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howtos:hardware:cpu_frequency_scaling [2013/12/16 23:49 (UTC)]
metaschima [Kernel Config Requirements]
howtos:hardware:cpu_frequency_scaling [2013/12/19 02:27 (UTC)]
metaschima [Kernel Config Requirements]
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         * x86 CPU frequency scaling drivers         * x86 CPU frequency scaling drivers
           * Intel P state control (X86_INTEL_PSTATE [=n])\\ This driver is mutually exclusive with CONFIG_X86_ACPI_CPUFREQ. It is a newer driver for Sandy Bridge processors and [[https://​www.linuxquestions.org/​questions/​slackware-14/​slackware-64bit-14-1-rc-kernel-3-10-16-and-virtualbox-4175481316/​|may cause problems]].           * Intel P state control (X86_INTEL_PSTATE [=n])\\ This driver is mutually exclusive with CONFIG_X86_ACPI_CPUFREQ. It is a newer driver for Sandy Bridge processors and [[https://​www.linuxquestions.org/​questions/​slackware-14/​slackware-64bit-14-1-rc-kernel-3-10-16-and-virtualbox-4175481316/​|may cause problems]].
-          * Processor Clocking Control interface driver (CONFIG_X86_PCC_CPUFREQ)\\ This is only required for HP ProLiant servers, which using this interface. Otherwise, disable it.+          * Processor Clocking Control interface driver (CONFIG_X86_PCC_CPUFREQ)\\ This is only required for HP ProLiant servers, which use this interface. Otherwise, disable it.
           * ACPI Processor P-States driver (CONFIG_X86_ACPI_CPUFREQ [=y])\\ This is the recommended driver for newer CPUs Intel (Enhanced) Speedstep enabled and AMD K10 and newer.           * ACPI Processor P-States driver (CONFIG_X86_ACPI_CPUFREQ [=y])\\ This is the recommended driver for newer CPUs Intel (Enhanced) Speedstep enabled and AMD K10 and newer.
           * AMD Opteron/​Athlon64 PowerNow! (CONFIG_X86_POWERNOW_K8)\\ This is for K8/early Opteron/​Athlon64 processors.           * AMD Opteron/​Athlon64 PowerNow! (CONFIG_X86_POWERNOW_K8)\\ This is for K8/early Opteron/​Athlon64 processors.
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   * Originally written by [[wiki:​user:​markush|Markus Hutmacher]]   * Originally written by [[wiki:​user:​markush|Markus Hutmacher]]
   * Updated by [[wiki:​user:​metaschima]]   * Updated by [[wiki:​user:​metaschima]]
 +  * Descriptions of kernel options in ''​make menuconfig''​.
 <!-- * Contributions by [[wiki:​user:​yyy | User Y]] --> <!-- * Contributions by [[wiki:​user:​yyy | User Y]] -->
  

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