Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932076Ab1CKP4I (ORCPT ); Fri, 11 Mar 2011 10:56:08 -0500 Received: from mail-ew0-f46.google.com ([209.85.215.46]:37776 "EHLO mail-ew0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755838Ab1CKP4D (ORCPT ); Fri, 11 Mar 2011 10:56:03 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=Nx07/2n+EXdVSdFT5amfxe/LxTnVMx7L8yW3KDg9LkZalrb3r3OCC2DU3QcGJwF1+N /CVJCuTsPoM1D2riVJPZK03NDzoswyN1T3VcOxOXBUAyy2zx+gvLbwIJpczt/AkW7nQn neyOWnKK809dqRPzSlBe7QHUgTtMqthuu/kdg= MIME-Version: 1.0 In-Reply-To: <201103111247.00212.trenn@suse.de> References: <201103111247.00212.trenn@suse.de> Date: Fri, 11 Mar 2011 15:56:01 +0000 Message-ID: Subject: Re: [ANNOUNCE] cpupowerutils - cpufrequtils extended with quite some features From: Corentin Chary To: Thomas Renninger Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-pm@lists.linux-foundation.org, discuss@lesswatts.org, power@bughost.org, cpufreq@vger.kernel.org, linux@dominikbrodowski.net, Mattia Dongili , Len Brown , Ingo Molnar , herrmann.der.user@googlemail.com, linux-omap@vger.kernel.org, dri-devel@lists.freedesktop.org Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1370 Lines: 35 On Fri, Mar 11, 2011 at 11:46 AM, Thomas Renninger wrote: > Why is there need for another tool? > ----------------------------------- > > CPU power consumption vs performance tuning is not about > CPU frequency switching anymore for quite some time. > Deep sleep states, traditional dynamic frequency scaling and > hidden turbo/boost frequencies are tight close together and > depend on each other. The first two exist on different architectures > like PPC, Itanium and ARM the latter only on X86. > On X86 the APU (CPU+GPU) will only run most efficiently if CPU > and GPU has proper power management in place. > > Users and Developers want to have *one* tool to get an overview what their > system supports and to monitor and debug CPU power management in detail. > > The tool should compile and work on as much architectures as > possible. > Hi Thomas, Do you think handling really vendor specific "boosts" like EeePC's SHE is in cpupower scope ? Still, it would not solve the issue of setting SHE mode in a standard way, or associating it with a governor. Thanks, -- Corentin Chary http://xf.iksaif.net -- 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/