CN104750228B - A kind of method and device reducing multi-core processor power consumption - Google Patents
A kind of method and device reducing multi-core processor power consumption Download PDFInfo
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Abstract
The present embodiments relate to technical field of electronic equipment more particularly to a kind of method and devices reducing multi-core processor power consumption.This method includes：The corresponding free time length of chondromitiome of multi-core processor is calculated, during idle time when the long duration threshold value more than setting, the power supply state of chondromitiome is adjusted according to setting power consumption adjustable strategies, to reduce the power consumption of chondromitiome.Technical solution provided in an embodiment of the present invention, it is adjusted by the power supply state of the chondromitiome to being in idle condition for a long time, to optimize the power supply mode of existing multi-core processor, the inessential power consumption for reducing electronic equipment is achieved the purpose that, and then increase the stand-by time of electronic equipment, promote the usage experience of user.
Description
Technical field
The present embodiments relate to technical field of electronic equipment more particularly to a kind of methods reducing multi-core processor power consumption
And device.
Background technology
Currently, the application of multi-core processor is more and more extensive, all improved using multi-core processor in many electronic equipments
Processing speed, however can increase system power dissipation using multi-core processor, this problem especially shows that present people are widely used
Handheld device on.With the development of science and technology, the display screen of handheld device is increasing, the check figure of processor is more and more, main
Frequently higher and higher, power consumption also exponentially rises, and therefore, the power problems of multi-core processor have become influence user and use most
One of key factor.
In general, multi-core processor includes mainly a main core and one or more chondromitiome.Wherein, main core is place
In continue working state, and chondromitiome then can optionally be in work or idle state.In the prior art, multi-core processor
In chondromitiome even at idle state, voltage value is also identical as voltage value holding when normal work, i.e., chondromitiome exists
It is in idling conditions when not handling data.The non-essential power consumption of electronic equipment is virtually increased in this way, to
Decrease the stand-by time of electronic equipment.
Invention content
The purpose of the present invention is to propose to a kind of method and devices reducing multi-core processor power consumption, to optimize existing multinuclear
The power supply mode of processor reduces the inessential power consumption of electronic equipment.
On the one hand, an embodiment of the present invention provides a kind of methods reducing multi-core processor power consumption, including：
Calculate the corresponding free time length of chondromitiome of multi-core processor；
When the free time length is more than setting duration threshold value, the power supply according to setting power consumption adjustable strategies to the chondromitiome
State is adjusted, to reduce the power consumption of the chondromitiome.
On the other hand, an embodiment of the present invention provides a kind of devices reducing multi-core processor power consumption, including：
Duration calculation module, the corresponding free time length of chondromitiome for calculating multi-core processor；
Module is adjusted, is used for when the free time length is more than setting duration threshold value, according to setting power consumption adjustable strategies pair
The power supply state of the chondromitiome is adjusted, to reduce the power consumption of the chondromitiome.
The method of the reduction multi-core processor power consumption provided in the embodiment of the present invention, the chondromitiome for calculating multi-core processor correspond to
Free time length, it is long when being more than setting duration threshold value during idle time, according to setting power consumption adjustable strategies to the power supply state of chondromitiome
It is adjusted, to reduce the power consumption of chondromitiome.It is adjusted, is come by the power supply state of the chondromitiome to being in idle condition for a long time
The power supply mode for optimizing existing multi-core processor has achieved the purpose that the inessential power consumption for reducing electronic equipment, and then has increased
The stand-by time of electronic equipment promotes the usage experience of user.
