Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751391AbVIXDjI (ORCPT ); Fri, 23 Sep 2005 23:39:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751393AbVIXDjI (ORCPT ); Fri, 23 Sep 2005 23:39:08 -0400 Received: from scrub.xs4all.nl ([194.109.195.176]:62657 "EHLO scrub.xs4all.nl") by vger.kernel.org with ESMTP id S1751391AbVIXDjG (ORCPT ); Fri, 23 Sep 2005 23:39:06 -0400 Date: Sat, 24 Sep 2005 05:38:28 +0200 (CEST) From: Roman Zippel X-X-Sender: roman@scrub.home To: "Paul E. McKenney" cc: Thomas Gleixner , linux-kernel@vger.kernel.org, mingo@elte.hu, akpm@osdl.org, george@mvista.com, johnstul@us.ibm.com Subject: Re: [ANNOUNCE] ktimers subsystem In-Reply-To: <20050923152141.GA29941@us.ibm.com> Message-ID: References: <20050919184834.1.patchmail@tglx.tec.linutronix.de> <1127342485.24044.600.camel@tglx.tec.linutronix.de> <20050923152141.GA29941@us.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: 782 Lines: 19 Hi, On Fri, 23 Sep 2005, Paul E. McKenney wrote: > I believe Thomas is concerned about workloads that need a short-term > stable timebase. For example, a process-control application might need > to accurately measure a (say) 1500-millisecond time interval. Both > user-programmability and NTP adjustments to a given timebase could > destroy the needed measurement accuracy. NTP adjustments a quite small and not applied all at once, this means as soon as the time is synchronized, we could switch CLOCK_MONOTONIC to it. bye, Roman - 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/