Date: Wed, 13 Mar 2002 20:46:46 -0800 From: Terry Lambert <tlambert2@mindspring.com> To: Matthew Emmerton <matt@gsicomp.on.ca> Cc: hackers@FreeBSD.ORG Subject: Re: Interesting sysctl variables in Mac OS X with hw info Message-ID: <3C902B36.4D4EB8E@mindspring.com> References: <Pine.BSF.4.21.0203131636280.70491-100000@InterJet.elischer.org> <006601c1cb06$b9f07370$1200a8c0@gsicomp.on.ca>
next in thread | previous in thread | raw e-mail | index | archive | help
Matthew Emmerton wrote: > > > > This was actually discussed a while back (a month or two ago). > > > > > > > > It got really bogged down when someone pointed out that > > > > they were running CPUs with different clock rates in their > > > > SMP box, just to see what the net effect would be. THe > > > > problem was, of course, which one do you report, when the > > > > numbers don't match exactly, and/or how do you report both > > > > (or N)? > > I thought it was a real bad thing to run CPUs in SMP systems at different > clock rates. In fact, I never thought it was possible. I know I can't on > my old 2-way P166 box, but things have changed a lot since '91. It depends on the stepping, and that the external interfaces are all the same (voltage, clock speed for memory and I/O, etc.). PIII's can run this way, for sure. If you want to find out who's doing it, you only need to search the SMP list archives; it wasn't important enough for me to commit the message to memory, I only remember the fact that someone was doing it successfully. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3C902B36.4D4EB8E>