Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755639AbaAHIhk (ORCPT ); Wed, 8 Jan 2014 03:37:40 -0500 Received: from merlin.infradead.org ([205.233.59.134]:52208 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755050AbaAHIhe (ORCPT ); Wed, 8 Jan 2014 03:37:34 -0500 Date: Wed, 8 Jan 2014 09:37:16 +0100 From: Peter Zijlstra To: Alex Shi Cc: Morten Rasmussen , Vincent Guittot , Dietmar Eggemann , "linux-kernel@vger.kernel.org" , "mingo@kernel.org" , "pjt@google.com" , "cmetcalf@tilera.com" , "tony.luck@intel.com" , "preeti@linux.vnet.ibm.com" , "linaro-kernel@lists.linaro.org" , "paulmck@linux.vnet.ibm.com" , "corbet@lwn.net" , "tglx@linutronix.de" , "len.brown@intel.com" , "arjan@linux.intel.com" , "amit.kucheria@linaro.org" , "james.hogan@imgtec.com" , "schwidefsky@de.ibm.com" , "heiko.carstens@de.ibm.com" Subject: Re: [RFC] sched: CPU topology try Message-ID: <20140108083716.GA7572@laptop.programming.kicks-ass.net> References: <1387372431-2644-1-git-send-email-vincent.guittot@linaro.org> <52B87149.4010801@arm.com> <20140106163123.GN31570@twins.programming.kicks-ass.net> <20140107132220.GZ31570@twins.programming.kicks-ass.net> <20140107141059.GY3694@twins.programming.kicks-ass.net> <20140107154154.GH2936@e103034-lin> <20140107204951.GD2480@laptop.programming.kicks-ass.net> <52CD0D12.6020108@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52CD0D12.6020108@linaro.org> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 08, 2014 at 04:32:18PM +0800, Alex Shi wrote: > In my old power aware scheduling patchset, I had tried the 95 to 99. But > all those values will lead imbalance when we test while(1) like cases. > like in a 24LCPUs groups, 24*5% > 1. So, finally use 100% as overload > indicator. And in testing 100% works well to find overload since few > system service involved. :) Ah indeed, so 100% it is ;-) -- 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/