From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271327AbTHCXoi (ORCPT ); Sun, 3 Aug 2003 19:44:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271329AbTHCXoi (ORCPT ); Sun, 3 Aug 2003 19:44:38 -0400 Received: from smtp.bitmover.com ([192.132.92.12]:20115 "EHLO smtp.bitmover.com") by vger.kernel.org with ESMTP id S271327AbTHCXoh (ORCPT ); Sun, 3 Aug 2003 19:44:37 -0400 Date: Sun, 3 Aug 2003 16:44:19 -0700 From: Larry McVoy To: David Lang Cc: Larry McVoy , Erik Andersen , Werner Almesberger , Jeff Garzik , netdev@oss.sgi.com, linux-kernel@vger.kernel.org, Nivedita Singhvi Subject: Re: TOE brain dump Message-ID: <20030803234419.GA13604@work.bitmover.com> Mail-Followup-To: Larry McVoy , David Lang , Larry McVoy , Erik Andersen , Werner Almesberger , Jeff Garzik , netdev@oss.sgi.com, linux-kernel@vger.kernel.org, Nivedita Singhvi References: <20030803203051.GA9057@work.bitmover.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4i X-MailScanner-Information: Please contact the ISP for more information X-MailScanner: Found to be clean X-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (score=0.5, required 7, AWL, DATE_IN_PAST_06_12) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Aug 03, 2003 at 02:21:12PM -0700, David Lang wrote: > if your 8-way opteron database box is already the bottleneck for your > system you will have to spend a LOT of money to get anything that gives > you more available processing power, getting a card to offload any > processing from the main CPU's can be a win. I'd like to see data which supports this. CPUs have gotten so fast and disk I/O still sucks. All the systems I've seen are CPU rich and I/O starved. The smartest thing you could do would be to get a cheap box with a GB of ram as a disk cache and make it be a SAN device. Make N of those and you have tons of disk space and tons of cache and your 8 way opteron database box is going to work just fine. -- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm