From owner-freebsd-amd64@FreeBSD.ORG  Mon May 23 14:50:08 2005
Return-Path: <owner-freebsd-amd64@FreeBSD.ORG>
X-Original-To: freebsd-amd64@freebsd.org
Delivered-To: freebsd-amd64@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 2764F16A41C;
	Mon, 23 May 2005 14:50:08 +0000 (GMT) (envelope-from jkim@niksun.com)
Received: from anuket.mj.niksun.com (gwnew.niksun.com [65.115.46.162])
	by mx1.FreeBSD.org (Postfix) with ESMTP id C7EED43D1F;
	Mon, 23 May 2005 14:50:07 +0000 (GMT) (envelope-from jkim@niksun.com)
Received: from [10.70.0.244] (daemon.mj.niksun.com [10.70.0.244])
	by anuket.mj.niksun.com (8.13.1/8.13.1) with ESMTP id j4NEqJoG007820;
	Mon, 23 May 2005 10:52:20 -0400 (EDT) (envelope-from jkim@niksun.com)
From: Jung-uk Kim <jkim@niksun.com>
Organization: Niksun, Inc.
To: obrien@freebsd.org
Date: Mon, 23 May 2005 10:49:55 -0400
User-Agent: KMail/1.6.2
References: <200505191431.08189.jkim@niksun.com>
	<20050523052211.GA65514@dragon.NUXI.org>
In-Reply-To: <20050523052211.GA65514@dragon.NUXI.org>
MIME-Version: 1.0
Content-Disposition: inline
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 8bit
Message-Id: <200505231049.55883.jkim@niksun.com>
X-Virus-Scanned: ClamAV 0.83/889/Sun May 22 06:18:49 2005 on
	anuket.mj.niksun.com
X-Virus-Status: Clean
Cc: rwatson@freebsd.org, freebsd-amd64@freebsd.org, freebsd-arch@freebsd.org
Subject: Re: AMD64 NUMA-awareness?
X-BeenThere: freebsd-amd64@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Porting FreeBSD to the AMD64 platform <freebsd-amd64.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-amd64>,
	<mailto:freebsd-amd64-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-amd64>
List-Post: <mailto:freebsd-amd64@freebsd.org>
List-Help: <mailto:freebsd-amd64-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-amd64>,
	<mailto:freebsd-amd64-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 23 May 2005 14:50:08 -0000

On Monday 23 May 2005 01:22 am, David O'Brien wrote:
> On Thu, May 19, 2005 at 02:31:08PM -0400, Jung-uk Kim wrote:
> > I am not sure about the meaning of 'true NUMA capable machines'
> > but AMD64 is ccNUMA unless I am completely mistaken, and
> > FreeBSD/amd64 is well-supported.  Even multicore processors are
> > available now
>
> ..snip..
>
> I am working on extracting the CPU & memory topology on AMD Opteron
> machines.  For Athlon64 X2 (dual-core) there is nothing for FreeBSD
> to do differently than today.

Great.  I am assuming you're working on ACPI SRAT/SLIT parsing, 
correct?

> Once I have the ability to nicely express the topology on an
> Opteron system, there are two heavy hitters that have said they
> will consume the bits and work on optimizing FreeBSD for Opteron
> systems.

If you need any help, let me know.

> For Intel dual-core HTT systems, there aren't any NUMA
> characteristics I'm aware of.

I believe you are correct.

Jung-uk Kim

> -- 
> -- David  (obrien@FreeBSD.org)