Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754734AbYHLV5x (ORCPT ); Tue, 12 Aug 2008 17:57:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752578AbYHLV5T (ORCPT ); Tue, 12 Aug 2008 17:57:19 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:43541 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752316AbYHLV5S (ORCPT ); Tue, 12 Aug 2008 17:57:18 -0400 Date: Tue, 12 Aug 2008 23:58:35 +0200 From: Pavel Machek To: Venki Pallipadi Cc: David Woodhouse , "linux-kernel@vger.kernel.org" , Thomas Gleixner , Ingo Molnar , "arjan@infradead.org" Subject: Re: [RFC] Imprecise timers. Message-ID: <20080812215834.GB12911@elf.ucw.cz> References: <1216695757.18980.16.camel@shinybook.infradead.org> <7E82351C108FA840AB1866AC776AEC4608E23BE7@orsmsx505.amr.corp.intel.com> <20080809125447.GA13169@ucw.cz> <20080811173526.GA28661@linux-os.sc.intel.com> <20080812120031.GD8806@elf.ucw.cz> <20080812181126.GA30061@linux-os.sc.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080812181126.GA30061@linux-os.sc.intel.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 843 Lines: 22 Hi! > Instead a rounded timer after 5 seconds still ensures atleast 1s idle time on > the CPU without the overhead. > > There can be many users who really don't care about the deadline or can happliy > use rounded timers or deferrable timers. Say garbage collectors, cache_reap > and friends, ondemand governor, vga cursor blinking comes to my mind. Ok, maybe. But don't try to play with vga cursor blinking; any irregularity there will be _very_ visible_. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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/