From owner-freebsd-hackers Sun Feb 2 10:22:03 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id KAA29093 for hackers-outgoing; Sun, 2 Feb 1997 10:22:03 -0800 (PST) Received: from who.cdrom.com (who.cdrom.com [204.216.27.3]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id KAA29088 for ; Sun, 2 Feb 1997 10:22:01 -0800 (PST) Received: from haldjas.folklore.ee (Haldjas.folklore.ee [193.40.6.121]) by who.cdrom.com (8.7.5/8.6.11) with ESMTP id KAA11111 for ; Sun, 2 Feb 1997 10:21:57 -0800 (PST) Received: from localhost (narvi@localhost) by haldjas.folklore.ee (8.8.4/8.8.4) with SMTP id UAA13651; Sun, 2 Feb 1997 20:20:55 +0200 (EET) Date: Sun, 2 Feb 1997 20:20:55 +0200 (EET) From: Narvi To: Terry Lambert cc: gurney_j@resnet.uoregon.edu, hackers@freefall.freebsd.org Subject: Re: performance puzzler In-Reply-To: <199702012151.OAA06709@phaeton.artisoft.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Sat, 1 Feb 1997, Terry Lambert wrote: > > > Your bus on the 120 is 3MHz slower than the bus on the 66. What you > > > are doing is not I/O bound, it is CPU bound. > > > > umm... this usually isn't true... most of the non 33mhz bus speeds (for > > 486 based chips) are actually 40 mhz or 50mhz... the amd-486/120dx4 is > > actually a 40mhz bus multiplied by 3... it's kinda like the Intel > > 486/100dx4... the chip is actually 3x bus speed (33mhz)... > > Memory bus, or I/O bus? > > The PCI and EISA standards specify 33MHz as their top end. > Where did I read about 66Mhz revision/mode for PCI? Was it in a dream or just a "not supported by anybody yet" possibility as is the 64bit card width. Or was it all just a dream or erroneus news article? Sander > > > Terry Lambert > terry@lambert.org > --- > Any opinions in this posting are my own and not those of my present > or previous employers. >