diff options
Diffstat (limited to 'Documentation/cpu-freq/governors.txt')
-rw-r--r-- | Documentation/cpu-freq/governors.txt | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt index 5b0cfa67aff9..9b1851297d4e 100644 --- a/Documentation/cpu-freq/governors.txt +++ b/Documentation/cpu-freq/governors.txt | |||
@@ -119,8 +119,14 @@ want the kernel to look at the CPU usage and to make decisions on | |||
119 | what to do about the frequency. Typically this is set to values of | 119 | what to do about the frequency. Typically this is set to values of |
120 | around '10000' or more. | 120 | around '10000' or more. |
121 | 121 | ||
122 | show_sampling_rate_(min|max): the minimum and maximum sampling rates | 122 | show_sampling_rate_(min|max): THIS INTERFACE IS DEPRECATED, DON'T USE IT. |
123 | available that you may set 'sampling_rate' to. | 123 | You can use wider ranges now and the general |
124 | cpuinfo_transition_latency variable (cmp. with user-guide.txt) can be | ||
125 | used to obtain exactly the same info: | ||
126 | show_sampling_rate_min = transtition_latency * 500 / 1000 | ||
127 | show_sampling_rate_max = transtition_latency * 500000 / 1000 | ||
128 | (divided by 1000 is to illustrate that sampling rate is in us and | ||
129 | transition latency is exported ns). | ||
124 | 130 | ||
125 | up_threshold: defines what the average CPU usage between the samplings | 131 | up_threshold: defines what the average CPU usage between the samplings |
126 | of 'sampling_rate' needs to be for the kernel to make a decision on | 132 | of 'sampling_rate' needs to be for the kernel to make a decision on |