From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752767Ab3B1Mjs (ORCPT ); Thu, 28 Feb 2013 07:39:48 -0500 Received: from mail.pr.hu ([87.242.0.5]:36347 "EHLO mail.pr.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751937Ab3B1Mjr (ORCPT ); Thu, 28 Feb 2013 07:39:47 -0500 X-Greylist: delayed 2292 seconds by postgrey-1.27 at vger.kernel.org; Thu, 28 Feb 2013 07:39:46 EST Message-ID: <512F4716.4050802@pr.hu> Date: Thu, 28 Feb 2013 13:01:26 +0100 From: Boszormenyi Zoltan User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130219 Thunderbird/17.0.3 MIME-Version: 1.0 To: lkml Subject: loadavg question Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: -1.9 (-) X-Scan-Signature: 3be2f66aaf20b59cd4b0edf337d6e8f4 X-Spam-Tracer: backend.mail.pr.hu -1.9 20130228115952Z Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, on an embedded PC (500MHz AMD Geode), we recently tried to upgrade the kernel. The original version was 2.6.27, the new ones were 3.3.x and 3.7.x. With the same userspace (a GTK based GUI constantly querying daemons handling different pieces of hardware over serial ports), we noticed that loadavg is different while the idle time (95-97%) is the same. On 2.6.27, the load was around 0.05-0.3 while on 3.3.x and 3.7.x, it quickly crawled up to around 5. Has the load calculation changed so dramatically after 2.6.27? Thanks in advance, Zoltán Böszörményi