Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932594AbVLBBC2 (ORCPT ); Thu, 1 Dec 2005 20:02:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932596AbVLBBC2 (ORCPT ); Thu, 1 Dec 2005 20:02:28 -0500 Received: from scrub.xs4all.nl ([194.109.195.176]:13533 "EHLO scrub.xs4all.nl") by vger.kernel.org with ESMTP id S932594AbVLBBC1 (ORCPT ); Thu, 1 Dec 2005 20:02:27 -0500 Date: Fri, 2 Dec 2005 02:01:38 +0100 (CET) From: Roman Zippel X-X-Sender: roman@scrub.home To: Kyle Moffett cc: Steven Rostedt , johnstul@us.ibm.com, george@mvista.com, mingo@elte.hu, akpm@osdl.org, linux-kernel@vger.kernel.org, Thomas Gleixner , ray-gmail@madrabbit.org, Russell King Subject: Re: [patch 00/43] ktimer reworked In-Reply-To: <91D50CB6-A9B0-4501-AAD2-7D80948E7367@mac.com> Message-ID: References: <1133395019.32542.443.camel@tglx.tec.linutronix.de> <23CA09D3-4C11-4A4B-A5C6-3C38FA9C203D@mac.com> <2c0942db0512010822x1ae20622obf224ce9728e83f8@mail.gmail.com> <20051201165144.GC31551@flint.arm.linux.org.uk> <1133464097.7130.15.camel@localhost.localdomain> <91D50CB6-A9B0-4501-AAD2-7D80948E7367@mac.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: 1050 Lines: 25 Hi, On Thu, 1 Dec 2005, Kyle Moffett wrote: > > I'm not against HR timer, I have a problem with using them as timer for > > everything. > > This is _exactly_ why there is the timer/timeout distinction. Some things > don't care, and as a result use a timer wheel exactly like they always have. > For the things that do, however, the new timer API provides it using the > fastest hardware interface available. This is about kernel programming - people should care. We have enough crap as it is. timer wheel is fast as well, but everything has its limits, putting this focus completely to delivery is nonsense. It can't be that difficult to put together a decent list of criteria, where to use which timer. Both are still _timer_, introducing this timer/timeout thing is only confusing. 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/