System: FreeBSD 4.11-RELEASE i386 X-Distributed: Join the Effort! http://www.distributed.net User-Agent: Mutt/1.5.8i cc: freebsd-performance@freebsd.org cc: "Matthew D. Fuller" Subject: Re: 64bit CPUs X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 May 2005 23:07:09 -0000 On Sun, May 01, 2005 at 07:34:31PM -0400, Mike Tancsa wrote: > I havent paid that much attention to the comparisons as they tend to be > very windows based and games to boot. But surely its hard to compare > across platforms. The CPUs require different chipsets, so some of the > performance results can be due to the MB and RAM. > http://www6.tomshardware.com/cpu/20050221/prescott-10.html#synthetic > The P4 640 3.2Ghz is about the same price at one of my suppliers as the 64 > 3500+ and the numbers are not that different. > > For me to switch to a different platform and risk stability issues there > would have to be some decent payoff in either cost savings or serious > performance differences. I am thinking perhaps for my RADIUS accounting > database which is very large might benefit as I have already maxed out the > RAM. >From what I've seen on the PostgreSQL lists, PostgreSQL sees a huge (30%) performance increase on Opterons over Xeons, and other databases see 10-15%. I haven't seen 32 bit vs 64 bit numbers, but I would expect the increase to be even larger than Xeon to Opteron numbers. -- Jim C. Nasby, Database Consultant decibel@decibel.org Give your computer some brain candy! www.distributed.net Team #1828 Windows: "Where do you want to go today?" Linux: "Where do you want to go tomorrow?" FreeBSD: "Are you guys coming, or what?"