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