€•^      Œsphinx.addnodes”Œdocument”“”)”}”(Œ	rawsource”Œ ”Œchildren”]”(Œtranslations”ŒLanguagesNode”“”)”}”(hhh]”(h Œpending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ7/translations/zh_CN/driver-api/thermal/cpu-idle-cooling”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ7/translations/zh_TW/driver-api/thermal/cpu-idle-cooling”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ7/translations/it_IT/driver-api/thermal/cpu-idle-cooling”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ7/translations/ja_JP/driver-api/thermal/cpu-idle-cooling”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ7/translations/ko_KR/driver-api/thermal/cpu-idle-cooling”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ7/translations/sp_SP/driver-api/thermal/cpu-idle-cooling”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ SPDX-License-Identifier: GPL-2.0”h]”hŒ SPDX-License-Identifier: GPL-2.0”…””}”hh£sbah}”(h]”h ]”h"]”h$]”h&]”Œ	xml:space”Œpreserve”uh1h¡hhhžhhŸŒQ/var/lib/git/docbuild/linux/Documentation/driver-api/thermal/cpu-idle-cooling.rst”h KubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒCPU Idle Cooling”h]”hŒCPU Idle Cooling”…””}”(hh»hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hh¶hžhhŸh³h Kubhµ)”}”(hhh]”(hº)”}”(hŒ
Situation:”h]”hŒ
Situation:”…””}”(hhÌhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hhÉhžhhŸh³h KubhŒ	paragraph”“”)”}”(hXŠ  Under certain circumstances a SoC can reach a critical temperature
limit and is unable to stabilize the temperature around a temperature
control. When the SoC has to stabilize the temperature, the kernel can
act on a cooling device to mitigate the dissipated power. When the
critical temperature is reached, a decision must be taken to reduce
the temperature, that, in turn impacts performance.”h]”hXŠ  Under certain circumstances a SoC can reach a critical temperature
limit and is unable to stabilize the temperature around a temperature
control. When the SoC has to stabilize the temperature, the kernel can
act on a cooling device to mitigate the dissipated power. When the
critical temperature is reached, a decision must be taken to reduce
the temperature, that, in turn impacts performance.”…””}”(hhÜhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K
hhÉhžhubhÛ)”}”(hXj  Another situation is when the silicon temperature continues to
increase even after the dynamic leakage is reduced to its minimum by
clock gating the component. This runaway phenomenon can continue due
to the static leakage. The only solution is to power down the
component, thus dropping the dynamic and static leakage that will
allow the component to cool down.”h]”hXj  Another situation is when the silicon temperature continues to
increase even after the dynamic leakage is reduced to its minimum by
clock gating the component. This runaway phenomenon can continue due
to the static leakage. The only solution is to power down the
component, thus dropping the dynamic and static leakage that will
allow the component to cool down.”…””}”(hhêhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h KhhÉhžhubhÛ)”}”(hXª  Last but not least, the system can ask for a specific power budget but
because of the OPP density, we can only choose an OPP with a power
budget lower than the requested one and under-utilize the CPU, thus
losing performance. In other words, one OPP under-utilizes the CPU
with a power less than the requested power budget and the next OPP
exceeds the power budget. An intermediate OPP could have been used if
it were present.”h]”hXª  Last but not least, the system can ask for a specific power budget but
because of the OPP density, we can only choose an OPP with a power
budget lower than the requested one and under-utilize the CPU, thus
losing performance. In other words, one OPP under-utilizes the CPU
with a power less than the requested power budget and the next OPP
exceeds the power budget. An intermediate OPP could have been used if
it were present.”…””}”(hhøhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h KhhÉhžhubeh}”(h]”Œ	situation”ah ]”h"]”Œ
situation:”ah$]”h&]”uh1h´hh¶hžhhŸh³h Kubhµ)”}”(hhh]”(hº)”}”(hŒ
Solutions:”h]”hŒ
Solutions:”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hj  hžhhŸh³h K!ubhÛ)”}”(hX  If we can remove the static and the dynamic leakage for a specific
duration in a controlled period, the SoC temperature will
