CN106095544A - Central processing unit control method and device - Google Patents

Central processing unit control method and device Download PDF

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Publication number
CN106095544A
CN106095544A CN201610379313.1A CN201610379313A CN106095544A CN 106095544 A CN106095544 A CN 106095544A CN 201610379313 A CN201610379313 A CN 201610379313A CN 106095544 A CN106095544 A CN 106095544A
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Prior art keywords
cpu
control
core cpu
core
module
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CN201610379313.1A
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CN106095544B (en
Inventor
邱峰
张建春
黄其武
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46Multiprogramming arrangements
    • G06F9/48Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806Task transfer initiation or dispatching
    • G06F9/4843Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
    • G06F9/4881Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
    • G06F9/4893Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues taking into account power or heat criteria
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46Multiprogramming arrangements
    • G06F9/50Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5027Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)

Abstract

Present disclose provides central processing unit control method and device, wherein, the central processor CPU of terminal includes that multiple core cpu, described method include: monitor the loading condition of described CPU;According to described loading condition, controlling the first core cpu in described CPU and be in opening or closed mode, described first core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.The disclosure can reduce opens the power consumption that big core produces, and can reduce the probability of terminal heating.

Description

Central processing unit control method and device
Technical field
It relates to the communications field, particularly relate to central processing unit control method and device.
Background technology
At present, increasing terminal use big small nut central processing unit (Central Processing Unit, CPU) framework.Met the high performance demands of this terminal by big core, small core reach the purpose of power saving.But, much adopt The problem that heating and power consumption are fast easily occurs by the terminal of the CPU architecture of big small nut.
In correlation technique, CPU power consumption can be reduced by the operation frequency of regulation CPU, but, terminal capabilities can be caused Decline so that some operation requests cannot complete, say, that, it is impossible to the real purpose realizing reducing power consumption.
Summary of the invention
In view of this, present disclose provides central processing unit control method and device, to solve the deficiency in correlation technique.
First aspect according to disclosure embodiment, it is provided that a kind of central processing unit control method, described method is for eventually End, the central processor CPU of described terminal includes that multiple core cpu, described method include:
Monitor the loading condition of described CPU;
According to described loading condition, control the first core cpu in described CPU and be in opening or closed mode, institute Stating the first core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.
Alternatively, described according to described loading condition, control the first core cpu in described CPU be in opening or Closed mode, including:
According to the current load value of the described CPU indicated by described loading condition, calculate described current load value and account for described The ratio value of the maximum load value of CPU;
According to described ratio value, control described first core cpu and be in described opening or described closed mode.
Alternatively, described according to described ratio value, control described first core cpu and be in described opening or described pass Closed state, including:
When described ratio value is less than first threshold, detecting whether to receive object run request, described object run please Ask as needing the operation frequency of described CPU to be not less than goal-selling frequency values, and the first duration is less than preset duration Operation requests;
When receiving described object run request, control described first core cpu and be in described opening;
When described terminal has asked corresponding object run by described first core cpu according to described object run Time, control described first core cpu and be in described closed mode;
When not receiving described object run request, control described first core cpu and be in described closed mode.
Alternatively, described according to described ratio value, control described first core cpu and be in described opening or described pass Closed state, also includes:
When described ratio value is higher than Second Threshold, detecting whether to exist subject thread, described subject thread is for taking State the thread of the target multiple of the default monitoring cycle duration that the second duration is the described monitoring cycle of CPU;
When detecting the presence of described subject thread, control described first core cpu and be in described opening;
When the 3rd duration that described first core cpu is in described opening reaches target duration, control institute State the first core cpu and be in described closed mode;
When detect there is not described subject thread time, control described first core cpu and be in described closed mode.
Alternatively, described according to described ratio value, control described first core cpu and be in described opening or described pass Closed state, also includes:
When described ratio value is not less than described first threshold and the most described Second Threshold, detect whether to receive institute State object run request;
When receiving described object run request, control described first core cpu and be in described opening;
When described terminal has asked corresponding object run by described first core cpu according to described object run Time, control described first core cpu and be in described closed mode;
When described ratio value is not less than described first threshold and the most described Second Threshold, detect whether that existence is described Subject thread;
When detecting the presence of described subject thread, control described first core cpu and be in described opening;
Described target duration is reached when described first core cpu is in described 3rd duration of described opening Time, control described first core cpu and be in described closed mode;
When detecting that not receiving described object run asks and there is not described subject thread, control described first Core cpu is in described closed mode.
Second aspect according to disclosure embodiment, it is provided that a kind of central processing unit controls device, described device is for eventually End, the central processor CPU of described terminal includes that multiple core cpu, described device include:
Load monitoring module, is configured to monitor the loading condition of described CPU;
Control module, is configured to the described loading condition according to described load monitoring module monitors, controls in described CPU The first core cpu be in opening or closed mode, described first core cpu is that operation frequency is higher than in described CPU The core cpu of other core cpus.
