Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755014Ab1BJDq1 (ORCPT ); Wed, 9 Feb 2011 22:46:27 -0500 Received: from mga03.intel.com ([143.182.124.21]:9124 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752761Ab1BJDq0 (ORCPT ); Wed, 9 Feb 2011 22:46:26 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.60,450,1291622400"; d="scan'208";a="386686311" Date: Wed, 9 Feb 2011 19:46:56 -0800 From: Andi Kleen To: Tim Chen Cc: "Rafael J. Wysocki" , mark gross , James Bottomley , David Alan Gilbert , linux-kernel@vger.kernel.org, Len , Arjan van de Ven Subject: Re: [Patch] idle governor: Avoid lock acquisition to read pm_qos before entering idle Message-ID: <20110210034656.GA22753@gargoyle.amr.corp.intel.com> References: <1297300864.2645.128.camel@schen9-DESK> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1297300864.2645.128.camel@schen9-DESK> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 617 Lines: 17 > Signed-off-by: Tim Chen Patch looks good to me. Thanks Tim. I expect this will also improve other pm-qos users, but of course they are likely not as frequently used as the idle governour. (and before anyone makes jokes about optimizing the idle loop: idle latency is very important for workloads with lots of wakeups out of idle) -Andi -- 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/