decrease. Acting on the idle state duration or the idle cycle
injection period, we can mitigate the temperature by modulating the
power budget.”h]”hX  If we can remove the static and the dynamic leakage for a specific
duration in a controlled period, the SoC temperature will
decrease. Acting on the idle state duration or the idle cycle
injection period, we can mitigate the temperature by modulating the
power budget.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K#hj  hžhubhÛ)”}”(hX3  The Operating Performance Point (OPP) density has a great influence on
the control precision of cpufreq, however different vendors have a
plethora of OPP density, and some have large power gap between OPPs,
that will result in loss of performance during thermal control and
loss of power in other scenarios.”h]”hX3  The Operating Performance Point (OPP) density has a great influence on
the control precision of cpufreq, however different vendors have a
plethora of OPP density, and some have large power gap between OPPs,
that will result in loss of performance during thermal control and
loss of power in other scenarios.”…””}”(hj-  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K)hj  hžhubhÛ)”}”(hX¶  At a specific OPP, we can assume that injecting idle cycle on all CPUs
belong to the same cluster, with a duration greater than the cluster
idle state target residency, we lead to dropping the static and the
dynamic leakage for this period (modulo the energy needed to enter
this state). So the sustainable power with idle cycles has a linear
relation with the OPPâ€™s sustainable power and can be computed with a
coefficient similar to::”h]”hXµ  At a specific OPP, we can assume that injecting idle cycle on all CPUs
belong to the same cluster, with a duration greater than the cluster
idle state target residency, we lead to dropping the static and the
dynamic leakage for this period (modulo the energy needed to enter
this state). So the sustainable power with idle cycles has a linear
relation with the OPPâ€™s sustainable power and can be computed with a
coefficient similar to:”…””}”(hj;  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K/hj  hžhubhŒliteral_block”“”)”}”(hŒ$Power(IdleCycle) = Coef x Power(OPP)”h]”hŒ$Power(IdleCycle) = Coef x Power(OPP)”…””}”hjK  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h K7hj  hžhubeh}”(h]”Œ	solutions”ah ]”h"]”Œ
solutions:”ah$]”h&]”uh1h´hh¶hžhhŸh³h K!ubhµ)”}”(hhh]”(hº)”}”(hŒIdle Injection:”h]”hŒIdle Injection:”…””}”(hjd  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hja  hžhhŸh³h K:ubhÛ)”}”(hX  The base concept of the idle injection is to force the CPU to go to an
idle state for a specified time each control cycle, it provides
another way to control CPU power and heat in addition to
cpufreq. Ideally, if all CPUs belonging to the same cluster, inject
their idle cycles synchronously, the cluster can reach its power down
state with a minimum power consumption and reduce the static leakage
to almost zero.  However, these idle cycles injection will add extra
latencies as the CPUs will have to wakeup from a deep sleep state.”h]”hX  The base concept of the idle injection is to force the CPU to go to an
idle state for a specified time each control cycle, it provides
another way to control CPU power and heat in addition to
cpufreq. Ideally, if all CPUs belonging to the same cluster, inject
their idle cycles synchronously, the cluster can reach its power down
state with a minimum power consumption and reduce the static leakage
to almost zero.  However, these idle cycles injection will add extra
latencies as the CPUs will have to wakeup from a deep sleep state.”…””}”(hjr  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K<hja  hžhubhÛ)”}”(hŒÈWe use a fixed duration of idle injection that gives an acceptable
performance penalty and a fixed latency. Mitigation can be increased
or decreased by modulating the duty cycle of the idle injection.”h]”hŒÈWe use a fixed duration of idle injection that gives an acceptable
performance penalty and a fixed latency. Mitigation can be increased
or decreased by modulating the duty cycle of the idle injection.”…””}”(hj€  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h KEhja  hžhubjJ  )”}”(hŒß^
|
|
|-------                         -------
|_______|_______________________|_______|___________

