diff options
| -rw-r--r-- | Documentation/admin-guide/thermal/intel_powerclamp.rst | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/Documentation/admin-guide/thermal/intel_powerclamp.rst b/Documentation/admin-guide/thermal/intel_powerclamp.rst index f919fbe1cdd9..3ce96043af17 100644 --- a/Documentation/admin-guide/thermal/intel_powerclamp.rst +++ b/Documentation/admin-guide/thermal/intel_powerclamp.rst @@ -155,13 +155,15 @@ b) determine the amount of compensation needed at each target ratio Compensation to each target ratio consists of two parts: a) steady state error compensation - This is to offset the error occurring when the system can - enter idle without extra wakeups (such as external interrupts). + + This is to offset the error occurring when the system can + enter idle without extra wakeups (such as external interrupts). b) dynamic error compensation - When an excessive amount of wakeups occurs during idle, an - additional idle ratio can be added to quiet interrupts, by - slowing down CPU activities. + + When an excessive amount of wakeups occurs during idle, an + additional idle ratio can be added to quiet interrupts, by + slowing down CPU activities. A debugfs file is provided for the user to examine compensation progress and results, such as on a Westmere system:: @@ -283,6 +285,7 @@ cur_state returns value -1 instead of 0 which is to avoid confusing 100% busy state with the disabled state. Example usage: + - To inject 25% idle time:: $ sudo sh -c "echo 25 > /sys/class/thermal/cooling_device80/cur_state |