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odroid-xu4:application_note:software:cpufrequtils_cpufreq_govornor [2019/04/19 10:12]
joy.cho [[Example] ODROID-C2]
odroid-xu4:application_note:software:cpufrequtils_cpufreq_govornor [2019/04/19 10:34] (current)
odroid [Cpufrequtils]
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 Dynamic CPU frequency scaling (also known as CPU throttling) is a technique in computer architecture where a processor is run at a less-than-maximum frequency in order to conserve power. Dynamic CPU frequency scaling (also known as CPU throttling) is a technique in computer architecture where a processor is run at a less-than-maximum frequency in order to conserve power.
  
-Setup process ​is as following.+ 
 +Here is a setup process using "​cpufrequtils"​.
  
 === 1. Install "​cpufrequtils"​ === === 1. Install "​cpufrequtils"​ ===
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 === 4. [Option] Ubuntu 18.04 - Disable ondemand.service using systemctl === === 4. [Option] Ubuntu 18.04 - Disable ondemand.service using systemctl ===
-In case of Ubuntu 18.04, ondemand.service overrides the default governor,\\ +In case of <color #​ed1c24>​**Ubuntu 18.04**</​color>​, ondemand.service overrides the default governor, so you should disable it to use cpufrequtils.
-so you should disable it to use cpufrequtils.+
 <code bash target> <code bash target>
 $ sudo systemctl disable ondemand $ sudo systemctl disable ondemand
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 </​code>​ </​code>​
  
-== Restart cpufrequtils ​==+== cpufreq-info ​==
 <code bash target> <code bash target>
 $ sudo service cpufrequtils restart $ sudo service cpufrequtils restart
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 </​code>​ </​code>​
  
-== Restart cpufrequtils ​==+== cpufreq-info ​==
 <code bash target> <code bash target>
 $ sudo service cpufrequtils restart $ sudo service cpufrequtils restart
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 </​code>​ </​code>​
  
-== Restart cpufrequtils ​==+== cpufreq-info ​==
 <code bash target> <code bash target>
 $ sudo service cpufrequtils restart $ sudo service cpufrequtils restart
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 </​code>​ </​code>​
  
-==== [Example] ODROID-C1 ​====+=== [Example] ODROID-C1 ===
  
 == Available governor and cpu frequency sets == == Available governor and cpu frequency sets ==
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 MIN_SPEED=100000 MIN_SPEED=100000
 </​code>​ </​code>​
-== restart cpufrequtils ​==+== cpufreq-info ​==
 <code bash target> <code bash target>
 $ sudo service cpufrequtils restart $ sudo service cpufrequtils restart