From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262820AbVGNCIf (ORCPT ); Wed, 13 Jul 2005 22:08:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261567AbVGNCIf (ORCPT ); Wed, 13 Jul 2005 22:08:35 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:32143 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S262820AbVGNCI1 (ORCPT ); Wed, 13 Jul 2005 22:08:27 -0400 Subject: Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt From: Lee Revell To: dean gaudet Cc: Chris Wedgwood , Andrew Morton , "Brown, Len" , dtor_core@ameritech.net, torvalds@osdl.org, vojtech@suse.cz, david.lang@digitalinsight.com, davidsen@tmr.com, kernel@kolivas.org, linux-kernel@vger.kernel.org, mbligh@mbligh.org, diegocg@gmail.com, azarah@nosferatu.za.org, christoph@lameter.com In-Reply-To: References: <42D540C2.9060201@tmr.com> <20050713184227.GB2072@ucw.cz> <1121282025.4435.70.camel@mindpipe> <1121286258.4435.98.camel@mindpipe> <20050713134857.354e697c.akpm@osdl.org> <20050713211650.GA12127@taniwha.stupidest.org> <20050714005106.GA16085@taniwha.stupidest.org> Content-Type: text/plain Date: Wed, 13 Jul 2005 22:08:24 -0400 Message-Id: <1121306904.4435.132.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.2.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2005-07-13 at 18:13 -0700, dean gaudet wrote: > http://www.microsoft.com/whdc/system/CEC/mm-timer.mspx Did anyone else find this strange: "The RTC is used in periodic mode to provide the system profiling interrupt on uni-processor systems and the clock interrupt on multi-processor systems." We just take NR_CPUS * HZ timer interrupts per second, what's the advantage of using the RTC? Lee