From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263015AbUEQWYx (ORCPT ); Mon, 17 May 2004 18:24:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262954AbUEQWYw (ORCPT ); Mon, 17 May 2004 18:24:52 -0400 Received: from fw.osdl.org ([65.172.181.6]:64678 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S263059AbUEQWYG (ORCPT ); Mon, 17 May 2004 18:24:06 -0400 Date: Mon, 17 May 2004 15:26:38 -0700 From: Andrew Morton To: Alastair Stevens Cc: linux-kernel@vger.kernel.org Subject: Re: Linux 2.6.6 appears to be 3 to 4 times slower than 2.6.5 Message-Id: <20040517152638.42e9085c.akpm@osdl.org> In-Reply-To: <40A8CB2E.1070108@mrc-bsu.cam.ac.uk> References: <40A8CB2E.1070108@mrc-bsu.cam.ac.uk> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i586-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Alastair Stevens wrote: > > Another "me too" I'm afraid. I'm running 2.6.6 on an ordinary UP Athlon > system under Gentoo, and it behaves very strangely. About 3 out of 4 times, > it hangs during boot-up, at the "Freeing unused kernel memory" stage, and > seems to not get as far as calling init.... > > Yesterday, it got past that stage, and the various startup scripts began to > run, but *achingly* slowly. It took about 10 minutes to get most of the > network services started, with no login prompt in sight - I got fed up and > rebooted then, because I needed to get some work done! Please try again and if it gets all the way to a login prompt, compare the contents of /proc/mtrr with 2.6.6-rc3. Also play around with `top', etc. See if there's anything unusual happening.