From owner-freebsd-questions Mon Nov 4 19:59:34 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id TAA26098 for questions-outgoing; Mon, 4 Nov 1996 19:59:34 -0800 (PST) Received: from glacier.cold.org (glacier.cold.org [206.81.134.54]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id TAA26087 for ; Mon, 4 Nov 1996 19:59:31 -0800 (PST) Received: from localhost (brandon@localhost) by glacier.cold.org (8.7.5/8.7.3) with SMTP id VAA13604; Mon, 4 Nov 1996 21:00:11 -0700 (MST) Date: Mon, 4 Nov 1996 21:00:10 -0700 (MST) From: Brandon Gillespie To: David Lewis cc: questions@FreeBSD.ORG Subject: Re: Cyrix vs. Intel In-Reply-To: <3.0.32.19961104184719.0076837c@mail.intervista.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > Does anyone know if there are problems using the new Cyrix chips with > FreeBSD and/or Linux?? I assume not, but I really don't want to buy a > Cyrix-based machine if it's not going to work properly with either of those > OS's. No, no problems. I have two servers both running FreeBSD 2.1.5. One is a Cyrix 'p150+' and the other is an Intel 150mhz pentium. The only difference is the Cyrix floating math is NOT comparable to a pentium. I have a program mclock (get it at: ftp://cold.org/brandon/mclock.c.gz, compile with gcc -O). It basically does a few math functions several thousand times, clocking each cycle. It returns the following results: Cyrix 6x86 p150+ (120mhz): Float Multiply: 1.2383 seconds. Float Divide: 1.8352 seconds. Fixed Multiply: 0.2938 seconds. Fixed Divide: 0.4039 seconds. Intel Pentium 150mhz: Float Multiply: 0.3328 seconds. Float Divide: 0.8398 seconds. Fixed Multiply: 0.2555 seconds. Fixed Divide: 0.8414 seconds. -Brandon Gillespie