From mboxrd@z Thu Jan 1 00:00:00 1970 From: GoatZilla Subject: Re: [2.6 PATCH] Missing default governors choices Date: Thu, 26 Aug 2004 15:23:24 -0400 Sender: cpufreq-bounces@www.linux.org.uk Message-ID: <39e3484804082612234137d865@mail.gmail.com> References: <88056F38E9E48644A0F562A38C64FB6002B5F40B@scsmsx403.amr.corp.intel.com> Reply-To: GoatZilla Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <88056F38E9E48644A0F562A38C64FB6002B5F40B@scsmsx403.amr.corp.intel.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Content-Type: text/plain; charset="us-ascii" To: cpufreq@www.linux.org.uk What's the reason for the powersave governor not being selectable as default? On Thu, 26 Aug 2004 09:40:08 -0700, Pallipadi, Venkatesh wrote: > > > Ondemand govrenor not being one of the default governors is intentional. > > Ondemand governor is in-kernel cpu frequency governor, that will > Be beneficial for CPUs that supports frequency change with low > transition_latency. If transition_latency is high, the ondemand governor > > initialization will fail (User level governor is suggested in this > case). > Hence it cannot be used as a default governor. > > Thanks, > Venki > > > > >-----Original Message----- > >From: cpufreq-bounces@www.linux.org.uk > >[mailto:cpufreq-bounces@www.linux.org.uk] On Behalf Of Michal Rokos > >Sent: Thursday, August 26, 2004 12:07 AM > >To: cpufreq@www.linux.org.uk > >Cc: linux-kernel@vger.kernel.org > >Subject: [2.6 PATCH] Missing default governors choices > > > >Hello, > > > >aren't these 2 missing in "Default CPUFreq governor" menu? > > > >Thank you. > > > > Michal > > > >PS: CC to me (I'm off the lists) > > > ># This is a BitKeeper generated diff -Nru style patch. > ># > ># ChangeSet > ># 2004/08/26 08:57:24+02:00 michal@rokos.info > ># Add missing governors to "Default CPUFreq governor" menu. > ># > ># drivers/cpufreq/Kconfig > ># 2004/08/26 08:57:13+02:00 michal@rokos.info +16 -0 > ># Add missing governors to "Default CPUFreq governor" menu. > ># > >diff -Nru a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig > >--- a/drivers/cpufreq/Kconfig 2004-08-26 09:00:15 +02:00 > >+++ b/drivers/cpufreq/Kconfig 2004-08-26 09:00:15 +02:00 > >@@ -27,6 +27,14 @@ > > the frequency statically to the highest frequency supported by > > the CPU. > > > >+config CPU_FREQ_DEFAULT_GOV_POWERSAVE > >+ bool "powersave" > >+ select CPU_FREQ_GOV_POWERSAVE > >+ help > >+ Use the CPUFreq governor 'powersave' as default. This sets > >+ the frequency statically to the lowest frequency supported by > >+ the CPU. > >+ > > config CPU_FREQ_DEFAULT_GOV_USERSPACE > > bool "userspace" > > select CPU_FREQ_GOV_USERSPACE > >@@ -35,6 +43,14 @@ > > you to set the CPU frequency manually or when an userspace > > programm shall be able to set the CPU dynamically without having > > to enable the userspace governor manually. > >+ > >+config CPU_FREQ_DEFAULT_GOV_ONDEMAND > >+ bool "ondemand" > >+ select CPU_FREQ_GOV_ONDEMAND > >+ help > >+ Use the CPUFreq governor 'ondemand' as default. This does > >+ a periodic polling and changes frequency based on the CPU > >+ utilization. > > > > endchoice > > > > > > > >_______________________________________________ > >Cpufreq mailing list > >Cpufreq@www.linux.org.uk > >http://www.linux.org.uk/mailman/listinfo/cpufreq > > > > _______________________________________________ > Cpufreq mailing list > Cpufreq@www.linux.org.uk > http://www.linux.org.uk/mailman/listinfo/cpufreq >