Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756964AbXKESqi (ORCPT ); Mon, 5 Nov 2007 13:46:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754152AbXKESq3 (ORCPT ); Mon, 5 Nov 2007 13:46:29 -0500 Received: from mail.acc.umu.se ([130.239.18.156]:49864 "EHLO mail.acc.umu.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753962AbXKESq2 (ORCPT ); Mon, 5 Nov 2007 13:46:28 -0500 Date: Mon, 5 Nov 2007 19:46:18 +0100 (CET) From: =?ISO-8859-1?Q?Bo_Brant=E9n?= To: "H. Peter Anvin" cc: linux-kernel@vger.kernel.org Subject: Re: x86_64 ten times slower than i386 In-Reply-To: <472F5195.2050403@zytor.com> Message-ID: References: <20071103162640.GS17536@waste.org> <472F5195.2050403@zytor.com> 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: 1733 Lines: 34 On Mon, 5 Nov 2007, H. Peter Anvin wrote: >> 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 > > What does your e820 map look like? BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000008f000 (usable) BIOS-e820: 000000000008f000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000000cf561000 (usable) BIOS-e820: 00000000cf561000 - 00000000cf56e000 (reserved) BIOS-e820: 00000000cf56e000 - 00000000cf637000 (usable) BIOS-e820: 00000000cf637000 - 00000000cf6e9000 (ACPI NVS) BIOS-e820: 00000000cf6e9000 - 00000000cf6ed000 (usable) BIOS-e820: 00000000cf6ed000 - 00000000cf6f2000 (ACPI data) BIOS-e820: 00000000cf6f2000 - 00000000cf6f3000 (usable) BIOS-e820: 00000000cf6f3000 - 00000000cf6ff000 (ACPI data) BIOS-e820: 00000000cf6ff000 - 00000000cf700000 (usable) BIOS-e820: 00000000cf700000 - 00000000d0000000 (reserved) BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 000000012c000000 (usable) - 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/