Description of the drawings
Fig. 1 is a kind of flow diagram of the method for reduction multi-core processor power consumption that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of method reducing multi-core processor power consumption provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow diagram of the method for reduction multi-core processor power consumption that the embodiment of the present invention three provides；
Fig. 4 is a kind of flow diagram of the method for reduction multi-core processor power consumption that the embodiment of the present invention four provides；
Fig. 5 is a kind of structure diagram of the device for reduction multi-core processor power consumption that the embodiment of the present invention five provides.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.It is appreciated that
It is that specific embodiment described herein is used only for explaining the present invention rather than limitation of the invention.It further needs exist for illustrating
, only the parts related to the present invention are shown for ease of description, in attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of flow diagram of the method for reduction multi-core processor power consumption that the embodiment of the present invention one provides, should
Method can be executed by the device of reduction multi-core processor power consumption, and wherein the device can be and general by software and or hardware realization
It can be integrated in the electronic equipments such as computer or smart mobile phone.As shown in Figure 1, this method includes：
Step 101, the corresponding free time length of chondromitiome for calculating multi-core processor.
Under normal circumstances, the main core of multi-core processor will not power off, illustratively, in the present embodiment, by multinuclear
The corresponding free time length of chondromitiome for managing the main core of device to calculate multi-core processor.The particular number of chondromitiome is unrestricted, generally may be used
It is 1,3 or 7 etc..
The free time length specifically can refer to the time span that chondromitiome is in idle working condition, i.e. chondromitiome is not in event
The time span of state in processing.
Step 102 judges whether free time length is more than setting duration threshold value, if so, thening follow the steps 103, otherwise, returns
Step 101.
Under normal circumstances, the chondromitiome in multi-core processor is even at idle state, voltage value also with normal work
Voltage value when making keeps identical, i.e., chondromitiome is in idling conditions when no processing data, is virtually increased by this way
The non-essential power consumption of electronic equipment.In order to reduce this inessential work(generated due to chondromitiome is in idle condition for a long time
Consumption, set in the present embodiment duration threshold value (such as 5 milliseconds, specifically can be according to model, the core number etc. of different multi-core processors
Parameter is set), when the corresponding free time length of chondromitiome reaches the duration threshold value, need to adjust the power supply state of chondromitiome
It is whole, that is, execute step 103.
In the present embodiment, one or more duration threshold value (for example, 2,3 or 4 etc.), and root can be set
According to the different duration threshold values met from the free time length, using different power consumption adjustable strategies to the power supply state of chondromitiome
It is adjusted.
Step 103 is adjusted the power supply state of chondromitiome according to setting power consumption adjustable strategies, to reduce the work(of chondromitiome
Consumption.
Illustratively, the setting power consumption adjustable strategies can be：Free time length is more than the corresponding pair of setting duration threshold value
The supply voltage of core is reduced to the setting value for meeting the chondromitiome supply voltage value range by normal operating value, such as the confession of the chondromitiome
Piezoelectric voltage value range is 3~6V, and normal operating value 6V, the setting value can be that 4V or 3.5V is equivalent；Or stop to sky
Idle length is more than the corresponding chondromitiome of setting duration threshold value and is powered, and can also be further turned off the clock of the chondromitiome.
By the above-mentioned several adjustable strategies or other adjustable strategies enumerated, the power consumption of chondromitiome can be reduced, to reduce
The inessential power consumption of electronic equipment.
The method for the reduction multi-core processor power consumption that the embodiment of the present invention one provides, the chondromitiome for calculating multi-core processor correspond to
Free time length, it is long when being more than setting duration threshold value during idle time, according to setting power consumption adjustable strategies to the power supply state of chondromitiome
It is adjusted, to reduce the power consumption of chondromitiome.It is adjusted, is come by the power supply state of the chondromitiome to being in idle condition for a long time
The power supply mode for optimizing existing multi-core processor has achieved the purpose that the inessential power consumption for reducing electronic equipment, and then has increased
The stand-by time of electronic equipment promotes the usage experience of user.
Embodiment two
Fig. 2 is a kind of flow diagram of method reducing multi-core processor power consumption provided by Embodiment 2 of the present invention, this
Embodiment is optimized based on above-described embodiment, in the present embodiment, when will grow during idle time more than setting duration threshold value,
The power supply state of the chondromitiome is adjusted according to setting power consumption adjustable strategies and is optimized for：It is more than first in the free time length
When duration threshold value, the power supply state of the chondromitiome is adjusted according to the first setting power consumption adjustable strategies；When described idle
When length is more than the second duration threshold value, the power supply state of the chondromitiome is adjusted according to the second setting power consumption adjustable strategies.
