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Documentation: cpufreq: add description of timer_rate

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Add description of timer_rate tunable and clean up some
typos.

Change-Id: I4b96a36aad51eed3bef0ee5f571dc6e0a94c8dd9
Signed-off-by: Allen Martin <amartin@nvidia.com>
This commit is contained in:
Allen Martin
2011-06-30 23:54:07 -07:00
parent ce4bafd82e
commit 5c0f07b1fe
1 changed files with 4 additions and 2 deletions
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6
Documentation/cpu-freq/governors.txt
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@@ -215,10 +215,10 @@ to MAX speed.
If the cpu was not sufficiently busy to immediately ramp 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, 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. 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 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 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 go_maxspeed_load: The CPU load at which to ramp to max speed. Default
is 85. 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 3. The Governor Interface in the CPUfreq Core
============================================= =============================================