path: root/Documentation
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authorAllen Martin <>2011-06-30 23:54:07 -0700
committerDan Willemsen <>2011-11-30 21:38:52 -0800
commit66821d56b03f6a9e8eb84a65836b6f01ebf4e556 (patch)
tree9b7ec2017a376a3b99fe3527ed7015d03d502312 /Documentation
parent6da168643910cde533b1e10ca1454fa8fdc0e088 (diff)
Documentation: cpufreq: add description of timer_rate
Add description of timer_rate tunable and clean up some typos. Change-Id: I4b96a36aad51eed3bef0ee5f571dc6e0a94c8dd9 Signed-off-by: Allen Martin <>
Diffstat (limited to 'Documentation')
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt
index e891e5180731..51b1cd360c33 100644
--- a/Documentation/cpu-freq/governors.txt
+++ b/Documentation/cpu-freq/governors.txt
@@ -215,10 +215,10 @@ to MAX speed.
If the cpu was not sufficiently busy to immediately ramp to MAX speed,
then governor evaluates the cpu load since the last speed adjustment,
-choosing th highest value between that longer-term load or the
+choosing the highest value between that longer-term load or the
short-term load since idle exit to determine the cpu speed to ramp to.
-The tuneable value for this governor are:
+The tuneable values for this governor are:
min_sample_time: The minimum amount of time to spend at the current
frequency before ramping down. This is to ensure that the governor has
@@ -228,6 +228,8 @@ workload. Default is 80000 uS.
go_maxspeed_load: The CPU load at which to ramp to max speed. Default
is 85.
+timer_rate: Sample rate for reevaluating cpu load when the system is
+not idle. Default is 30000 uS.
3. The Governor Interface in the CPUfreq Core