From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755613AbYDFQau (ORCPT ); Sun, 6 Apr 2008 12:30:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753956AbYDFQam (ORCPT ); Sun, 6 Apr 2008 12:30:42 -0400 Received: from wr-out-0506.google.com ([64.233.184.239]:41657 "EHLO wr-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753539AbYDFQam (ORCPT ); Sun, 6 Apr 2008 12:30:42 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=DPS6Us38Vs5lfMxkBXF9xLkwquDfW49aDISqvK0g7UYkIcTSCWUGbVyeIy2ElM2BH9waHjJy2S1A7DEeasMNcLQ1GRLauz4HgXXltNddZKP35ECKCaszapb5bBI+9n2h2Ro8Qz6zqEx0gaCzxy0/GpX/+dv1ZzZ2952emzNo4+U= Message-ID: Date: Sun, 6 Apr 2008 17:30:40 +0100 From: "Jack Harvard" To: linux-kernel@vger.kernel.org Subject: How does Linux measure CPU frequency? 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 List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I want to find out how Linux calibrates the frequency of CPUs, and want to compare with the way how lmbench measures processor frequency. I had a thorough google search of this topic but didn't get too much useful results. Thanks a lot, Jack