Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758079Ab3ENR6K (ORCPT ); Tue, 14 May 2013 13:58:10 -0400 Received: from mail-gh0-f170.google.com ([209.85.160.170]:44509 "EHLO mail-gh0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752342Ab3ENR6G (ORCPT ); Tue, 14 May 2013 13:58:06 -0400 Date: Tue, 14 May 2013 10:57:59 -0700 From: Tejun Heo To: Viresh Kumar Cc: davem@davemloft.net, airlied@redhat.com, axboe@kernel.dk, tglx@linutronix.de, peterz@infradead.org, mingo@redhat.com, rostedt@goodmis.org, linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org, robin.randhawa@arm.com, Steve.Bannister@arm.com, Liviu.Dudau@arm.com, charles.garcia-tobin@arm.com, arvind.chauhan@arm.com, linaro-kernel@lists.linaro.org, patches@linaro.org, linux-fbdev@vger.kernel.org Subject: Re: [PATCH V5 5/5] fbcon: queue work on power efficient wq Message-ID: <20130514175759.GK6795@mtj.dyndns.org> References: <89924f001e3ddd66ab41a16500569a976ea846fd.1366803121.git.viresh.kumar@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <89924f001e3ddd66ab41a16500569a976ea846fd.1366803121.git.viresh.kumar@linaro.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 947 Lines: 26 On Wed, Apr 24, 2013 at 05:12:57PM +0530, Viresh Kumar wrote: > fbcon uses workqueues and it has no real dependency of scheduling these on the > cpu which scheduled them. > > On a idle system, it is observed that and idle cpu wakes up many times just to > service this work. It would be better if we can schedule it on a cpu which the > scheduler believes to be the most appropriate one. > > This patch replaces system_wq with system_power_efficient_wq. > > Cc: Dave Airlie > Cc: linux-fbdev@vger.kernel.org > Signed-off-by: Viresh Kumar Dave, applied this to wq/for-3.11. Please holler if you want this to be routed differently. Thanks! -- tejun -- 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/