From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Oteiza Subject: PROBLEM: cpuidle: Quickly notice prediction failure for repeat mode Date: Thu, 19 Dec 2013 14:51:59 -0500 Message-ID: <20131219195159.GB16912@holos> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="gatW/ieO32f1wygP" Return-path: Received: from mail-qa0-f47.google.com ([209.85.216.47]:61178 "EHLO mail-qa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754993Ab3LSTvC (ORCPT ); Thu, 19 Dec 2013 14:51:02 -0500 Received: by mail-qa0-f47.google.com with SMTP id w5so5160921qac.20 for ; Thu, 19 Dec 2013 11:51:01 -0800 (PST) Received: from localhost (c-68-55-201-85.hsd1.md.comcast.net. [68.55.201.85]) by mx.google.com with ESMTPSA id r5sm11388783qaj.13.2013.12.19.11.51.00 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 19 Dec 2013 11:51:00 -0800 (PST) Content-Disposition: inline Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: linux-pm@vger.kernel.org --gatW/ieO32f1wygP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, Commit 1485191 causes a regression on my hardware (laptop) manifesting itself as increased power consumption when playing music on mpd using pulseaudio. I bisected to find 1485191. I tested the commit it reverts (69a37bea), and the commit prior 69a37bea, e34a00d6. Here's a summary: status sha power coretemp --------------------------------- BAD 14851912 14W 54C GOOD 228b3023 9W 47C GOOD 69a37bea ~8.8W 47C GOOD e45a00d6 ~9.3W 47C I thought it was strange that it happens only with that combination of audio software, so I was happy to patch out that changeset which was bad for me. Past 3.12 (now on 3.12.5), the issue persists and I'm not sure I can easily merge anymore. I attached some info I hope will be helpful. Thanks, -- Mark Oteiza --gatW/ieO32f1wygP Content-Type: text/plain; charset=us-ascii; name="cpuidle.log" Content-Disposition: attachment; filename="cpuidle.log" Content-Transfer-Encoding: base64 Pz8fPwY/e2scPyptPz8/P1g/Px0/Pz8cPz9uP3c/Pz8/dT8odT9lPz8iP01pP1seaj9iPz9s a20/P1seaj9iPwg/P08/P28/Pz95Pz8/Pz90Pz91Pz8/P2c/Pz9dPz8/emptPz8/Pz8uPz8u alw/P2Y/Pz8/anoldj8/PyonDQo/P2o/Pz8/XnI/P3p7Zj94P2paPz8/P3pnPz8/Pw4/Lj8/ P2o/Pz8/P2p4Hj8/Py4pPz8aJT8/Pz8/QEQhP0g/P0RBDD00Pz83Pz9tdT9NAhE9Pz98fD8/ --gatW/ieO32f1wygP--