From: Tom Vier <tmv@comcast.net>
To: Bill Davidsen <davidsen@tmr.com>
Cc: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
"J.A. Magallon" <jamagallon@able.es>,
Dan Maas <dmaas@maasdigital.com>,
linux-kernel@vger.kernel.org
Subject: Re: Distinguish real vs. virtual CPUs?
Date: Wed, 23 Mar 2005 12:52:26 -0500 [thread overview]
Message-ID: <20050323175226.GB3272@zero> (raw)
In-Reply-To: <42408D97.7000806@tmr.com>
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
next prev parent reply other threads:[~2005-03-23 17:52 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-22 4:29 Distinguish real vs. virtual CPUs? Pallipadi, Venkatesh
2005-03-22 21:26 ` Bill Davidsen
2005-03-22 21:38 ` Jan Engelhardt
2005-03-23 17:52 ` Tom Vier [this message]
2005-03-23 21:32 ` Bill Davidsen
-- strict thread matches above, loose matches on Subject: below --
2005-03-22 1:27 Dan Maas
2005-03-22 1:56 ` Dave Jones
2005-03-22 11:55 ` Dr. David Alan Gilbert
2005-03-22 2:01 ` Daniel Andersen
2005-03-22 2:12 ` J.A. Magallon
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