From owner-freebsd-current Sun Jan 17 09:21:47 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA06285 for freebsd-current-outgoing; Sun, 17 Jan 1999 09:21:47 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from octopus.originative.co.uk (originat.demon.co.uk [158.152.220.9]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA06278 for ; Sun, 17 Jan 1999 09:21:42 -0800 (PST) (envelope-from paul@originative.co.uk) From: paul@originative.co.uk Received: by OCTOPUS with Internet Mail Service (5.5.1960.3) id ; Sun, 17 Jan 1999 17:20:08 -0000 Message-ID: To: wollman@khavrinen.lcs.mit.edu, culverk@wam.umd.edu Cc: phiber@udel.edu, current@FreeBSD.ORG Subject: RE: FreeBSD Celeron and Celeron ( Mendocino ) kernel patch. Date: Sun, 17 Jan 1999 17:20:07 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.1960.3) Content-Type: text/plain Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > -----Original Message----- > From: Garrett Wollman [mailto:wollman@khavrinen.lcs.mit.edu] > Sent: Saturday, January 09, 1999 4:22 PM > To: Kenneth Wayne Culver > Cc: Garrett Wollman; Bryan Seitz; current@FreeBSD.ORG > Subject: Re: FreeBSD Celeron and Celeron ( Mendocino ) kernel patch. > > > < Culver said: > > > Well, they are the same in that respect, but the Pentium II > has cache in > > the same package, and most Pentium II's aren't > overclockable. The celeron > > is. > > That's OK -- we don't support overclocking anyway. > > The Celeron does have a cache in the package, BTW. The cache in the > Celeron is this tiny little thing that is actually capable of running > at clock rates of 250 MHz or higher; the actual CPU is a perfectly > ordinary Pentium-II core of the sort that would be labeled as ``450 > MHz'' when coupled with a more expensive cache. (According to my > friend who does VLSI design.) The Celeron chips are intentionally > down-rated by Intel marketing to keep them from cannibalizing the > high-end market. (Remember when upgrading to a faster line printer > meant that a SE would change a single belt?) > > I think we should stick to identifying the core. I disagree. From an user perspective I think it will be confusing to general users to report PII when they think they've got a Celeron. From a support perspective it might be useful to know what CPU is actually installed rather than just the class of CPU. On a related note, I'd be interested in benchmarks for the Celerons, how does the on-chip cache compare to the off-chip cache. Paul. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message