CN112286690A - Method and device for dynamically adjusting CPU core, electronic equipment and storage medium - Google Patents

Method and device for dynamically adjusting CPU core, electronic equipment and storage medium Download PDF

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Publication number
CN112286690A
CN112286690A CN202011241260.XA CN202011241260A CN112286690A CN 112286690 A CN112286690 A CN 112286690A CN 202011241260 A CN202011241260 A CN 202011241260A CN 112286690 A CN112286690 A CN 112286690A
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Prior art keywords
state
resource
determining
application
cpu core
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CN202011241260.XA
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Chinese (zh)
Inventor
孙红辉
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN202011241260.XA priority Critical patent/CN112286690A/en
Publication of CN112286690A publication Critical patent/CN112286690A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
    • G06F9/505—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals considering the load
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2209/00—Indexing scheme relating to G06F9/00
    • G06F2209/50—Indexing scheme relating to G06F9/50
    • G06F2209/5012—Processor sets
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2209/00—Indexing scheme relating to G06F9/00
    • G06F2209/50—Indexing scheme relating to G06F9/50
    • G06F2209/5022—Workload threshold
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2209/00—Indexing scheme relating to G06F9/00
    • G06F2209/50—Indexing scheme relating to G06F9/50
    • G06F2209/506—Constraint

Abstract

The invention provides a method and a device for dynamically adjusting a CPU core, electronic equipment and a storage medium. The method for dynamically adjusting the CPU core comprises the steps of determining the state of system resources in the running process of a system; and if the system resource state is a resource tension state, limiting the number of available CPU cores of the background application. The problems that the operating system is slowed down and the cruising ability is poor due to the fact that the application is hung on the background of the operating system for a long time are solved.

