From owner-freebsd-questions Mon Feb 24 17:14:18 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id RAA07149 for questions-outgoing; Mon, 24 Feb 1997 17:14:18 -0800 (PST) Received: from python.shoal.net.au (python.shoal.net.au [203.26.44.5]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id RAA07139 for ; Mon, 24 Feb 1997 17:14:04 -0800 (PST) Received: from localhost (andrew@localhost) by python.shoal.net.au (8.8.5/8.7.3) with SMTP id MAA28694 for ; Tue, 25 Feb 1997 12:12:11 +1100 (EST) Date: Tue, 25 Feb 1997 12:12:11 +1100 (EST) From: Andrew Perry To: FreeBSD questions Subject: Re: Adding memory slows down 486 to less than 386SX! In-Reply-To: <199702242235.AA204803746@ws2301.gud.siemens.co.at> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Mon, 24 Feb 1997, Hr.Ladavac wrote: > E-mail message from M. L. Dodson contained: > > > > Hello, > > > > I just upgraded a 486DX-25 from 8MB to 20MB memory and sequential > > character disk I/O to a SCSI disk is now slower than to an IDE disk > > on a 386SX! > > > > The machine "feels" slow, also. Not only under FreeBSD, but also under > > Win95 (for processes that do not cause swapping). I have included bonnie > > Any help would be appreciated. I'm at a loss. > > > > Bud Dodson > > How much Level-2 cache do you have on the '486 board? Some boards could > only cache the lower 16MB unless you had more than 128K cache. Mine was > one of these :( > > /Marino I had a very similar problem with a 486DX33, I upgraded from 8 1MB simms (30 pin) to 4 4MB simms and the machine slowed down to a crawl straight away. :( Fortunately I managed to convince my employer that these 30 pins simms were "old hat" and it would be more cost/performance effective to buy me a pentium 100 with 16MB ram (72 pin simms) :-) Andrew Perry andrew@shoal.net.au