<------>
  idle  <---------------------->
               running

 <----------------------------->
         duty cycle 25%”h]”hŒß^
|
|
|-------                         -------
|_______|_______________________|_______|___________

<------>
  idle  <---------------------->
               running

 <----------------------------->
         duty cycle 25%”…””}”hjŽ  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h KKhja  hžhubhÛ)”}”(hŒÁThe implementation of the cooling device bases the number of states on
the duty cycle percentage. When no mitigation is happening the cooling
device state is zero, meaning the duty cycle is 0%.”h]”hŒÁThe implementation of the cooling device bases the number of states on
the duty cycle percentage. When no mitigation is happening the cooling
device state is zero, meaning the duty cycle is 0%.”…””}”(hjœ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h KYhja  hžhubhÛ)”}”(hŒÑWhen the mitigation begins, depending on the governor's policy, a
starting state is selected. With a fixed idle duration and the duty
cycle (aka the cooling device state), the running duration can be
computed.”h]”hŒÓWhen the mitigation begins, depending on the governorâ€™s policy, a
starting state is selected. With a fixed idle duration and the duty
cycle (aka the cooling device state), the running duration can be
computed.”…””}”(hjª  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K]hja  hžhubhÛ)”}”(hŒzThe governor will change the cooling device state thus the duty cycle
and this variation will modulate the cooling effect.”h]”hŒzThe governor will change the cooling device state thus the duty cycle
and this variation will modulate the cooling effect.”…””}”(hj¸  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h Kbhja  hžhubjJ  )”}”(hXL  ^
|
|
|-------                 -------
|_______|_______________|_______|___________

<------>
  idle  <-------------->
           running

 <--------------------->
     duty cycle 33%


^
|
|
|-------         -------
|_______|_______|_______|___________

<------>
  idle  <------>
         running

 <------------->
  duty cycle 50%”h]”hXL  ^
|
|
|-------                 -------
|_______|_______________|_______|___________

<------>
  idle  <-------------->
           running

 <--------------------->
     duty cycle 33%


^
|
|
|-------         -------
|_______|_______|_______|___________

<------>
  idle  <------>
         running

 <------------->
  duty cycle 50%”…””}”hjÆ  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h Kghja  hžhubhÛ)”}”(hŒCThe idle injection duration value must comply with the constraints:”h]”hŒCThe idle injection duration value must comply with the constraints:”…””}”(hjÔ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K‚hja  hžhubhŒbullet_list”“”)”}”(hhh]”(hŒ	list_item”“”)”}”(hŒÞIt is less than or equal to the latency we tolerate when the
mitigation begins. It is platform dependent and will depend on the
user experience, reactivity vs performance trade off we want. This
value should be specified.
”h]”hÛ)”}”(hŒÝIt is less than or equal to the latency we tolerate when the
mitigation begins. It is platform dependent and will depend on the
user experience, reactivity vs performance trade off we want. This
value should be specified.”h]”hŒÝIt is less than or equal to the latency we tolerate when the
mitigation begins. It is platform dependent and will depend on the
user experience, reactivity vs performance trade off we want. This
value should be specified.”…””}”(hjí  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K„hjé  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jç  hjä  hžhhŸh³h Nubjè  )”}”(hŒˆIt is greater than the idle stateâ€™s target residency we want to go
for thermal mitigation, otherwise we end up consuming more energy.
”h]”hÛ)”}”(hŒ‡It is greater than the idle stateâ€™s target residency we want to go
for thermal mitigation, otherwise we end up consuming more energy.”h]”hŒ‡It is greater than the idle stateâ€™s target residency we want to go
for thermal mitigation, otherwise we end up consuming more energy.”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K‰hj  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jç  hjä  hžhhŸh³h Nubeh}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ-”uh1jâ  hŸh³h K„hja  hžhubeh}”(h]”Œidle-injection”ah ]”h"]”Œidle injection:”ah$]”h&]”uh1h´hh¶hžhhŸh³h K:ubhµ)”}”(hhh]”(hº)”}”(hŒPower considerations”h]”hŒPower considerations”…””}”(hj,  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¹hj)  hžhhŸh³h KubhÛ)”}”(hŒƒWhen we reach the thermal trip point, we have to sustain a specified
power for a specific temperature but at this time we consume::”h]”hŒ‚When we reach the thermal trip point, we have to sustain a specified
power for a specific temperature but at this time we consume:”…””}”(hj:  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h Khj)  hžhubjJ  )”}”(hŒ9Power = Capacitance x Voltage^2 x Frequency x Utilisation”h]”hŒ9Power = Capacitance x Voltage^2 x Frequency x Utilisation”…””}”hjH  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h K’hj)  hžhubhÛ)”}”(hX«  ... which is more than the sustainable power (or there is something
wrong in the system setup). The â€˜Capacitanceâ€™ and â€˜Utilisationâ€™ are a
fixed value, â€˜Voltageâ€™ and the â€˜Frequencyâ€™ are fixed artificially
because we donâ€™t want to change the OPP. We can group the
â€˜Capacitanceâ€™ and the â€˜Utilisationâ€™ into a single term which is the
â€˜Dynamic Power Coefficient (Cdyn)â€™ Simplifying the above, we have::”h]”hXª  ... which is more than the sustainable power (or there is something
wrong in the system setup). The â€˜Capacitanceâ€™ and â€˜Utilisationâ€™ are a
fixed value, â€˜Voltageâ€™ and the â€˜Frequencyâ€™ are fixed artificially
because we donâ€™t want to change the OPP. We can group the
â€˜Capacitanceâ€™ and the â€˜Utilisationâ€™ into a single term which is the
â€˜Dynamic Power Coefficient (Cdyn)â€™ Simplifying the above, we have:”…””}”(hjV  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K”hj)  hžhubjJ  )”}”(hŒ#Pdyn = Cdyn x Voltage^2 x Frequency”h]”hŒ#Pdyn = Cdyn x Voltage^2 x Frequency”…””}”hjd  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h K›hj)  hžhubhÛ)”}”(hX\  The power allocator governor will ask us somehow to reduce our power
in order to target the sustainable power defined in the device
tree. So with the idle injection mechanism, we want an average power
(Ptarget) resulting in an amount of time running at full power on a
specific OPP and idle another amount of time. That could be put in a
equation::”h]”hX[  The power allocator governor will ask us somehow to reduce our power
in order to target the sustainable power defined in the device
tree. So with the idle injection mechanism, we want an average power
(Ptarget) resulting in an amount of time running at full power on a
specific OPP and idle another amount of time. That could be put in a
equation:”…””}”(hjr  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h Khj)  hžhubjJ  )”}”(hŒ®P(opp)target = ((Trunning x (P(opp)running) + (Tidle x P(opp)idle)) /
                       (Trunning + Tidle)