Correspondingly, the method for the present embodiment includes the following steps：
Step 201, the corresponding free time length of chondromitiome for calculating multi-core processor.
Step 202 judges whether free time length is more than the first duration threshold value, if so, thening follow the steps 203, otherwise, returns
Step 201.
Step 203 is adjusted the power supply state of chondromitiome according to the first setting power consumption adjustable strategies.
Illustratively, the first setting power consumption adjustable strategies can be：Free time length is corresponded to more than the first duration threshold value
The supply voltage of chondromitiome the setting value for meeting the chondromitiome supply voltage value range is reduced to by normal operating value, such as the chondromitiome
Supply voltage value range be 3~6V, normal operating value 6V, the setting value can be that 4V is equivalent；
Step 204 judges whether free time length is more than the second duration threshold value, if so, thening follow the steps 205, otherwise, returns
Step 201.
Wherein, the second duration threshold value is more than the first duration threshold value, can be according to the type of different multi-core processors
Number, the parameters such as core number are set.Illustratively, the first duration threshold value is 1 millisecond, and the second duration threshold value is 10 milliseconds.
Step 205 is adjusted the power supply state of chondromitiome according to the second setting power consumption adjustable strategies.
Illustratively, the second setting power consumption adjustable strategies can be：Free time length is more than setting duration threshold value to correspond to
The supply voltage of chondromitiome the setting value for meeting the chondromitiome supply voltage value range is reduced to by normal operating value, such as the chondromitiome
Supply voltage value range be 3~6V, normal operating value 6V, the setting value can be that 3.5V is equivalent, which answers small
Setting value in step 203 in first setting power consumption adjustable strategies；Or stop being more than setting duration threshold value to free time length
Corresponding chondromitiome is powered, and can also be further turned off the clock of the chondromitiome.
The method provided by Embodiment 2 of the present invention for reducing multi-core processor power consumption, by the setting duration threshold in embodiment one
Value is further subdivided into the first duration threshold value and the second duration threshold value, and corresponds to the first setting power consumption adjustable strategies and second respectively
Power consumption adjustable strategies are set, realize the step type adjustment to the supply voltage of the chondromitiome in idle state, further
The power supply mode for optimizing existing multi-core processor reduces the inessential power consumption of electronic equipment, increases the standby of electronic equipment
Time promotes the usage experience of user.
Embodiment three
Fig. 3 is a kind of flow diagram of the method for reduction multi-core processor power consumption that the embodiment of the present invention three provides, this
Embodiment is optimized based on above-described embodiment, in the present embodiment, will be according to the first setting power consumption adjustable strategies to pair
The power supply state of core, which is adjusted, to be optimized for：The supply voltage of the corresponding chondromitiome of the free time length is reduced by normal operating value
To the setting value for meeting the chondromitiome supply voltage value range；It will be according to the second setting power consumption adjustable strategies to the free time length
The operating status of corresponding chondromitiome, which is adjusted, to be optimized for：Stopping is powered the corresponding chondromitiome of the free time length, and closes
Close the clock of the chondromitiome.
Correspondingly, the method for the present embodiment includes the following steps：
Step 301, the corresponding free time length of chondromitiome for calculating multi-core processor.
Step 302 judges whether free time length is more than the first duration threshold value, if so, thening follow the steps 303；Otherwise, it returns
Step 301.
The supply voltage of the corresponding chondromitiome of free time length is reduced to by normal operating value and meets chondromitiome confession by step 303
The setting value of piezoelectric voltage value range.
Preferably, the setting value is the minimum value in the chondromitiome supply voltage value range.Such as the power supply of the chondromitiome
Voltage value range is 3~6V, normal operating value 6V, then setting value is preferably 3V.
