POWERNOW(4)

NAME
powernow - PowerNow! Technology support

SYNOPSIS
To load this driver as a module at boot time, place the following line in loader.conf(5):

    powernow_load="YES"

DESCRIPTION
The powernow driver provides support for the PowerNow! Technology present in AMD K8 CPUs. Please note that powerd(8) should be preferred if it is working properly on your system.

If the CPU is supported powernow creates the following variables in the machdep.powernow branch of the sysctl(3) MIB.

frequency.available
    The list of frequencies supported by powernow for the CPU (read only).

frequency.current
    The current CPU frequency (read only).

frequency.target
    The target CPU frequency (read/write).

SEE ALSO
powerd(8)

HISTORY
The powernow driver first appeared in DragonFly 2.3.