Alternatively, described control module includes:
Calculating sub module, is configured to described in indicated by the described loading condition according to described load monitoring module monitors The current load value of CPU, calculates the ratio value that described current load value accounts for the maximum load value of described CPU;
Control submodule, be configured to the described ratio value calculated according to described calculating sub module, control a described CPU Core is in described opening or described closed mode.
Alternatively, described control submodule includes:
First operation requests detection sub-module, is configured as described ratio value that described calculating sub module calculates less than the During one threshold value, detecting whether to receive object run request, described object run request is to need the operation frequency of described CPU not Less than goal-selling frequency values, and the first duration is less than the operation requests of preset duration;
First opens control submodule, is configured as described first operation requests detection sub-module detection and receives described During object run request, control described first core cpu and be in described opening;
First closing control submodule, is configured as described terminal and opens at control submodule control by described first In described opening described first core cpu according to described first operation requests detection sub-module detection receive described in When corresponding object run has been asked in object run, control described first core cpu and be in described closed mode;
Second closing control submodule, is configured as described first operation requests detection sub-module detection and does not receives institute When stating object run request, control described first core cpu and be in described closed mode.
Alternatively, described control submodule also includes:
First thread detection sub-module, is configured as the described ratio value of described calculating sub module calculating higher than the second threshold During value, detecting whether to exist subject thread, described subject thread is that to take second duration of described CPU be described monitoring week The thread of the target multiple of the default monitoring cycle duration of phase;
Second opens control submodule, is configured as described first thread detection sub-module and detects the presence of described target During thread, control described first core cpu and be in described opening;
3rd closing control submodule, is configured as described second and opens control submodule described first CPU core of control The heart is in the 3rd duration of described opening when reaching target duration, controls described first core cpu and is in described pass Closed state;
4th closing control submodule, is configured as described first thread detection sub-module and detects and there is not described mesh During graticule journey, control described first core cpu and be in described closed mode.
Alternatively, described control submodule also includes:
Second operation requests detection sub-module, the described ratio value being configured as the calculating of described calculating sub module is not less than When described first threshold and the most described Second Threshold, detect whether to receive described object run request;
3rd opens control submodule, is configured as described second operation requests detection sub-module detection and receives described During object run request, control described first core cpu and be in described opening;
5th closing control submodule, is configured as described terminal and opens at control submodule control by the described 3rd In described opening described first core cpu according to described second operation requests detection sub-module detection receive described in When corresponding object run has been asked in object run, control described first core cpu and be in described closed mode;
Second thread detection sub-module, the described ratio value being configured as the calculating of described calculating sub module is not less than described When first threshold and the most described Second Threshold, detect whether to there is described subject thread;
4th opens control submodule, is configured as described second thread detection sub-module and detects the presence of described target During thread, control described first core cpu and be in described opening;
6th closing control submodule, is configured as the described 4th and opens control submodule described first CPU core of control The heart is in described 3rd duration of described opening when reaching described target duration, controls at described first core cpu In described closed mode;
7th closing control submodule, is configured as described second operation requests detection sub-module and detects and do not receive Described object run request and described second thread detection sub-module detect when there is not described subject thread, control described the One core cpu is in described closed mode.
The third aspect according to disclosure embodiment, it is provided that a kind of central processing unit controls device, described device is for eventually End, the central processor CPU of described terminal includes that multiple core cpu, described device include:
Processor;
For storing the memorizer of processor executable;
Wherein, described processor is configured to:
Monitor the loading condition of described CPU;
According to described loading condition, control the first core cpu in described CPU and be in opening or closed mode, institute Stating the first core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect:
In disclosure embodiment, the CPU of terminal includes multiple core cpu, and described terminal can be according to described in monitoring The loading condition of CPU, controls the first core cpu in described CPU and is in opening or closed mode, described first CPU core The heart is the core cpu that operation frequency is higher than other core cpus in described CPU, the biggest core.Thus reduce the big core of unlatching The power consumption produced, and reduce the probability of terminal heating.
In disclosure embodiment, terminal can detect the loading condition of CPU according to the monitoring cycle, it is to avoid frequently monitoring is negative The power consumption that load situation causes increases, and reduces the probability of terminal heating.
In disclosure embodiment, terminal can calculate the present load of CPU according to the loading condition of the CPU monitored Value accounts for the ratio value of the maximum load value of described CPU, and then controls at the first the biggest core of core cpu according to described ratio value In opening or closed mode.Reduce and open the power consumption that big core produces, and reduce the probability of terminal heating.
