diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/cpu-freq/governors.txt | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt index b85481acd0ca..933fae74c337 100644 --- a/Documentation/cpu-freq/governors.txt +++ b/Documentation/cpu-freq/governors.txt | |||
@@ -9,6 +9,7 @@ | |||
9 | 9 | ||
10 | 10 | ||
11 | Dominik Brodowski <linux@brodo.de> | 11 | Dominik Brodowski <linux@brodo.de> |
12 | some additions and corrections by Nico Golde <nico@ngolde.de> | ||
12 | 13 | ||
13 | 14 | ||
14 | 15 | ||
@@ -25,6 +26,7 @@ Contents: | |||
25 | 2.1 Performance | 26 | 2.1 Performance |
26 | 2.2 Powersave | 27 | 2.2 Powersave |
27 | 2.3 Userspace | 28 | 2.3 Userspace |
29 | 2.4 Ondemand | ||
28 | 30 | ||
29 | 3. The Governor Interface in the CPUfreq Core | 31 | 3. The Governor Interface in the CPUfreq Core |
30 | 32 | ||
@@ -86,7 +88,7 @@ highest frequency within the borders of scaling_min_freq and | |||
86 | scaling_max_freq. | 88 | scaling_max_freq. |
87 | 89 | ||
88 | 90 | ||
89 | 2.1 Powersave | 91 | 2.2 Powersave |
90 | ------------- | 92 | ------------- |
91 | 93 | ||
92 | The CPUfreq governor "powersave" sets the CPU statically to the | 94 | The CPUfreq governor "powersave" sets the CPU statically to the |
@@ -94,7 +96,7 @@ lowest frequency within the borders of scaling_min_freq and | |||
94 | scaling_max_freq. | 96 | scaling_max_freq. |
95 | 97 | ||
96 | 98 | ||
97 | 2.2 Userspace | 99 | 2.3 Userspace |
98 | ------------- | 100 | ------------- |
99 | 101 | ||
100 | The CPUfreq governor "userspace" allows the user, or any userspace | 102 | The CPUfreq governor "userspace" allows the user, or any userspace |
@@ -103,6 +105,14 @@ by making a sysfs file "scaling_setspeed" available in the CPU-device | |||
103 | directory. | 105 | directory. |
104 | 106 | ||
105 | 107 | ||
108 | 2.4 Ondemand | ||
109 | ------------ | ||
110 | |||
111 | The CPUfreq govenor "ondemand" sets the CPU depending on the | ||
112 | current usage. To do this the CPU must have the capability to | ||
113 | switch the frequency very fast. | ||
114 | |||
115 | |||
106 | 116 | ||
107 | 3. The Governor Interface in the CPUfreq Core | 117 | 3. The Governor Interface in the CPUfreq Core |
108 | ============================================= | 118 | ============================================= |