Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932367AbaGWJDd (ORCPT ); Wed, 23 Jul 2014 05:03:33 -0400 Received: from sema.semaphore.gr ([78.46.194.137]:45525 "EHLO sema.semaphore.gr" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S932194AbaGWJDb (ORCPT ); Wed, 23 Jul 2014 05:03:31 -0400 Message-ID: <53CF79D9.5000804@semaphore.gr> Date: Wed, 23 Jul 2014 12:01:13 +0300 From: Stratos Karafotis User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: "Rafael J. Wysocki" CC: viresh.kumar@linaro.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/2] cpufreq: ondemand: Eliminate the deadband effect References: <1404147574-17422-1-git-send-email-stratosk@semaphore.gr> <1513010.lqhBUJhHsL@vostro.rjw.lan> In-Reply-To: <1513010.lqhBUJhHsL@vostro.rjw.lan> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/23/2014 02:50 AM, Rafael J. Wysocki wrote: > On Monday, June 30, 2014 07:59:32 PM Stratos Karafotis wrote: >> Hi all, >> >> This patchset changes slightly the calculation of target frequency to >> eliminate the deadband effect (explained in patch 2 changelog) that it >> seems to slow down the CPU in low and medium loads. >> >> Patch 1 introduces a new relation (RELATION_C) for the next frequency >> selection, which chooses the closest frequency to target. >> >> Patch 2 is the actual change to ondemand governor. >> >> You may find graphs with the 'deadband' effect and benchmark results: >> https://docs.google.com/spreadsheets/d/16kDBh5lyc6YvBnoS1hUa1t2O38z0xrWvaEj5XtJ8auw/edit#gid=2072493052 >> >> Thanks >> >> >> Stratos Karafotis (2): >> cpufreq: Introduce new relation for freq selection >> cpufreq: ondemand: Eliminate the deadband effect in low loads >> >> drivers/cpufreq/cpufreq_ondemand.c | 11 +++++++---- >> drivers/cpufreq/freq_table.c | 12 +++++++++++- >> include/linux/cpufreq.h | 1 + >> 3 files changed, 19 insertions(+), 5 deletions(-) > > OK, I've queued up these two patches for 3.17. We'll see if anyone sees > any problems related to them. Thanks! > Thank you! Stratos -- 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/