In disclosure embodiment, terminal can control described first core cpu be in closedown according to the loading condition of CPU State, thus reduce the power consumption of big core, and reduce the probability of terminal heating.Further, when present load is relatively low, Described first core cpu is allowed to be in opening at short notice in response to object run request.The biggest in present load Time, it is allowed to carry out cpu performance compensation, i.e. interim unlatching described first CPU core when same thread is persistently taken described CPU The heart.When present load is bigger, in order to ensure terminal capabilities, it is allowed to described first core cpu please in response to described object run Ask and be in described opening at short notice.Meanwhile, in order to allow described ratio value quickly fall back to relatively low interval range, Allow to carry out when same thread persistently takies described CPU cpu performance compensation, i.e. described first core cpu of interim unlatching.Logical Cross said process, while guaranteeing terminal capabilities, be scheduling processing for different core cpus, reduce on different core cpu The cost that process migration brings.
It should be appreciated that it is only exemplary and explanatory, not that above general description and details hereinafter describe The disclosure can be limited.
Accompanying drawing explanation
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet the enforcement of the disclosure Example, and for explaining the principle of the disclosure together with description.
Fig. 1 is that the disclosure is according to a kind of central processing unit control method flow chart shown in an exemplary embodiment;
Fig. 2 is that the disclosure is according to the another kind of central processing unit control method flow chart shown in an exemplary embodiment;
Fig. 3 is that the disclosure controls device block diagram according to a kind of central processing unit shown in an exemplary embodiment;
Fig. 4 is that the disclosure controls device block diagram according to the another kind of central processing unit shown in an exemplary embodiment;
Fig. 5 is that the disclosure controls device block diagram according to the another kind of central processing unit shown in an exemplary embodiment;
Fig. 6 is that the disclosure controls device block diagram according to the another kind of central processing unit shown in an exemplary embodiment;
Fig. 7 is that the disclosure controls device block diagram according to the another kind of central processing unit shown in an exemplary embodiment;
Fig. 8 is that the disclosure is according to a kind of structure controlling device for central processing unit shown in an exemplary embodiment Schematic diagram.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they are only with the most appended The example of the apparatus and method that some aspects that described in detail in claims, the disclosure are consistent.
The term used in the disclosure is only merely for describing the purpose of specific embodiment, and is not intended to be limiting the disclosure. " a kind of ", " described " and " being somebody's turn to do " of singulative used in disclosure and the accompanying claims book is also intended to include majority Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wraps Any or all containing one or more projects of listing being associated may combination.
Although should be appreciated that in the disclosure possible employing term first, second, third, etc. to describe various information, but this A little information should not necessarily be limited by these terms.These terms are only used for same type of information is distinguished from each other out.Such as, without departing from In the case of disclosure scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as One information.Depend on linguistic context, word as used in this " if " can be construed to " ... time " or " when ... Time " or " in response to determining ".
The central processing unit control method that disclosure embodiment provides may be used for terminal, such as, and smart mobile phone, flat board electricity Brain, personal digital assistant (Personal Digital Assistant, PDA) etc..Wherein, the central processing unit of described terminal CPU includes multiple core cpu.As it is shown in figure 1, Fig. 1 is to control according to a kind of central processing unit shown in an exemplary embodiment Method, comprises the following steps:
In a step 101, the loading condition of described CPU is monitored.
In this step, cause the increase of power consumption in order to avoid frequently detecting described loading condition, can be according to the monitoring cycle Correlation technique is used to monitor the described loading condition of all described core cpus.
In a step 102, according to described loading condition, control the first core cpu in described CPU be in opening or Closed mode, described first core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.
Alternatively, step 102 is as in figure 2 it is shown, Fig. 2 is according to the another kind of central processing unit shown in an exemplary embodiment Control method, comprises the following steps:
In step 102-1, according to the current load value of the described CPU indicated by described loading condition, calculate described working as Front load value accounts for the ratio value of the maximum load value of described CPU.
In this step, described terminal can calculate described current load value according to correlation technique and account for described maximum load value Ratio value.
In step 102-2, according to described ratio value, control described first core cpu and be in described opening or institute State closed mode.
In disclosure embodiment, described first CPU core can be controlled for the different range of the described ratio value calculated The heart, the big core in the most described core cpu is in described opening or described closed mode.
The first situation, described ratio value is less than first threshold.
In disclosure embodiment, alternatively, first threshold can take more than 0 and be less than the arbitrary value between 0.1, i.e. institute State the span of first threshold for (0,0.1].
When described ratio value is less than described first threshold, it may be determined that the load of described CPU is less.The most described terminal Described first core cpu can be closed according to correlation technique, i.e. control described first core cpu and be in described closed mode.From And reduce and open the power consumption that big core produces, and reduce the probability of terminal heating.
But, in order to ensure terminal capabilities, described terminal can allow described first core cpu to ask in response to object run Ask and be in described opening at short notice.
Alternatively, described terminal detects whether to receive object run request according to correlation technique.Described object run please Asking can be of short duration high-performance request, and the most described object run request is that the operation frequency needing described CPU is not less than default Target frequency value, and the first duration is less than the operation requests of preset duration.Described first duration is that user initiates The duration that described object run request is lasting.
