From owner-freebsd-hackers Wed May 17 21:39:22 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id VAA24687 for hackers-outgoing; Wed, 17 May 1995 21:39:22 -0700 Received: from gndrsh.aac.dev.com (gndrsh.aac.dev.com [198.145.92.241]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id VAA24678 for ; Wed, 17 May 1995 21:39:19 -0700 Received: (from rgrimes@localhost) by gndrsh.aac.dev.com (8.6.11/8.6.9) id VAA13272; Wed, 17 May 1995 21:37:48 -0700 From: "Rodney W. Grimes" Message-Id: <199505180437.VAA13272@gndrsh.aac.dev.com> Subject: Re: Adaptec 2940? To: tom@haven.uniserve.com (Tom Samplonius) Date: Wed, 17 May 1995 21:37:48 -0700 (PDT) Cc: gibbs@estienne.CS.Berkeley.EDU, hackers@FreeBSD.org In-Reply-To: from "Tom Samplonius" at May 17, 95 07:30:38 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1154 Sender: hackers-owner@FreeBSD.org Precedence: bulk > > > On Mon, 15 May 1995, Justin T. Gibbs wrote: > > > > Is it just me, or is the 2940 slower than the 1742 and 2742? > > > > > > (BTW, I'm running a kernel supped last week) > > > > > >Tom > > > > I'll let you know once I get my Pentium machine. :) I don't see > > any reason why it would be slower than a 2742. > > I swapped a ASUS AMD486DX4100 PCI with a 2940, for a AMI 486DX266 EISA > with a 2742, and found that "iozone auto" would give consistently better > results. Running top and running two dd's or two iozone's revealed that EISA > system was using less system and interrupt time for the same job. > I used a almost current kerenel and the same drives for both. Which ASUS model of board, there are no less than 3 ASUS PCI 486 MB and the memory bandwidth on all 3 of them are different. Wich AMI model motherboard, I don't know how many EISA boards they make. I suspect you may be comparing CPU <-> memory bandwidth when you look at the system load more than anything. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Custom computers for FreeBSD