Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754535AbZGWWFt (ORCPT ); Thu, 23 Jul 2009 18:05:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754162AbZGWWFt (ORCPT ); Thu, 23 Jul 2009 18:05:49 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:39164 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753664AbZGWWFs (ORCPT ); Thu, 23 Jul 2009 18:05:48 -0400 Date: Thu, 23 Jul 2009 15:05:17 -0700 From: Andrew Morton To: Corrado Zoccolo Cc: venkatesh.pallipadi@intel.com, abelay@novell.com, linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] cpuidle: menu governor: reduce latency on exit Message-Id: <20090723150517.fbbd03dc.akpm@linux-foundation.org> In-Reply-To: <200907191659.47179.czoccolo@gmail.com> References: <200907191659.47179.czoccolo@gmail.com> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.20; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 692 Lines: 18 On Sun, 19 Jul 2009 16:59:46 +0200 Corrado Zoccolo wrote: > This patch moves the state residency accounting and statistics > computation off the hot exit path. > On exit, the need to recompute statistics is recorded, and new > statistics will be computed when menu_select is called again. > Was there any observed and/or measured effect as a result of this patch? If so, please send a description of that effect, thanks. -- 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/