Such as, described object run request can be a certain application program (APPlication, APP) be initially opened behaviour Ask, or can also is that the request etc. that the quick sliding operation by carrying out on the touch screen of described terminal is initiated.
When described terminal determines and receives described object run request, described first can be controlled according to correlation technique Core cpu is in described opening, so that described terminal can be performed and described target by described first core cpu The corresponding object run of operation requests.Open certain APP, or the unlocking screen operation corresponding with quick sliding operation first Deng.When described terminal completes described object run, again control described first core cpu and be in described closed mode, thus While ensure that terminal capabilities, reduce and open the power consumption that big core produces, and reduce the probability of terminal heating.
The second situation, described ratio value is more than Second Threshold.
In disclosure embodiment, alternatively, Second Threshold can take the arbitrary value between [0.8,1].
When described ratio value is more than described Second Threshold, it may be determined that the load of described CPU is the biggest.The most described terminal Described first core cpu can be closed according to correlation technique, i.e. control described first core cpu and be in described closed mode.From And reduce and open the power consumption that big core produces, and reduce the probability of terminal heating.
But, it is contemplated that load current for described CPU is very big, if turned off big core, can cause the process speed of described CPU Degree reduces, and affects termination function.Therefore, it can detect whether to there is subject thread, when there is described subject thread, passing through rank Section property is opened described first core cpu and is carried out cpu performance compensation.Wherein, described subject thread is take described CPU second Duration is the thread of the target multiple of the default monitoring cycle duration in described monitoring cycle.Certainly, target multiple needs big In 1.Described second duration is total duration that described subject thread takies described CPU before the end.
In disclosure embodiment, described terminal can detect whether to there is described subject thread according to correlation technique.Work as inspection Measure when there is described subject thread, control described first core cpu and be in described opening, and described first core cpu The 3rd duration being in described opening is target duration.When reaching described target duration, control a described CPU Core is in described closed mode.Described 3rd duration is described for being in by the end of the first core cpu described in current time The duration of opening.Certainly, if there is no described subject thread, the most described first core cpu may be at described closedown State.
In disclosure embodiment, described target duration T '=γ × C × T, wherein, described γ is preset ratio value, and C is institute Stating target multiple, T is the default monitoring cycle duration in the described terminal monitoring cycle when monitoring loading condition.Alternatively, institute The span stating γ can be the arbitrary value between (0,0.5).
By said process, described first core cpu can be closed when described cpu load is the biggest, the biggest core, from And reduce and open the power consumption that big core produces, and reduce the probability of terminal heating.It addition, in order to ensure terminal capabilities, Allow to carry out when same thread persistently takies described CPU cpu performance compensation, i.e. described first core cpu of interim unlatching.? While ensure that terminal capabilities, by being scheduling processing for different core cpus, decrease process on different core cpu Migrate the cost brought.
The third situation, described ratio value is not less than described first threshold and the most described Second Threshold.
At this point it is possible to it is bigger to determine that the load of the first situation is compared in the load of described CPU.Described terminal can be according to phase Pass technology closes described first core cpu, i.e. controls described first core cpu and is in described closed mode.Thus reduce unlatching The power consumption that big core produces, and reduce the probability of terminal heating.
In order to ensure terminal capabilities, described terminal can allow described first core cpu to ask in response to described object run Ask and be in described opening at short notice.Control described first core cpu to be in response to described object run request Control when the process of described opening and described ratio value are less than described first threshold described first core cpu be in described in open The process opening state is identical, does not repeats them here.
It addition, in order to allow described ratio value quickly fall back to the interval interior of (0, first threshold), equally carry out CPU Can compensate.The process of performance compensation carries out performance compensation process when being higher than described Second Threshold with described ratio value is identical, This repeats no more equally.
Certainly, do not receive described object run request if described terminal detects and there is not described subject thread Time, described first core cpu can be controlled according to correlation technique and be in described closed mode.
By said process, described first core cpu can be closed when described cpu load is bigger, the biggest core, from And reduce and open the power consumption that big core produces, and reduce the probability of terminal heating.It addition, in order to ensure terminal capabilities, Described first core cpu is allowed to be in described opening at short notice in response to described object run request.In order to allow Described ratio value quickly falls back to relatively low interval range, it is allowed to carry out cpu performance when same thread persistently takies described CPU Compensate, i.e. described first core cpu of interim unlatching.While ensure that terminal capabilities, by entering for different core cpus Row dispatch deal, decreases the cost that on different core cpu, process migration brings.
In above-described embodiment, described terminal can control described first according to the loading condition of the described CPU monitored Core cpu, the biggest core is in opening or closed mode.Thus reduce and open the power consumption that big core produces, and reduce The probability of terminal heating.