 ...

Tidle = Trunning x ((P(opp)running / P(opp)target) - 1)”h]”hŒ®P(opp)target = ((Trunning x (P(opp)running) + (Tidle x P(opp)idle)) /
                       (Trunning + Tidle)

 ...

Tidle = Trunning x ((P(opp)running / P(opp)target) - 1)”…””}”hj€  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h K¤hj)  hžhubhÛ)”}”(hŒÃAt this point if we know the running period for the CPU, that gives us
the idle injection we need. Alternatively if we have the idle
injection duration, we can compute the running duration with::”h]”hŒÂAt this point if we know the running period for the CPU, that gives us
the idle injection we need. Alternatively if we have the idle
injection duration, we can compute the running duration with:”…””}”(hjŽ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K«hj)  hžhubjJ  )”}”(hŒ7Trunning = Tidle / ((P(opp)running / P(opp)target) - 1)”h]”hŒ7Trunning = Tidle / ((P(opp)running / P(opp)target) - 1)”…””}”hjœ  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h K¯hj)  hžhubhÛ)”}”(hŒÿPractically, if the running power is less than the targeted power, we
end up with a negative time value, so obviously the equation usage is
bound to a power reduction, hence a higher OPP is needed to have the
running power greater than the targeted power.”h]”hŒÿPractically, if the running power is less than the targeted power, we
end up with a negative time value, so obviously the equation usage is
bound to a power reduction, hence a higher OPP is needed to have the
running power greater than the targeted power.”…””}”(hjª  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K±hj)  hžhubhÛ)”}”(hŒ7However, in this demonstration we ignore three aspects:”h]”hŒ7However, in this demonstration we ignore three aspects:”…””}”(hj¸  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K¶hj)  hžhubhŒblock_quote”“”)”}”(hX  * The static leakage is not defined here, we can introduce it in the
  equation but assuming it will be zero most of the time as it is
  difficult to get the values from the SoC vendors

* The idle state wake up latency (or entry + exit latency) is not
  taken into account, it must be added in the equation in order to
  rigorously compute the idle injection

