From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: a question about the numa information on my machine
Date: Tue, 19 Jul 2011 06:05:40 +0200
Message-ID: <20110719040540.GF8006@one.firstfloor.org>
References: <BANLkTik9Dxx5-9N1XD8fMA6gvkNpzidTtA@mail.gmail.com> <BANLkTim7ViQQfwddQGKzxy5ibm2SUxW2MQ@mail.gmail.com> <CAA9MpSQnPdx76ZjO4Kgdyg84FEFM3c60TY=C9ajrMKTbkRZ5gA@mail.gmail.com>
Mime-Version: 1.0
Return-path: <linux-numa-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <CAA9MpSQnPdx76ZjO4Kgdyg84FEFM3c60TY=C9ajrMKTbkRZ5gA@mail.gmail.com>
Sender: linux-numa-owner@vger.kernel.org
List-ID: <linux-numa.vger.kernel.org>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: Chia-Hung Lin <ch1028.lin@gmail.com>
Cc: linux-numa@vger.kernel.org

On Tue, Jul 19, 2011 at 11:01:08AM +0800, Chia-Hung Lin wrote:
> Hi, all,
> 
>    I just identified the problem.
>    I use Intel VTune Amplifier for profiling and it asks me to disable
> C-States to avoid system hanging.
>    Today, I popped up the idea to try to enable it and checked the
> numa information again.
>    It is o.k.! So, C-States is critical for NUMA in Nehalem Architecture?

No, C-states are orthogonal to NUMA.
-Andi