Corresponding with preceding method embodiment, the disclosure additionally provides the embodiment of device.
The device that disclosure embodiment provides may be used for terminal, and the central processor CPU of described terminal includes multiple CPU Core.As it is shown on figure 3, Fig. 3 is the disclosure controls device block diagram according to a kind of central processing unit shown in an exemplary embodiment, Including: load monitoring module 21 and control module 22.
Wherein, described load monitoring module 21, it is configured to monitor the loading condition of described CPU;
Described control module 22, is configured to the described loading condition according to the monitoring of described load monitoring module 21, controls The first core cpu in described CPU is in opening or closed mode, and described first core cpu is that operation frequency is higher than institute State the core cpu of other core cpus in CPU.
As shown in Figure 4, Fig. 4 is that the disclosure controls device according to the another kind of central processing unit shown in an exemplary embodiment Block diagram, this embodiment is on the basis of aforementioned embodiment illustrated in fig. 3, and described control module 22 includes: calculating sub module 221 and control System module 222.
Wherein, described calculating sub module 221, it is configured to the described load feelings according to the monitoring of described load monitoring module 21 The current load value of the described CPU indicated by condition, calculates the ratio that described current load value accounts for the maximum load value of described CPU Value;
Described control submodule 222, is configured to the described ratio value calculated according to described calculating sub module 221, controls Described first core cpu is in described opening or described closed mode.
As it is shown in figure 5, Fig. 5 is the disclosure controls device according to the another kind of central processing unit shown in an exemplary embodiment Block diagram, this embodiment is on the basis of aforementioned embodiment illustrated in fig. 4, and described control submodule 222 includes: the first operation requests inspection Survey submodule 01, first and open control submodule the 02, first closing control submodule 03 and the second closing control submodule 04.
Wherein, described first operation requests detection sub-module 01, it is configured as the institute that described calculating sub module 221 calculates When stating ratio value less than first threshold, detecting whether to receive object run request, described object run request needs described CPU Operation frequency be not less than goal-selling frequency values, and the first duration of described object run request is less than when presetting Long;
Described first opens control submodule 02, is configured as described first operation requests detection sub-module 01 detection and connects When receiving described object run request, control described first core cpu and be in described opening;
Described first closing control submodule 03, is configured as described terminal and opens control submodule by described first 02 controls described first core cpu being in described opening connects according to described first operation requests detection sub-module 01 detection When corresponding object run has been asked in the described object run received, control described first core cpu and be in described closedown shape State;
Described second closing control submodule 04, is configured as described first operation requests detection sub-module 01 and detects not When receiving described object run request, control described first core cpu and be in described closed mode.
As shown in Figure 6, Fig. 6 is that the disclosure controls device according to the another kind of central processing unit shown in an exemplary embodiment Block diagram, this embodiment is on the basis of aforementioned embodiment illustrated in fig. 5, and described control submodule 222 also includes: first thread detects Submodule 05, second is opened and is controlled submodule the 06, the 3rd closing control submodule 07 and the 4th closing control submodule 08.
Wherein, described first thread detection sub-module 05, it is configured as the described ratio that described calculating sub module 221 calculates Example value higher than Second Threshold time, detect whether to exist subject thread, described subject thread be take described CPU second continue time The thread of the target multiple of the default monitoring cycle duration in a length of described monitoring cycle;
Described second opens control submodule 06, is configured as described first thread detection sub-module 05 and detects the presence of During described subject thread, control described first core cpu and be in described opening;
Described 3rd closing control submodule 07, is configured as described second and opens and control submodule 06 and control described the One core cpu is in the 3rd duration of described opening when reaching target duration, controls described first core cpu and is in Described closed mode;
Described 4th closing control submodule 08, is configured as described first thread detection sub-module 05 and detects and do not deposit When described subject thread, control described first core cpu and be in described closed mode.
As it is shown in fig. 7, Fig. 7 is the disclosure controls device according to the another kind of central processing unit shown in an exemplary embodiment Block diagram, this embodiment is on the basis of aforementioned embodiment illustrated in fig. 6, and described control submodule 222 also includes: the second operation requests Detection sub-module the 09, the 3rd unlatching control submodule the 10, the 5th closing control submodule the 11, second thread detection sub-module 12, 4th opens control submodule the 13, the 6th closing control submodule 14 and the 7th closing control submodule 15.