Step 304 judges whether free time length is more than the second duration threshold value, if so, thening follow the steps 305；Otherwise, it returns
Step 301.
Wherein, the second duration threshold value is more than the first duration threshold value, can be according to the type of different multi-core processors
Number, the parameters such as core number are set.Preferably, the first duration threshold value is 1 millisecond, and the second duration threshold value is 10 milliseconds.
Step 305, stopping are powered the corresponding chondromitiome of free time length, and close the clock of the chondromitiome.
When chondromitiome is in idle condition for a long time, stopping is taken to be powered chondromitiome, and close the clock of the chondromitiome
Strategy can reduce the inessential power consumption of electronic equipment to the full extent.
The two-stage Adjusted Option of setting the first duration threshold value and the second duration threshold value is described in detail in the present embodiment, is having
It is not limited only to two-stage Adjusted Option in body implementation process, various actual conditions can be considered using adjustment sides such as level-one or three-levels
Case.For example, when using three-level Adjusted Option, preceding two-stage can be set to the stepped supply voltage for reducing chondromitiome, such as the chondromitiome
Supply voltage value range be 3~6V, normal operating value 6V, the first order can be reduced to 4V, and the second level can be reduced to 3V, finally exist
Stop being powered chondromitiome again in the third level, simultaneously closes off chondromitiome clock.
The embodiment of the present invention three on the basis of the above embodiments, has advanced optimized the power supply of existing multi-core processor
Mode can reduce the inessential power consumption of electronic equipment, increase the stand-by time of electronic equipment, promote making for user to the full extent
With experience.
Example IV
Fig. 4 is a kind of flow diagram of the method for reduction multi-core processor power consumption that the embodiment of the present invention four provides, this
Embodiment is optimized based on above-described embodiment, in the present embodiment, is being stopped to the corresponding chondromitiome of the free time length
It is powered, and closes after the clock of the chondromitiome, increase step：It is corresponding in the chondromitiome detected with the stopping is powered
Pending event when, the supply voltage of the chondromitiome is adjusted to the normal operating value, and open the clock of the chondromitiome.
Correspondingly, the method for the present embodiment includes the following steps：
Step 401, the corresponding free time length of chondromitiome for calculating multi-core processor.
Step 402 judges whether free time length is more than the first duration threshold value, if so, thening follow the steps 403；Otherwise, it returns
Step 401.
The supply voltage of the corresponding chondromitiome of free time length is reduced to by normal operating value and meets chondromitiome confession by step 403
The setting value of piezoelectric voltage value range.
Step 404 judges whether free time length is more than the second duration threshold value, if so, thening follow the steps 405；Otherwise, it returns
Step 401.
Wherein, the second duration threshold value is more than the first duration threshold value.Preferably, the first duration threshold value is 1 millisecond,
Second duration threshold value is 10 milliseconds.
Step 405, stopping are powered the corresponding chondromitiome of free time length, and close the clock of the chondromitiome.
Step 406, in the corresponding pending event of the chondromitiome that detects with the stopping is powered, by the supply voltage of chondromitiome
It adjusts to normal operating value, and opens the clock of the chondromitiome.
Illustratively, it can in real time be detected whether by the main core of multi-core processor corresponding with the chondromitiome that the stopping is powered
Pending event if so, then main core can control correlation module to power for the chondromitiome, and supply voltage is adjusted to work normally
Value, and the clock of the chondromitiome is opened, make the chondromitiome rearming, normally handles corresponding pending event.
The method of the reduction multi-core processor power consumption provided in the embodiment of the present invention four, in the pair for detecting with stopping power supply
When the corresponding pending event of core, the supply voltage of chondromitiome is adjusted to normal operating value, and open the clock of the chondromitiome, subtracted
While few multi-core processor overall power, the normal work of multi-core processor ensure that, also ensure that multi-core processor is handled
The efficiency of event.
