Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755987Ab3C2H10 (ORCPT ); Fri, 29 Mar 2013 03:27:26 -0400 Received: from mail-ob0-f182.google.com ([209.85.214.182]:64297 "EHLO mail-ob0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754320Ab3C2H1Y (ORCPT ); Fri, 29 Mar 2013 03:27:24 -0400 MIME-Version: 1.0 In-Reply-To: <20130328181332.GD14088@htj.dyndns.org> References: <20130321001211.GC31256@htj.dyndns.org> <20130321182937.GB20500@htj.dyndns.org> <20130328181332.GD14088@htj.dyndns.org> Date: Fri, 29 Mar 2013 12:57:23 +0530 Message-ID: Subject: Re: [PATCH V3 3/7] workqueue: Add helpers to schedule work on any cpu From: Viresh Kumar To: Tejun Heo Cc: pjt@google.com, paul.mckenney@linaro.org, tglx@linutronix.de, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, linaro-kernel@lists.linaro.org, robin.randhawa@arm.com, Steve.Bannister@arm.com, Liviu.Dudau@arm.com, charles.garcia-tobin@arm.com, Arvind.Chauhan@arm.com, linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2146 Lines: 60 On 28 March 2013 23:43, Tejun Heo wrote: > Viresh, would it be difficult to make another measurement of the same > workload with the said workqueues converted to unbound? I think that > would at least provide a nice reference point. My heart is shattered after getting the results :) Cluster A15 Energy Cluster A7 Energy Total ------------------------- ----------------------- ------ Without this patchset (Energy in Joules): --------------------------------------------------- 0.151162 2.183545 2.334707 0.223730 2.687067 2.910797 0.289687 2.732702 3.022389 0.454198 2.745908 3.200106 0.495552 2.746465 3.242017 Average: 0.322866 2.619137 2.942003 With this patchset (Energy in Joules): ----------------------------------------------- 0.133361 2.267822 2.401183 0.260626 2.833389 3.094015 0.142365 2.277929 2.420294 0.246793 2.582550 2.829343 0.130462 2.257033 2.387495 Average: 0.182721 2.443745 2.626466 With WQ Unbound (Energy in Joules): ----------------------------------------------- 0.226421 2.283658 2.510079 0.151361 2.236656 2.388017 0.197726 2.249849 2.447575 0.221915 2.229446 2.451361 0.347098 2.257707 2.604805 Average: 0.2289042 2.2514632 2.4803674 PS: I have to add another generic workqueue for these tests: system_unbound_freezable_wq as block layer was using system_freezable_wq. -- viresh -- 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/