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    CPUFreq help?

    Discussion in 'Linux Compatibility and Software' started by Jobine, Jan 9, 2014.

  1. Jobine

    Jobine Notebook Prophet

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    Right now, my CPU keeps staying at 2.4ghz (across all four cores) on idle, which is killing my battery. Any way for me to downscale the CPU to 800mhz on idle and only bump up the frequency when needed? Windows does this automatically under "Balanced" mode. I heard i can use CPUFreq to do this, any help?
     
    Jobine, Jan 9, 2014
    #1
  2. Mr.Koala

    Mr.Koala Notebook Virtuoso

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    What model and what CPU?
     
    Mr.Koala, Jan 13, 2014
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  3. hummer010

    hummer010 Notebook Enthusiast

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    How are you determining what the clock speed is? With my Haswell, I find that even with the governor set to powersave, my CPU generally reports 2.4GHz all the time.

    With Haswell, it seems to me, that cpu frequency is less important than the C6 and C7 power saving states. You can use i7z to see what the frequency is, and what percentage of time each core is staying in each power save state.
     
    hummer010, Jan 13, 2014
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  4. ALLurGroceries

    ALLurGroceries  Vegan Vermin Super Moderator

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    Yes, please post your CPU model and distro, otherwise we don't know what you're working with! ;)
     
    ALLurGroceries, Jan 13, 2014
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  5. Mr.Koala

    Mr.Koala Notebook Virtuoso

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    On new Intel platforms, the standard CPU governor is replaced by Intel's own pstate driver by default.
     
    Mr.Koala, Jan 13, 2014
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