From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757251AbcEEXt1 (ORCPT ); Thu, 5 May 2016 19:49:27 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:36533 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755385AbcEEXtZ (ORCPT ); Thu, 5 May 2016 19:49:25 -0400 From: Steve Muckle X-Google-Original-From: Steve Muckle Date: Thu, 5 May 2016 16:49:22 -0700 To: "Rafael J. Wysocki" , Peter Zijlstra Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: cpufreq governors broken with !CONFIG_SMP? Message-ID: <20160505234922.GA14673@sky.smuckle.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org While working on a few patches for schedutil I noticed that the CFS cpufreq hooks depend on PELT, which depends on CONFIG_SMP. I compiled and ran a UP kernel with intel_pstate. Running a cpu-bound task did not result in the frequency increasing beyond fmin. For some reason ondemand is working for me with the same test, not sure why yet. It appears dbs/intel-pstate/schedutil have a dependency on CONFIG_SMP now. Or am I missing something?