Wherein, described second operation requests detection sub-module 09, it is configured as the institute that described calculating sub module 221 calculates Stating ratio value when being not less than described first threshold and the most described Second Threshold, detecting whether to receive described object run please Ask;
Described 3rd opens control submodule 10, is configured as described second operation requests detection sub-module 09 detection and connects When receiving described object run request, control described first core cpu and be in described opening;
Described 5th closing control submodule 11, is configured as described terminal and opens control submodule by the described 3rd Control 10 described first core cpus being in described opening to connect according to described second operation requests detection sub-module 09 detection When corresponding object run has been asked in the described object run received, control described first core cpu and be in described closedown shape State;
Described second thread detection sub-module 12, is configured as the described ratio value that described calculating sub module 221 calculates When being not less than described first threshold and the most described Second Threshold, detect whether to there is described subject thread;
Described 4th opens control submodule 13, is configured as described second thread detection sub-module 12 and detects the presence of During described subject thread, control described first core cpu and be in described opening;
Described 6th closing control submodule 14, is configured as the described 4th and opens and control submodule 13 and control described the One core cpu is in described 3rd duration of described opening when reaching described target duration, controls a described CPU Core is in described closed mode;
Described 7th closing control submodule 15, is configured as described second operation requests detection sub-module 09 and detects Do not receive described object run request and described second thread detection sub-module 12 detect when there is not described subject thread, Control described first core cpu and be in described closed mode.
For device embodiment, owing to it corresponds essentially to embodiment of the method, so relevant part sees method in fact The part executing example illustrates.Device embodiment described above is only schematically, wherein illustrates as separating component Unit can be or may not be physically separate, the parts shown as unit can be or may not be Physical location, i.e. may be located at a place, or can also be distributed on multiple NE.Can be according to the actual needs Select some or all of module therein to realize the purpose of disclosure scheme.Those of ordinary skill in the art are not paying wound In the case of the property made work, i.e. it is appreciated that and implements.
Accordingly, the disclosure also provides for a kind of central processing unit and controls device, and described device is used for terminal, described terminal Central processor CPU includes that multiple core cpu, described device include:
Processor;
For storing the memorizer of processor executable;
Wherein, described processor is configured to:
Monitor the loading condition of described CPU;
According to described loading condition, control the first core cpu in described CPU and be in opening or closed mode, institute Stating the first core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.
Fig. 8 is the structural representation controlling device according to a kind of central processing unit shown in an exemplary embodiment.Such as Fig. 8 Shown in, controlling device 800 according to a kind of central processing unit shown in an exemplary embodiment, this device 800 can be computer, Mobile phone, digital broadcast terminal, messaging devices, game console, tablet device, armarium, body-building equipment, individual The terminals such as digital assistants.
With reference to Fig. 8, device 800 can include following one or more assembly: processes assembly 801, memorizer 802, power supply Assembly 803, multimedia groupware 804, audio-frequency assembly 805, input/output (I/O) interface 806, sensor cluster 807, Yi Jitong Letter assembly 808.
Process assembly 801 and generally control the integrated operation of device 800, such as with display, call, data communication, phase The operation that machine operation and record operation are associated.Process assembly 801 and can include that one or more processor 809 performs to refer to Order, to complete all or part of step of above-mentioned method.Additionally, process assembly 801 can include one or more module, just Mutual in process between assembly 801 and other assembly.Such as, process assembly 801 and can include multi-media module, many to facilitate Media component 804 and process between assembly 801 mutual.
Memorizer 802 is configured to store various types of data to support the operation at device 800.Showing of these data Example includes any application program for operation on device 800 or the instruction of method, contact data, telephone book data, disappears Breath, picture, video etc..Memorizer 802 can be by any kind of volatibility or non-volatile memory device or their group Close and realize, such as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), erasable compile Journey read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash Device, disk or CD.
The various assemblies that power supply module 803 is device 800 provide electric power.Power supply module 803 can include power management system System, one or more power supplys, and other generates, manages and distributes, with for device 800, the assembly that electric power is associated.
The screen of one output interface of offer that multimedia groupware 804 is included between described device 800 and user.One In a little embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen Curtain may be implemented as touch screen, to receive the input signal from user.Touch panel includes one or more touch sensing Device is with the gesture on sensing touch, slip and touch panel.Described touch sensor can not only sense touch or sliding action Border, but also detect the persistent period relevant to described touch or slide and pressure.In certain embodiments, many matchmakers Body assembly 804 includes a front-facing camera and/or post-positioned pick-up head.When device 800 is in operator scheme, such as screening-mode or During video mode, front-facing camera and/or post-positioned pick-up head can receive the multi-medium data of outside.Each front-facing camera and Post-positioned pick-up head can be a fixing optical lens system or have focal length and optical zoom ability.
Audio-frequency assembly 805 is configured to output and/or input audio signal.Such as, audio-frequency assembly 805 includes a Mike Wind (MIC), when device 800 is in operator scheme, during such as call model, logging mode and speech recognition mode, mike is joined It is set to receive external audio signal.The audio signal received can be further stored at memorizer 802 or via communication set Part 808 sends.In certain embodiments, audio-frequency assembly 805 also includes a speaker, is used for exporting audio signal.
