Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756095AbZGBJqZ (ORCPT ); Thu, 2 Jul 2009 05:46:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752482AbZGBJqR (ORCPT ); Thu, 2 Jul 2009 05:46:17 -0400 Received: from one.firstfloor.org ([213.235.205.2]:58248 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751059AbZGBJqR (ORCPT ); Thu, 2 Jul 2009 05:46:17 -0400 To: xb Cc: Linux Kernel Mailing List Subject: Re: Xeon 5500 series support in kernel From: Andi Kleen References: <4A4C770F.6000709@bull.net> Date: Thu, 02 Jul 2009 11:46:16 +0200 In-Reply-To: <4A4C770F.6000709@bull.net> (xb's message of "Thu, 02 Jul 2009 10:59:59 +0200") Message-ID: <877hyrbeon.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/22.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 828 Lines: 23 xb writes: > I wonder if there are specific kernel configuration parameters that > allow to optimize performances on the recent Xeon 5500 processors (aka > Nehalem). The most important optimization is to use a 64bit kernel with NUMA support enabled (even if you use 32bit userland) > In particular, should we set CONFIG_GENERIC_CPU or CONFIG_MCORE2 on > such processors ? The kernel doesn't really care about compiler optimizations, so it shouldn't make any difference. CONFIG_GENERIC_CPU is fine. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- 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/