* The injected idle duration must be greater than the idle state
  target residency, otherwise we end up consuming more energy and
  potentially invert the mitigation effect
”h]”jã  )”}”(hhh]”(jè  )”}”(hŒ´The static leakage is not defined here, we can introduce it in the
equation but assuming it will be zero most of the time as it is
difficult to get the values from the SoC vendors
”h]”hÛ)”}”(hŒ³The static leakage is not defined here, we can introduce it in the
equation but assuming it will be zero most of the time as it is
difficult to get the values from the SoC vendors”h]”hŒ³The static leakage is not defined here, we can introduce it in the
equation but assuming it will be zero most of the time as it is
difficult to get the values from the SoC vendors”…””}”(hjÓ  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K¸hjÏ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jç  hjÌ  ubjè  )”}”(hŒ§The idle state wake up latency (or entry + exit latency) is not
taken into account, it must be added in the equation in order to
rigorously compute the idle injection
”h]”hÛ)”}”(hŒ¦The idle state wake up latency (or entry + exit latency) is not
taken into account, it must be added in the equation in order to
rigorously compute the idle injection”h]”hŒ¦The idle state wake up latency (or entry + exit latency) is not
taken into account, it must be added in the equation in order to
rigorously compute the idle injection”…””}”(hjë  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h K¼hjç  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jç  hjÌ  ubjè  )”}”(hŒ¨The injected idle duration must be greater than the idle state
target residency, otherwise we end up consuming more energy and
potentially invert the mitigation effect
”h]”hÛ)”}”(hŒ§The injected idle duration must be greater than the idle state
target residency, otherwise we end up consuming more energy and
potentially invert the mitigation effect”h]”hŒ§The injected idle duration must be greater than the idle state
target residency, otherwise we end up consuming more energy and
potentially invert the mitigation effect”…””}”(hj  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h KÀhjÿ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jç  hjÌ  ubeh}”(h]”h ]”h"]”h$]”h&]”j  Œ*”uh1jâ  hŸh³h K¸hjÈ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jÆ  hŸh³h K¸hj)  hžhubhÛ)”}”(hŒSo the final equation is::”h]”hŒSo the final equation is:”…””}”(hj$  hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÚhŸh³h KÄhj)  hžhubjJ  )”}”(hŒmTrunning = (Tidle - Twakeup ) x
               (((P(opp)dyn + P(opp)static ) - P(opp)target) / P(opp)target )”h]”hŒmTrunning = (Tidle - Twakeup ) x
               (((P(opp)dyn + P(opp)static ) - P(opp)target) / P(opp)target )”…””}”hj2  sbah}”(h]”h ]”h"]”h$]”h&]”h±h²uh1jI  hŸh³h KÆhj)  hžhubeh}”(h]”Œpower-considerations”ah ]”h"]”Œpower considerations”ah$]”h&]”uh1h´hh¶hžhhŸh³h Kubeh}”(h]”Œcpu-idle-cooling”ah ]”h"]”Œcpu idle cooling”ah$]”h&]”uh1h´hhhžhhŸh³h Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”h³uh1hŒcurrent_source”NŒcurrent_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(h¹NŒ	generator”NŒ	datestamp”NŒsource_link”NŒ
source_url”NŒtoc_backlinks”Œentry”Œfootnote_backlinks”KŒsectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒstrip_classes”NŒreport_level”KŒ
halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ	traceback”ˆŒinput_encoding”Œ	utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”js  Œerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œlanguage_code”Œen”Œrecord_dependencies”NŒconfig”NŒ	id_prefix”hŒauto_id_prefix”Œid”Œdump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”h³Œ_destination”NŒ_config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒraw_enabled”KŒline_length_limit”M'Œpep_references”NŒpep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒrfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ	tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œsmart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œdocinfo_xform”KŒsectsubtitle_xform”‰Œimage_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”Œnameids”}”(jM  jJ  j  j  j^  j[  j&  j#  jE  jB  uŒ	nametypes”}”(jM  ‰j  ‰j^  ‰j&  ‰jE  ‰uh}”(jJ  h¶j  hÉj[  j  j#  ja  jB  j)  uŒfootnote_refs”}”Œcitation_refs”}”Œautofootnotes”]”Œautofootnote_refs”]”Œsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ	footnotes”]”Œ	citations”]”Œautofootnote_start”KŒsymbol_footnote_start”K Œ
id_counter”Œcollections”ŒCounter”“”}”…”R”Œparse_messages”]”Œtransform_messages”]”Œtransformer”NŒinclude_log”]”Œ
decoration”Nhžhub.