Embodiment five
Fig. 5 is a kind of structure diagram of the device for reduction multi-core processor power consumption that the embodiment of the present invention five provides, such as Fig. 5
Shown, which includes：
Duration calculation module 501, the corresponding free time length of chondromitiome for calculating multi-core processor；
Module 502 is adjusted, is used for when the free time length is more than setting duration threshold value, according to setting power consumption adjustable strategies
The power supply state of the chondromitiome is adjusted, to reduce the power consumption of the chondromitiome.
The device for the reduction multi-core processor power consumption that the embodiment of the present invention five provides, is calculated more by duration calculation module 501
The corresponding free time length of chondromitiome of core processor, it is long when being more than setting duration threshold value during idle time, by adjustment module 502 according to setting
Determine power consumption adjustable strategies to be adjusted the power supply state of the chondromitiome, to reduce the power consumption of the chondromitiome, by for a long time
The power supply state for the chondromitiome being in idle condition is adjusted, and to optimize the power supply mode of existing multi-core processor, is reached
The purpose of the inessential power consumption of electronic equipment is reduced, and then increases the stand-by time of electronic equipment, promotes the usage experience of user.
Further, the adjustment module 501 includes the first adjustment unit and second adjustment unit.Wherein, the first adjustment
Unit, for when the free time length is more than the first duration threshold value, power consumption adjustable strategies to be set to the chondromitiome according to first
Power supply state be adjusted；Second adjustment unit is used for when the free time length is more than the second duration threshold value, according to second
Setting power consumption adjustable strategies are adjusted the power supply state of the chondromitiome；Wherein, the second duration threshold value is more than described the
One duration threshold value.
Further, the first adjustment unit is further specifically used for：By the confession of the corresponding chondromitiome of the free time length
Piezoelectric voltage is reduced to the setting value for meeting the chondromitiome supply voltage value range by normal operating value；
The second adjustment unit is further specifically used for：Stopping is powered the corresponding chondromitiome of the free time length,
And close the clock of the chondromitiome.Preferably, the minimum value in the chondromitiome supply voltage value range.
Further, further include that chondromitiome clock opening module is used for：
Stopping being powered the corresponding chondromitiome of the free time length, and closing after the clock of the chondromitiome, is detecting
When to pending event corresponding with the chondromitiome that the stopping is powered, the supply voltage of the chondromitiome is adjusted to described normal
Working value, and open the clock of the chondromitiome.
The device for the reduction multi-core processor power consumption that the embodiment of the present invention is provided can be used for executing the arbitrary implementation of the present invention
The method for the reduction multi-core processor power consumption that example provides, has corresponding function module, realizes identical advantageous effect.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (3)
1. a kind of method reducing multi-core processor power consumption, which is characterized in that including：
Calculate the corresponding free time length of chondromitiome of multi-core processor；
Wherein, the free time length refers to the time span that chondromitiome is in idle working condition, i.e. chondromitiome is not in event handling
In state time span, the free time length calculates by the main core of multi-core processor；
When the free time length is more than the first duration threshold value, the power supply according to the first setting power consumption adjustable strategies to the chondromitiome
State is adjusted；
Wherein, described first set power consumption adjustable strategies as：By the supply voltage of the corresponding chondromitiome of free time length by working normally
Value is reduced to the first setting value for meeting the chondromitiome supply voltage value range；
When the free time length is more than the second duration threshold value, the power supply according to the second setting power consumption adjustable strategies to the chondromitiome
State is adjusted, and the first power consumption adjustable strategies and the second power consumption adjustable strategies are set as stepped reduction chondromitiome
Supply voltage；
Wherein, the second duration threshold value is more than the first duration threshold value, can according to the model of different multi-core processors and
Core number is set；
It is described be set as the second of the stepped supply voltage for reducing chondromitiome set power consumption adjustable strategies as：Free time length is corresponded to
The supply voltage of chondromitiome the second setting value for meeting the chondromitiome supply voltage value range is reduced to by normal operating value, it is described
Second setting value is less than first setting value；
When the free time length is more than third duration threshold value, stopping is powered chondromitiome, simultaneously closes off the clock of the chondromitiome,
To reduce the power consumption of the chondromitiome；
Wherein, the third duration threshold value is more than the second duration threshold value, can according to the model of different multi-core processors and
Core number is set；
In the corresponding pending event of the chondromitiome that detects with the stopping is powered, the supply voltage of the chondromitiome is adjusted
To the normal operating value, and open the clock of the chondromitiome.
