From mboxrd@z Thu Jan 1 00:00:00 1970 From: venkatesh.pallipadi@intel.com Subject: [patch 0/6] cpufreq: Use idle micro-accounting information in ondemand governor Date: Thu, 17 Jul 2008 13:55:54 -0700 Message-ID: <20080717205554.214645000@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=m.gmane.org+glkc-cpufreq=m.gmane.org@lists.linux.org.uk To: cpufreq@www.linux.org.uk Cc: davej@redhat.com Currently, ondemand governor uses jiffy based idle statistics which is very coarse grained. As a result, ondemand uses a big gaurd band around CPU utilization while calculating the next freq. This patchset lets ondemand use idle microaccounting when available (when tickless feature is present) and switches to a smaller gaurd band. This lets us do more aggressive power savings in partial idle workloads. Signed-off-by: Venkatesh Pallipadi --