From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263778AbUHNPng (ORCPT ); Sat, 14 Aug 2004 11:43:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263784AbUHNPng (ORCPT ); Sat, 14 Aug 2004 11:43:36 -0400 Received: from 64.89.71.154.nw.nuvox.net ([64.89.71.154]:22994 "EHLO gate.apago.com") by vger.kernel.org with ESMTP id S263778AbUHNPnd (ORCPT ); Sat, 14 Aug 2004 11:43:33 -0400 SMTP-Relay: dogwood.freil.com Message-Id: <200408141543.i7EFhVft003498@dogwood.freil.com> X-Mailer: exmh version 2.0.2 2/24/98 To: linux-kernel@vger.kernel.org Subject: Re: Serious Kernel slowdown with HIMEM (4Gig) in 2.6.7 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 14 Aug 2004 11:43:31 -0400 From: "Lawrence E. Freil" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Aug 14, 2004 at 8:51AM William Lee Irwin III wrote: >Please try to reproduce this with CONFIG_HIGHMEM=y but using mem=700M >This will tell me something useful beyond "boot with less RAM". > >-- wli wli, I did as you suggested and booted a kernel with HIMEM set but mem set to 700M in boot params: user-defined physical RAM map: user: 0000000000000000 - 000000000009fc00 (usable) user: 000000000009fc00 - 00000000000a0000 (reserved) user: 00000000000e8000 - 0000000000100000 (reserved) user: 0000000000100000 - 000000002bc00000 (usable) 0MB HIGHMEM available. 700MB LOWMEM available. I get the same behaviour as if I had not specified HIMEM (fast directory access) The exact same kernel without the mem=700M runs slow. -- Lawrence Freil Email:lef@freil.com 1768 Old Country Place Phone:(770) 667-9274 Woodstock, GA 30188