Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261532AbVDCGgi (ORCPT ); Sun, 3 Apr 2005 01:36:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261535AbVDCGgi (ORCPT ); Sun, 3 Apr 2005 01:36:38 -0500 Received: from warden-p.diginsite.com ([208.29.163.248]:43166 "HELO warden.diginsite.com") by vger.kernel.org with SMTP id S261532AbVDCGgc (ORCPT ); Sun, 3 Apr 2005 01:36:32 -0500 From: David Lang To: "Chen, Kenneth W" Cc: "'Paul Jackson'" , mingo@elte.hu, nickpiggin@yahoo.com.au, torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org Date: Sat, 2 Apr 2005 22:36:09 -0800 (PST) X-X-Sender: dlang@dlang.diginsite.com Subject: RE: Industry db benchmark result on recent 2.6 kernels In-Reply-To: <200504020205.j32256g05369@unix-os.sc.intel.com> Message-ID: References: <200504020205.j32256g05369@unix-os.sc.intel.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1468 Lines: 33 On Fri, 1 Apr 2005, Chen, Kenneth W wrote: > To run this "industry db benchmark", assuming you have a 32-way numa box, > I recommend buying the following: > > 512 GB memory > 1500 73 GB 15k-rpm fiber channel disks > 50 hardware raid controllers, make sure you get the top of the line model > (the one has 1GB memory in the controller). > 25 fiber channel controllers > 4 gigabit ethernet controllers. > 12 rack frames Ken, given that you don't have the bandwidth to keep all of those disks fully utilized, do you have any idea how big a performance hit you would take going to larger, but slower SATA drives? given that this would let you get the same storage with about 1200 fewer drives (with corresponding savings in raid controllers, fiberchannel controllers and rack frames) it would be interesting to know how close it would be (for a lot of people the savings, which probably are within spitting distance of $1M could be work the decrease in performance) David Lang -- There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies. -- C.A.R. Hoare - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/