Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753882AbXJBXVm (ORCPT ); Tue, 2 Oct 2007 19:21:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751697AbXJBXVe (ORCPT ); Tue, 2 Oct 2007 19:21:34 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:53731 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751467AbXJBXVe (ORCPT ); Tue, 2 Oct 2007 19:21:34 -0400 Date: Tue, 2 Oct 2007 16:19:43 -0700 From: Arjan van de Ven To: Linus Torvalds Cc: Andrew Morton , Anders Bostr?m , linux-kernel@vger.kernel.org Subject: Re: PROBLEM: high load average when idle Message-ID: <20071002161943.15411245@laptopd505.fenrus.org> In-Reply-To: References: <20071002.233731.119908363.anders@bostrom.dyndns.org> <20071002150748.906970bc.akpm@linux-foundation.org> Organization: Intel X-Mailer: Claws Mail 3.0.1 (GTK+ 2.12.0; i386-redhat-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: 672 Lines: 15 On Tue, 2 Oct 2007 15:32:53 -0700 (PDT) > And I wonder if the same kind thing is effectively happening here: > the code is written so that it *tries* to sleep, but the rounding of > the clock basically means that it's trying to sleep using a different > clock than the one we're using to wake things up with, so some > percentage of the time it doesn't sleep at all! we're talking about a timer that (normally) is 5 seconds. - 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/