Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965061AbWJCEB1 (ORCPT ); Tue, 3 Oct 2006 00:01:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932353AbWJCEB0 (ORCPT ); Tue, 3 Oct 2006 00:01:26 -0400 Received: from smtp.osdl.org ([65.172.181.4]:24781 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S932339AbWJCEB0 (ORCPT ); Tue, 3 Oct 2006 00:01:26 -0400 Date: Mon, 2 Oct 2006 21:00:53 -0700 From: Andrew Morton To: Thomas Gleixner Cc: LKML , Ingo Molnar , Jim Gettys , John Stultz , David Woodhouse , Arjan van de Ven , Dave Jones Subject: Re: [patch 00/21] high resolution timers / dynamic ticks - V2 Message-Id: <20061002210053.16e5d23c.akpm@osdl.org> In-Reply-To: <20061001225720.115967000@cruncher.tec.linutronix.de> References: <20061001225720.115967000@cruncher.tec.linutronix.de> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 984 Lines: 24 These patches make my Vaio run really really slowly. Maybe a quarter of the normal speed or lower. Bisection shows that the bug is introduced by clockevents-drivers-for-i386.patch+clockevents-drivers-for-i386-fix.patch With all patches applied, the slowdown happens with CONFIG_HIGH_RES_TIMERS=n and also with CONFIG_HIGH_RES_TIMERS=y && CONFIG_NO_HZ=y. So something got collaterally damaged. I put various helpful stuff at http://userweb.kernel.org/~akpm/x/ I uploaded all the patches I was using to http://userweb.kernel.org/~akpm/x/patches/ It doesn't seem to be a cpufreq thing: cpuinfo_min_freq=800kHz, cpuinfo_max_freq=2GHz and cpuinfo_cur_freq goes up to 2GHz under load. Wall time is increasing at one second per second. - 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/