I/O interface 806 provides interface for processing between assembly 801 and peripheral interface module, above-mentioned peripheral interface module can To be keyboard, put striking wheel, button etc..These buttons may include but be not limited to: home button, volume button, start button and lock Set button.
Sensor cluster 807 includes one or more sensor, for providing the state of various aspects to comment for device 800 Estimate.Such as, what sensor cluster 807 can detect device 800 opens/closed mode, the relative localization of assembly, such as described Assembly is display and the keypad of device 800, and sensor cluster 807 can also detect device 800 or 800 1 assemblies of device Position change, the presence or absence that user contacts with device 800, device 800 orientation or acceleration/deceleration and device 800 Variations in temperature.Sensor cluster 807 can include proximity transducer, is configured to when not having any physical contact detect The existence of neighbouring object.Sensor cluster 807 can also include optical sensor, such as CMOS or ccd image sensor, is used for becoming Use as in application.In certain embodiments, this sensor cluster 807 can also include acceleration transducer, gyro sensors Device, Magnetic Sensor, pressure transducer or temperature sensor.
Communications component 808 is configured to facilitate the communication of wired or wireless mode between device 800 and miscellaneous equipment.Device 800 can access wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof.An exemplary enforcement In example, communications component 808 receives the broadcast singal from external broadcasting management system or broadcast related information via broadcast channel. In one exemplary embodiment, described communications component 808 also includes near-field communication (NFC) module, to promote junction service.Example As, can be based on RF identification (RFID) technology in NFC module, Infrared Data Association (IrDA) technology, ultra broadband (UWB) technology, Bluetooth (BT) technology and other technology realize.
In the exemplary embodiment, device 800 can be by one or more application specific integrated circuits (ASIC), numeral letter Number processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electron component realize, be used for performing said method.
In the exemplary embodiment, a kind of non-transitory computer-readable recording medium including instruction, example are additionally provided As included the memorizer 802 of instruction, above-mentioned instruction can have been performed said method by the processor 809 of device 800.Such as, Described non-transitory computer-readable recording medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk With optical data storage devices etc..
Wherein, when the instruction in described storage medium is performed by described processor so that device 800 is able to carry out in one Central processor control method, including:
Monitor the loading condition of described CPU;
According to described loading condition, control the first core cpu in described CPU and be in opening or closed mode, institute Stating the first core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to its of the disclosure Its embodiment.The disclosure is intended to any modification, purposes or the adaptations of the disclosure, these modification, purposes or Person's adaptations is followed the general principle of the disclosure and includes the undocumented common knowledge in the art of the disclosure Or conventional techniques means.Description and embodiments is considered only as exemplary, and the true scope of the disclosure and spirit are by following Claim point out.
The foregoing is only the preferred embodiment of the disclosure, not in order to limit the disclosure, all essences in the disclosure Within god and principle, any modification, equivalent substitution and improvement etc. done, should be included within the scope of disclosure protection.

Claims (11)

1. a central processing unit control method, described method is used for terminal, and the central processor CPU of described terminal includes multiple Core cpu, it is characterised in that described method includes:
Monitor the loading condition of described CPU;
According to described loading condition, control the first core cpu in described CPU and be in opening or closed mode, described One core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.
Method the most according to claim 1, it is characterised in that described according to described loading condition, controls in described CPU First core cpu is in opening or closed mode, including:
According to the current load value of the described CPU indicated by described loading condition, calculate described current load value and account for described CPU's The ratio value of maximum load value;
According to described ratio value, control described first core cpu and be in described opening or described closed mode.
Method the most according to claim 2, it is characterised in that described according to described ratio value, controls described first CPU core The heart is in described opening or described closed mode, including:
When described ratio value is less than first threshold, detecting whether to receive object run request, described object run request is The operation frequency needing described CPU is not less than goal-selling frequency values, and the first duration is less than the operation of preset duration Request;
When receiving described object run request, control described first core cpu and be in described opening;
When described terminal has asked corresponding object run by described first core cpu according to described object run, control Make described first core cpu and be in described closed mode;
When not receiving described object run request, control described first core cpu and be in described closed mode.
Method the most according to claim 3, it is characterised in that described according to described ratio value, controls described first CPU core The heart is in described opening or described closed mode, also includes:
When described ratio value is higher than Second Threshold, detecting whether to exist subject thread, described subject thread is for taking described CPU The thread of target multiple of the default monitoring cycle duration that the second duration is the described monitoring cycle;
When detecting the presence of described subject thread, control described first core cpu and be in described opening;
When the 3rd duration that described first core cpu is in described opening reaches target duration, control described One core cpu is in described closed mode;
When detect there is not described subject thread time, control described first core cpu and be in described closed mode.
