Re: Distinguish real vs. virtual CPUs?

[Tom Vier <tmv@comcast.net>]

On Tue, Mar 22, 2005 at 04:26:47PM -0500, Bill Davidsen wrote:
> It's not clear if that's bizarre practice on AMD system boards or if 
> it's mis-reported. Of course Tom may be running a NUMA setup, in which 
> case I won't guess what's expected to be displayed. I've added him to 
> the CC list, in hopes of comment.

It's numa (two cores, one ram ctrlr per core, one core per package). I'm
running an x86 kernel, btw, not 64bit. I have CONFIG_X86_HT set, and it
looks like it gets the pkg id from the apic (there's only one in multicore
packages?), but i might be reading it wrong.

My dmseg overflows before syslog starts, so all i could gather is: 

Mar 23 12:04:25 zero kernel: Brought up 2 CPUs
Mar 23 12:04:25 zero kernel: CPU0 attaching sched-domain:
Mar 23 12:04:25 zero kernel:  domain 0: span 3
Mar 23 12:04:25 zero kernel:   groups: 1 2
Mar 23 12:04:25 zero kernel: CPU1 attaching sched-domain:
Mar 23 12:04:25 zero kernel:  domain 0: span 3
Mar 23 12:04:25 zero kernel:   groups: 2 1

I don't know how the scheduling domains work, and i'm too busy to look it up
right now.

-- 
Tom Vier <tmv@comcast.net>
DSA Key ID 0x15741ECE
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