From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: [patch v7 0/21] sched: power aware scheduling Date: Mon, 15 Apr 2013 11:52:03 +0200 Message-ID: <20130415095203.GA26524@pd.tnic> References: <1365040862-8390-1-git-send-email-alex.shi@intel.com> <516724F5.20504@kernel.org> <5167C9FA.8050406@intel.com> <20130412162348.GE2368@pd.tnic> <516A0652.8040505@intel.com> <20130414155925.GC20547@pd.tnic> <516B9859.70004@intel.com> <516B9B57.3030902@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Received: from mail.skyhub.de ([78.46.96.112]:40721 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751169Ab3DOJwO (ORCPT ); Mon, 15 Apr 2013 05:52:14 -0400 Content-Disposition: inline In-Reply-To: <516B9B57.3030902@intel.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Alex Shi Cc: Len Brown , mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, akpm@linux-foundation.org, arjan@linux.intel.com, pjt@google.com, namhyung@kernel.org, efault@gmx.de, morten.rasmussen@arm.com, vincent.guittot@linaro.org, gregkh@linuxfoundation.org, preeti@linux.vnet.ibm.com, viresh.kumar@linaro.org, linux-kernel@vger.kernel.org, len.brown@intel.com, rafael.j.wysocki@intel.com, jkosina@suse.cz, clark.williams@gmail.com, tony.luck@intel.com, keescook@chromium.org, mgorman@suse.de, riel@redhat.com, Linux PM list On Mon, Apr 15, 2013 at 02:16:55PM +0800, Alex Shi wrote: > And I need to say again. the powersaving policy just effect on system > under utilisation. when system goes busy, it won't has effect. > performance oriented policy will take over balance behaviour. And AFACU your patches, you do this automatically, right? In which case, an underutilized system will have switched to powersaving balancing and will use *more* energy to retire the workload. Correct? -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --