thermal-conf.xml

<?xml version="1.0"?>
<ThermalConfiguration>
<Platform>
        <Name>Thinkpad T440p</Name>
        <UUID>*</UUID>
        <ProductName>*</ProductName>
        <Preference>QUIET</Preference><!-- if set to PERFORMANCE, the rapl throttling won't be used -->
        <CoolingDevices>
                <CoolingDevice>
                        <Type>rapl_controller</Type>
                        <MinState>37000000</MinState><!-- Set this to your processor's specified TDP -->
                        <MaxState>9250000</MaxState><!-- The minimum power. Use 25% of TDP -->
                        <IncDecStep>1850000</IncDecStep><!-- I don't know if this is used with PID? Set to 5% of TDP -->
                        <ReadBack>1</ReadBack>
                        <DebouncePeriod>0</DebouncePeriod>
                        <PidControl>
                                <!-- These values may have to be adjusted (reduced) for low TDP processors -->
                                <!-- Tweaking PID controllers is fun!™ -->
                                <kp>-500</kp><!-- Proportional: adjust power by #mW per degree over target -->
                                <ki>-250</ki><!-- Integral: adjust power by #mW per accumulated error of degrees over target -->
                                <kd>0</kd><!-- Differential: adjust power by #mW per degree change since last update (500ms) -->
                        </PidControl>
                </CoolingDevice>
        </CoolingDevices>
        <ThermalZones>
                <ThermalZone>
                        <Type>cpu_manual</Type>
                        <TripPoints>
                                <TripPoint>
                                        <SensorType>x86_pkg_temp</SensorType>
                                        <Temperature>70000</Temperature><!-- Somewhere below your target temperature -->
                                        <!-- The reason for this is to switch to polling mode so PID operates -->
                                        <Hyst>0</Hyst>
                                        <type>passive</type>
                                        <ControlType>PARALLEL</ControlType>
                                </TripPoint>
                                <TripPoint>
                                        <SensorType>x86_pkg_temp</SensorType>
                                        <Temperature>79000</Temperature><!-- Set this to your target temperature -->
                                        <Hyst>0</Hyst>
                                        <type>passive</type>
                                        <ControlType>PARALLEL</ControlType>
                                        <CoolingDevice>
                                                <index>1</index>
                                                <type>rapl_controller</type>
                                                <influence>100</influence>
                                                <SamplingPeriod>0</SamplingPeriod>
                                        </CoolingDevice>
                                </TripPoint>
                        </TripPoints>
                </ThermalZone>
        </ThermalZones>
</Platform>

</ThermalConfiguration>