DragonFly On-Line Manual Pages
POWERD(8) DragonFly System Manager's Manual POWERD(8)
powerd -- simple ACPI based CPU/power control
powerd [-dt] [-p hysteresis] [-u trigger_up]
The powerd daemon monitors the CPU load and automatically adjusts the CPU
frequency up or down.
All CPUs will be set to their maximum frequency when the 1 second machine
load exceeds 25% of one CPU. All CPUs will be set to their minimum fre-
quency when the 10 second machine load drops below 12% of one CPU.
The options are as follows:
-d Debug option. Causes powerd to not go to the background
and prints some debug output to stdout.
-p hysteresis Percent of the upper limit to subtract as an hysteresis
value to scale down to the min frequency.
-t Turbo mode. Disables switching to turbo mode as maximum
frequency completely. Switching to turbo mode as maximum
frequency is enabled by default, if the CPU supports it.
-u trigger_up Per CPU load limit in percent to force maximum frequency.
The powerd utility will exit with a non-zero code if the required sysctls
are not present.
acpi(4), est(4), powernow(4)
The powerd command first appeared in DragonFly 2.7.
I'm shocked I tell you, shocked that there might be bugs in this program!
DragonFly 4.1 October 28, 2014 DragonFly 4.1