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- Supporting multiple CPU idle levels in kernel
- cpuidle
-General Information:
-Various CPUs today support multiple idle levels that are differentiated
-by varying exit latencies and power consumption during idle.
-cpuidle is a generic in-kernel infrastructure that separates
-idle policy (governor) from idle mechanism (driver) and provides a
-standardized infrastructure to support independent development of
-governors and drivers.
-cpuidle resides under drivers/cpuidle.
-Boot options:
-enables current_governor interface in /sys/devices/system/cpu/cpuidle/,
-which can be used to switch governors at run time. This boot option
-is meant for developer testing only. In normal usage, kernel picks the
-best governor based on governor ratings.
-SEE ALSO: sysfs.txt in this directory.