Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756721AbXKEQA1 (ORCPT ); Mon, 5 Nov 2007 11:00:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752422AbXKEQAR (ORCPT ); Mon, 5 Nov 2007 11:00:17 -0500 Received: from mail.acc.umu.se ([130.239.18.156]:43008 "EHLO mail.acc.umu.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752111AbXKEQAQ (ORCPT ); Mon, 5 Nov 2007 11:00:16 -0500 Date: Mon, 5 Nov 2007 17:00:05 +0100 (CET) From: =?ISO-8859-1?Q?Bo_Brant=E9n?= To: linux-kernel@vger.kernel.org Subject: Re: x86_64 ten times slower than i386 In-Reply-To: Message-ID: References: <20071103162640.GS17536@waste.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 920 Lines: 17 After I uppgraded the BIOS the mtrr looks like below, and now it works if I boot with mem=4736M so I can use all memory but it still doesn't work without the mem parameter then it will run as slow as before. reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1 reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1 reg02: base=0xc0000000 (3072MB), size= 256MB: write-back, count=1 reg03: base=0xcf800000 (3320MB), size= 8MB: uncachable, count=1 reg04: base=0xcf700000 (3319MB), size= 1MB: uncachable, count=1 reg05: base=0x100000000 (4096MB), size= 512MB: write-back, count=1 reg06: base=0x120000000 (4608MB), size= 128MB: write-back, count=1 - 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/