Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936619AbXJSSsv (ORCPT ); Fri, 19 Oct 2007 14:48:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S936014AbXJSSpm (ORCPT ); Fri, 19 Oct 2007 14:45:42 -0400 Received: from py-out-1112.google.com ([64.233.166.180]:43273 "EHLO py-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936359AbXJSSpj (ORCPT ); Fri, 19 Oct 2007 14:45:39 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=aYQ6ZEYwrs2ZoaRESlkM6QxcFQS7p7KwHj9y8p5EtyBbGuAcczZ4QZMa4MQeDUJw1qvIDcR51VkHuOjaRKDA3/h+u7o8K65JJfpBrmjXm5T8ScYzmvbk28HSYgLVZ6vbUMvqUiMoU91KZH1Bsb8v59pL8I6naKGcESw01xLQ5C0= Message-ID: Date: Fri, 19 Oct 2007 12:45:36 -0600 From: "Charles R Harris" To: linux-kernel@vger.kernel.org Subject: Re: [PATCH] i386: fix TSC clock source calibration error MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1173 Lines: 30 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! This may be related to bug https://bugzilla.redhat.com/show_bug.cgi?id=270321 at Redhat bugzilla. It has been easily reproducible on my machine. Chuck - 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/