Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762706AbXJRUqQ (ORCPT ); Thu, 18 Oct 2007 16:46:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756011AbXJRUqB (ORCPT ); Thu, 18 Oct 2007 16:46:01 -0400 Received: from gateway-1237.mvista.com ([63.81.120.158]:15577 "EHLO gateway-1237.mvista.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754846AbXJRUqA (ORCPT ); Thu, 18 Oct 2007 16:46:00 -0400 Subject: Re: [PATCH] i386: fix TSC clock source calibration error From: Daniel Walker To: Dave Johnson Cc: linux-kernel@vger.kernel.org In-Reply-To: <18196.53154.100115.92459@zeus.sw.starentnetworks.com> References: <18196.53154.100115.92459@zeus.sw.starentnetworks.com> Content-Type: text/plain Date: Thu, 18 Oct 2007 13:43:34 -0700 Message-Id: <1192740214.17527.185.camel@imap.mvista.com> Mime-Version: 1.0 X-Mailer: Evolution 2.10.3 (2.10.3-4.fc7) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1209 Lines: 31 On Tue, 2007-10-16 at 10:50 -0400, Dave Johnson wrote: > > range of tsc_khz # of boots % of boots > ----------------- ---------- ---------- > < 1999750 0 0.000% > 1999750 - 1999800 21 3.048% > 1999800 - 1999850 166 24.128% > 1999850 - 1999900 241 35.029% > 1999900 - 1999950 211 30.669% > 1999950 - 2000000 42 6.105% > 2000000 - 2000000 0 0.000% > 2000050 - 2000100 0 0.000% > [...] > 2000100 - 2015000 1 0.145% << BAD > 2015000 - 2030000 6 0.872% << BAD > 2030000 - 2045000 1 0.145% << BAD > 2045000 < 0 0.000% > > The worst boot was 2032.577 Mhz, over 1.5% off! Can you tell us what type of machine this was? I've seen complaints where the SMI's can cause some other funny stuff with calibration , be no one can every reproduce anything.. Daniel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/