Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261757AbVAYAN7 (ORCPT ); Mon, 24 Jan 2005 19:13:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261742AbVAYAL2 (ORCPT ); Mon, 24 Jan 2005 19:11:28 -0500 Received: from omx3-ext.sgi.com ([192.48.171.20]:50382 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S261748AbVAYAKV (ORCPT ); Mon, 24 Jan 2005 19:10:21 -0500 Date: Mon, 24 Jan 2005 16:08:02 -0800 (PST) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: john stultz cc: lkml , Tim Schmielau , George Anzinger , albert@users.sourceforge.net, Ulrich Windl , Dominik Brodowski , David Mosberger , Andi Kleen , paulus@samba.org, schwidefsky@de.ibm.com, keith maanthey , Patricia Gaughen , Chris McDermott , Max Asbock , mahuja@us.ibm.com, Nishanth Aravamudan , Darren Hart , "Darrick J. Wong" , Anton Blanchard Subject: Re: [RFC][PATCH] new timeofday core subsystem (v. A2) In-Reply-To: <1106611416.30884.22.camel@cog.beaverton.ibm.com> Message-ID: References: <1106607089.30884.10.camel@cog.beaverton.ibm.com> <1106611416.30884.22.camel@cog.beaverton.ibm.com> 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 Content-Length: 667 Lines: 15 On Mon, 24 Jan 2005, john stultz wrote: > Yep, performance is a big concern. Re-working ntp_scale() is still on my > TODO list. I just didn't get to it in this release. This is a hopeless endeavor if you look at the function. Throw ntp_scale out and calculate a scaling factor during the ticks. At tick time then you may forward the clock a few ns in order to correct it otherwise monkey around with the scaling factor. - 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/