From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262392AbVGHAl0 (ORCPT ); Thu, 7 Jul 2005 20:41:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262398AbVGHAl0 (ORCPT ); Thu, 7 Jul 2005 20:41:26 -0400 Received: from mo.optusnet.com.au ([203.10.68.101]:12434 "EHLO mo.optusnet.com.au") by vger.kernel.org with ESMTP id S262392AbVGHAlY (ORCPT ); Thu, 7 Jul 2005 20:41:24 -0400 To: Sheo Shanker Prasad Cc: linux-kernel@vger.kernel.org Subject: Re: Disturbing wide variation in execution time References: <200507062344.53615.ssp@creativeresearch.org> From: michael@optusnet.com.au Date: 08 Jul 2005 10:41:54 +1000 In-Reply-To: <200507062344.53615.ssp@creativeresearch.org> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.4 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Sheo Shanker Prasad writes: [...] > When the repaired machine was started, I began to notice the disturbing wide > variation and the frequect significant slow down of the machine as exhibited > by the factor of 2 to 2.5 increased execution time of the test program as > described above. Sometimes it would be quite fast (executing at the original > 2m 40s) and sometime a factor of 2.5 slow, and sometimes with speed in > between. Something stuffed on the CPU heatsink causing thermal speed throttling? Just a wild guess. Michael.