Subject: Re: Different speed CPUs show up as same speed
To: Brett Lymn <blymn@baesystems.com.au>
From: Ken Seefried <ken@seefried.com>
List: tech-smp
Date: 06/12/2002 01:01:18
Brett Lymn writes:
> On Tue, Jun 11, 2002 at 12:57:36AM -0400, John Klos wrote:
>>
>> So the issue is a little bug - the code that reports the speed of the
>> second CPU does not actually report the speed of the second CPU. Anyone
>> feel like checking this out?
>>
>
> Wow - differing CPU clock speeds. In most MP setups I know about that
> would result in a lock up at some point in the future.
>
Sparc32 supports all sorts of odd combos of asymetrical clock speeds. My
own SS20 has been running 2x100MHz + 1x90MHz ROSS CPUs under Linux and
Solaris for quite some time. It actually came to me as a 2x100MHz ROSS +
1x75MHz Hypersparc that had been running Solaris for a while.
Ken