Date: Sun, 17 Jan 1999 17:20:07 -0000 From: paul@originative.co.uk 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. Message-ID: <A6D02246E1ABD2119F5200C0F0303D10FDAD@OCTOPUS>
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> -----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. > > > <<On Sat, 9 Jan 1999 11:12:20 -0500 (EST), Kenneth Wayne > Culver <culverk@wam.umd.edu> 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
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