Method the most according to claim 4, it is characterised in that described according to described ratio value, controls described first CPU core The heart is in described opening or described closed mode, also includes:
When described ratio value is not less than described first threshold and the most described Second Threshold, detect whether to receive described mesh Mark operation requests;
When receiving described object run request, control described first core cpu and be in described opening;
When described terminal has asked corresponding object run by described first core cpu according to described object run, control Make described first core cpu and be in described closed mode;
When described ratio value is not less than described first threshold and the most described Second Threshold, detect whether to there is described target Thread;
When detecting the presence of described subject thread, control described first core cpu and be in described opening;
When described 3rd duration that described first core cpu is in described opening reaches described target duration, control Make described first core cpu and be in described closed mode;
When detecting that not receiving described object run asks and there is not described subject thread, control described first CPU core The heart is in described closed mode.
6. central processing unit controls a device, and described device is used for terminal, and the central processor CPU of described terminal includes multiple Core cpu, it is characterised in that described device includes:
Load monitoring module, is configured to monitor the loading condition of described CPU;
Control module, is configured to the described loading condition according to described load monitoring module monitors, controls in described CPU One core cpu is in opening or closed mode, described first core cpu be operation frequency be higher than in described CPU other The core cpu of core cpu.
Device the most according to claim 6, it is characterised in that described control module includes:
Calculating sub module, is configured to the described CPU indicated by the described loading condition according to described load monitoring module monitors Current load value, calculate the ratio value that described current load value accounts for the maximum load value of described CPU;
Control submodule, be configured to the described ratio value calculated according to described calculating sub module, control described first core cpu It is in described opening or described closed mode.
Device the most according to claim 7, it is characterised in that described control submodule includes:
First operation requests detection sub-module, is configured as the described ratio value of described calculating sub module calculating less than the first threshold During value, detecting whether to receive object run request, described object run request is that the operation frequency needing described CPU is not less than Goal-selling frequency values, and the first duration is less than the operation requests of preset duration;
First opens control submodule, is configured as described first operation requests detection sub-module detection and receives described target During operation requests, control described first core cpu and be in described opening;
First closing control submodule, is configured as described terminal and controls to be in institute by described first unlatching control submodule Described first core cpu stating opening detects, according to described first operation requests detection sub-module, the described target received When operation requests completes corresponding object run, control described first core cpu and be in described closed mode;
Second closing control submodule, is configured as described first operation requests detection sub-module detection and does not receives described mesh During mark operation requests, control described first core cpu and be in described closed mode.
Device the most according to claim 8, it is characterised in that described control submodule also includes:
First thread detection sub-module, is configured as the described ratio value of described calculating sub module calculating higher than Second Threshold Time, detecting whether to exist subject thread, described subject thread is that to take second duration of described CPU be the described monitoring cycle The thread of target multiple of default monitoring cycle duration;
Second opens control submodule, is configured as described first thread detection sub-module and detects the presence of described subject thread Time, control described first core cpu and be in described opening;
3rd closing control submodule, is configured as described second and opens at control submodule described first core cpu of control When the 3rd duration of described opening reaches target duration, control described first core cpu and be in described closedown shape State;
4th closing control submodule, is configured as described first thread detection sub-module and detects and there is not described score Cheng Shi, controls described first core cpu and is in described closed mode.
Device the most according to claim 9, it is characterised in that described control submodule also includes:
Second operation requests detection sub-module, the described ratio value being configured as the calculating of described calculating sub module is not less than described When first threshold and the most described Second Threshold, detect whether to receive described object run request;
3rd opens control submodule, is configured as described second operation requests detection sub-module detection and receives described target During operation requests, control described first core cpu and be in described opening;
5th closing control submodule, is configured as described terminal and controls to be in institute by described 3rd unlatching control submodule Described first core cpu stating opening detects, according to described second operation requests detection sub-module, the described target received When operation requests completes corresponding object run, control described first core cpu and be in described closed mode;
Second thread detection sub-module, the described ratio value being configured as the calculating of described calculating sub module is not less than described first When threshold value and the most described Second Threshold, detect whether to there is described subject thread;
4th opens control submodule, is configured as described second thread detection sub-module and detects the presence of described subject thread Time, control described first core cpu and be in described opening;
6th closing control submodule, is configured as the described 4th and opens at control submodule described first core cpu of control When described 3rd duration of described opening reaches described target duration, control described first core cpu and be in institute State closed mode;
7th closing control submodule, be configured as described second operation requests detection sub-module detect do not receive described Object run request and described second thread detection sub-module detect when there is not described subject thread, control described first Core cpu is in described closed mode.
11. 1 kinds of central processing units control device, and described device is used for terminal, and the central processor CPU of described terminal includes many Individual core cpu, it is characterised in that described device includes:
Processor;
For storing the memorizer of processor executable;
Wherein, described processor is configured to:
Monitor the loading condition of described CPU;
According to described loading condition, control the first core cpu in described CPU and be in opening or closed mode, described One core cpu is the core cpu that operation frequency is higher than other core cpus in described CPU.
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