Power Now and Speed Step Features in Gentoo Linux

Asked By 40 points N/A Posted on -
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Hi Guys,

I just have one quick question on how will I be able to use the Power Now and Speed Step features in Gentoo Linux. I am confuse with the instructions provided to me so please assist me on this matter.

Thank you.

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Answered By 0 points N/A #104499

Power Now and Speed Step Features in Gentoo Linux

qa-featured

 

Hi there,

In order to use the PowerNow or SpeedStep technologies in Gentoo, you first have to compile the kernel with support for these features. The process is a bit steep but can be easily learned. The process is given below

Power Management Option

  • Run-time PM core functionality
  • ACPI support

    • Processor
    • Thermal Zone
  • Cpu Frequency Scaling

    • Default CPU frequency governor

      • Performance Governor

        • Userspace governor for userspace frequency scaling
        • Ondemand cpu frequency policy governor
        • ACPI processor P-States driver
        • PowerNow/SpeedStep
  • CPU idle PM support

Then emerge cpufrequtils and edit /etc/conf.d/cpufrequtils with a preferred editor

# Options when starting cpufreq (given to the 'cpufreq-set' program)

START_OPTS="–governor ondemand"

# Options when stopping cpufreq (given to the 'cpufreq-set' program)

STOP_OPTS="–governor performance"

 Now you only have to run rc-update add cpufrequtils boot to make sure it is started every time you boot.

 

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