Messages in this thread | | | Date | Wed, 23 Mar 2005 12:52:26 -0500 | From | Tom Vier <> | Subject | Re: Distinguish real vs. virtual CPUs? |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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