From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264088AbUEXHog (ORCPT ); Mon, 24 May 2004 03:44:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264131AbUEXHog (ORCPT ); Mon, 24 May 2004 03:44:36 -0400 Received: from smtp105.mail.sc5.yahoo.com ([66.163.169.225]:48791 "HELO smtp105.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S264088AbUEXHoe (ORCPT ); Mon, 24 May 2004 03:44:34 -0400 Message-ID: <40B1A7DE.8080309@yahoo.com.au> Date: Mon, 24 May 2004 17:44:30 +1000 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040401 Debian/1.6-4 X-Accept-Language: en MIME-Version: 1.0 To: Phy Prabab CC: William Lee Irwin III , Andrew Morton , jakob@unthought.net, linux-kernel@vger.kernel.org Subject: Re: Help understanding slow down References: <20040524072107.63774.qmail@web90005.mail.scd.yahoo.com> In-Reply-To: <20040524072107.63774.qmail@web90005.mail.scd.yahoo.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Phy Prabab wrote: > For more information, I ran the same test on 2.4.21 ... Is hyperthreading enabled on 2.6 and 2.4? Can you send a cat /proc/cpuinfo | grep processor for a 2.4 and a 2.6 kernel please? If you have hyperthreading enabled, try 2.6.7-rc1 with SMT (hyperthreading) scheduler support enabled in the kernel config. It is in processor type and features menu.