From owner-freebsd-hardware Mon Aug 28 19:29:07 1995 Return-Path: hardware-owner Received: (from majordom@localhost) by freefall.FreeBSD.org (8.6.11/8.6.6) id TAA06540 for hardware-outgoing; Mon, 28 Aug 1995 19:29:07 -0700 Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.FreeBSD.org (8.6.11/8.6.6) with ESMTP id TAA06532 for ; Mon, 28 Aug 1995 19:29:01 -0700 Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.9/8.6.9) id LAA24532; Tue, 29 Aug 1995 11:55:39 +0930 From: Michael Smith Message-Id: <199508290225.LAA24532@genesis.atrad.adelaide.edu.au> Subject: Re: Upgrade to my machine To: vince@penzance.econ.yale.edu (-Vince-) Date: Tue, 29 Aug 1995 11:55:39 +0930 (CST) Cc: msmith@atrad.adelaide.edu.au, hardware@freebsd.org In-Reply-To: from "-Vince-" at Aug 28, 95 05:40:13 am Content-Type: text Content-Length: 1751 Sender: hardware-owner@freebsd.org Precedence: bulk -Vince- stands accused of saying: >> Depends on what you're trying to do with it, and what sort of FreeBSD >> box you're talking about. A VLB '486DX2/66 will just about keep even >> with a Sparc 2 otherwise similarly configured; I don't have any data >> on faster Sun systems as just about everything around here is an Alpha. > > I meant like use it as a server for a organization on a FreeBSD P5-90 > box, what would it be equivelent to in performance? Is the Alpha that > much better than a Pentium? Depends on what you're doing, as far as I can tell. I'll have a clearer picture when the new box (P100) comes in, and I can get some comparative numbers against the low-end (-66) alphas around here. > I thought the working size will always exceed the physical memory > since you can only expand to a certain number for physical ram while with > hd's, you can just add new ones... Huh? The "certain number" for physical ram essentially limits your maximum working set size; obviously you have a limit related to processor speed as well. (after all, you can only access so much memory in a given period). Once your working set (the pages currently in use by active processes) exceeds the available physical memory, you start thrashing, as you have to swapout/swapin on a regular basis. > -Vince- vince@kbrown.oldcampus.yale.edu - GUS Mailing Lists Admin -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] My car has "demand start" -Terry Lambert UNIX: live FreeBSD or die! [[