diff options
Diffstat (limited to 'Documentation/cpuidle/sysfs.txt')
| -rw-r--r-- | Documentation/cpuidle/sysfs.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/cpuidle/sysfs.txt b/Documentation/cpuidle/sysfs.txt index 50d7b164275..b6f44f490ed 100644 --- a/Documentation/cpuidle/sysfs.txt +++ b/Documentation/cpuidle/sysfs.txt @@ -36,6 +36,7 @@ drwxr-xr-x 2 root root 0 Feb 8 10:42 state3 /sys/devices/system/cpu/cpu0/cpuidle/state0: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -45,6 +46,7 @@ total 0 /sys/devices/system/cpu/cpu0/cpuidle/state1: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -54,6 +56,7 @@ total 0 /sys/devices/system/cpu/cpu0/cpuidle/state2: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -63,6 +66,7 @@ total 0 /sys/devices/system/cpu/cpu0/cpuidle/state3: total 0 -r--r--r-- 1 root root 4096 Feb 8 10:42 desc +-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable -r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 power @@ -72,8 +76,17 @@ total 0 * desc : Small description about the idle state (string) +* disable : Option to disable this idle state (bool) -> see note below * latency : Latency to exit out of this idle state (in microseconds) * name : Name of the idle state (string) * power : Power consumed while in this idle state (in milliwatts) * time : Total time spent in this idle state (in microseconds) * usage : Number of times this state was entered (count) + +Note: +The behavior and the effect of the disable variable depends on the +implementation of a particular governor. In the ladder governor, for +example, it is not coherent, i.e. if one is disabling a light state, +then all deeper states are disabled as well, but the disable variable +does not reflect it. Likewise, if one enables a deep state but a lighter +state still is disabled, then this has no effect. |