2. according to the method described in claim 1, it is characterized in that, the first duration threshold value be 1 millisecond, second duration
Threshold value is 10 milliseconds.
3. a kind of device reducing multi-core processor power consumption, which is characterized in that including：
Duration calculation module, the corresponding free time length of chondromitiome for calculating multi-core processor；
Wherein, the free time length refers to the time span that chondromitiome is in idle working condition, i.e. chondromitiome is not in event handling
In state time span, the free time length calculates by the main core of multi-core processor；
The first adjustment unit, for when the free time length is more than the first duration threshold value, plan to be adjusted according to the first setting power consumption
Slightly the power supply state of the chondromitiome is adjusted；
Wherein, described first set power consumption adjustable strategies as：By the supply voltage of the corresponding chondromitiome of free time length by working normally
Value is reduced to the first setting value for meeting the chondromitiome supply voltage value range；
Second adjustment unit, for when the free time length is more than the second duration threshold value, plan to be adjusted according to the second setting power consumption
Slightly the power supply state of the chondromitiome is adjusted, the first power consumption adjustable strategies and the second power consumption adjustable strategies setting
For the stepped supply voltage for reducing chondromitiome；
Wherein, the second duration threshold value is more than the first duration threshold value, can according to the model of different multi-core processors and
Core number is set；
It is described be set as the second of the stepped supply voltage for reducing chondromitiome set power consumption adjustable strategies as：Free time length is corresponded to
The supply voltage of chondromitiome the second setting value for meeting the chondromitiome supply voltage value range is reduced to by normal operating value, it is described
Second setting value is less than first setting value；
Third adjustment unit, for when the free time length is more than third duration threshold value, stopping to be powered chondromitiome, simultaneously
The clock for closing the chondromitiome, to reduce the power consumption of the chondromitiome；
Wherein, the third duration threshold value is more than the second duration threshold value, can according to the model of different multi-core processors and
Core number is set；
Chondromitiome clock opening module will in the corresponding pending event of the chondromitiome that detects with the stopping is powered
The supply voltage of the chondromitiome is adjusted to the normal operating value, and opens the clock of the chondromitiome.
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| CN107885585A (en) * | 2016-09-30 | 2018-04-06 | 罗伯特·博世有限公司 | A kind of dynamic task scheduling device in multinuclear electronic control unit |
| CN106802598A (en) * | 2016-12-30 | 2017-06-06 | 广东欧珀移动通信有限公司 | A kind of method of supplying power to and multi-core access point based on multi-core access point architecture |
| CN112147931B (en) * | 2020-09-22 | 2022-06-24 | 哲库科技(北京)有限公司 | Control method, device and equipment of signal processor and storage medium |
| CN113238648B (en) * | 2021-05-11 | 2023-05-09 | 成都海光集成电路设计有限公司 | Power consumption adjusting method and device |
| CN114356064B (en) * | 2022-01-11 | 2024-03-19 | 北京国网富达科技发展有限责任公司 | Power supply management method and system |
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| CN103513749A (en) * | 2012-06-15 | 2014-01-15 | 三星电子株式会社 | Multi-cluster processing system and method of operating the same |
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| US8316250B2 (en) * | 2006-06-28 | 2012-11-20 | Intel Corporation | Method, system, and apparatus for dynamically distributing a computational load between clusters of cores at a frequency greater than a thermal time constant |
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