Description

Method and device for dynamically adjusting CPU core, electronic equipment and storage medium
Technical Field
The present invention relates to the technical field of CPU resource scheduling, and in particular, to a method and an apparatus for dynamically adjusting a CPU core, an electronic device, and a storage medium.
Background
The CPU core is the most important component of the CPU, and all computations, commands received/stored, and data processed by the CPU core are executed. However, with more and more operating systems such as Android, there always exist some applications that are hung in the operating system background for a long time, which may cause the operating system to become slow and the cruising ability to become poor.
Therefore, the problem that the application is hung in the background of the operating system for a long time to cause the operating system to slow down and the endurance to the operating system to be poor is urgently needed to be solved in the field.
Disclosure of Invention
In order to solve the problems that the operating system is slowed down and the cruising ability is poor due to the fact that the application is hung on the background of the operating system for a long time, the invention provides a method and a device for dynamically adjusting a CPU core, electronic equipment and a storage medium.
In a first aspect, the present invention provides a method for dynamically adjusting a CPU core, including:
determining the state of system resources in the running process of the system;
and if the system resource state is a resource tension state, limiting the number of available CPU cores of the background application.
According to an embodiment of the present invention, optionally, the determining the system resource status during the system operation process includes:
acquiring the CPU core occupancy rate in the system operation process;
and when the CPU core occupancy rate is greater than a first preset value, determining that the system resource state is a resource tension state.
According to an embodiment of the present invention, optionally, the determining the system resource status during the system operation process includes:
acquiring the frame dropping rate of foreground application in the system operation process;
and when the frame dropping rate is greater than a second preset value, determining that the system resource state is a resource tension state.
According to an embodiment of the present invention, optionally, the determining the system resource status during the system operation process includes:
determining whether the foreground application is a weight-level application;
and when the foreground application is a heavyweight application, determining that the system resource state is a resource tension state.
According to an embodiment of the present invention, optionally, the determining the system resource status during the system operation process includes:
judging whether the system is in a bright screen state or not;
and when the system is in a bright screen state, determining that the system resource state is a resource tension state.
According to an embodiment of the present invention, optionally, the determining the system resource status during the system operation process includes:
acquiring the number of background applications;
and when the number of the background applications is larger than a third preset value, determining that the system resource state is a resource tension state.
According to an embodiment of the present invention, optionally, the limiting the number of available CPU cores of the background application includes:
the number of available CPU cores of the group to which the background application belongs is modified.
According to an embodiment of the present invention, optionally, the limiting the number of available CPU cores of the background application includes:
binding the background application to the unscheduled CPU core.
According to an embodiment of the invention, optionally, the method further comprises:
and if the system resource state is not in the resource tension state, canceling the limitation operation on the number of available CPU cores of the background application.
In a second aspect, the present invention provides an apparatus for dynamically adjusting a CPU core, comprising:
the determining module is used for determining the state of the system resource in the running process of the system;
and the operation module is used for limiting the number of available CPU cores of the background application if the system resource state is a resource tension state.
In a third aspect, the present invention provides an electronic device, including a memory and a processor, where the memory stores a computer program, and the computer program, when executed by the processor, implements the method for dynamically adjusting a CPU core according to the first aspect.
In a fourth aspect, the present invention provides a storage medium having a computer program stored thereon, where the computer program, when executed by one or more processors, implements the method for dynamically adjusting CPU cores of the first aspect.
Compared with the prior art, the invention at least has the following beneficial effects:
determining the state of system resources in the running process of the system; when the system resource state is a resource shortage state, the number of available CPU cores of the background application is limited, and the problems that the operating system is slowed down and the cruising ability is poor due to the fact that the application is hung on the background of the operating system for a long time are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flowchart of a method for dynamically adjusting a CPU core according to an embodiment of the present invention;
fig. 2 is a block diagram of an apparatus for dynamically adjusting a CPU core according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Fig. 1 shows a flowchart of a method for dynamically adjusting a CPU core, and as shown in fig. 1, the present embodiment provides a method for dynamically adjusting a CPU core, including the following steps:
and step S110, determining the system resource state in the system running process.
And step S120, if the system resource state is a resource tension state, limiting the number of available CPU cores of the background application.
In the embodiment, the resource state of the system is monitored in real time in the running process of the system, and when the system is in a resource shortage state, the number of available CPU cores of background application (application running in the background) is limited in time, so that the situation that the system is jammed and has poor cruising ability due to the fact that the background application occupies too many CPU cores is avoided, and the system smoothness and cruising ability are effectively improved.
It can be understood that, when the system resource state is in a non-resource-tight state, the number of available CPU cores of the background application does not need to be adjusted, and the number of available CPU cores of the background application is not limited. Therefore, the method further comprises:
and step S130, if the system resource state is not the resource tension state, canceling the limitation operation on the number of available CPU cores of the background application.
The method has the advantages that the number of the available CPU cores of the background application is limited when the system resource state is in the resource shortage state, and the limitation operation on the number of the available CPU cores of the background application is cancelled when the system resource state is not in the resource shortage state, so that the CPU cores can be dynamically adjusted, the utilization rate of the CPU cores of the multi-core processor is improved, and the system smoothness and the cruising ability are effectively improved.
In practical application, the system resource state may be determined in real time during the system operation process, or may be determined periodically, for example, once every 5s, 10s, or 5min, and the operation of limiting the number of available CPU cores of the background application is determined or cancelled according to the detected system resource state.
In some embodiments, it may be determined whether the system is in a resource-tight state according to the CPU core occupancy rate during the system operation, and the determining the system resource state during the system operation in step S110 includes the following sub-steps:
and S110-1a, acquiring the CPU core occupancy rate in the system operation process.
And step S110-2a, when the CPU core occupancy rate is greater than a first preset value, determining that the system resource state is a resource tension state.
It can be understood that when the CPU core occupancy is not greater than the first preset value, the system resource status is determined not to be the resource tense status.
For example, if the first preset value is 90%, and the occupied CPU core is greater than 90% of all CPU cores of the multi-core processor, the system is stuck and the cruising ability is deteriorated, it is determined that the system resource state at this time is a resource shortage state, and it is necessary to perform a limiting operation on the number of available CPU cores of the background application to alleviate the resource shortage state. On the contrary, if the CPU core occupancy rate does not reach 90%, the system is considered to be running smoothly, and it is determined that the system resource state at this time is not a resource tension state, that is: the system is idle.
In other embodiments, it may be determined whether the system is in a resource-stressed state according to a frame drop rate of a foreground application during the system operation process, where the determining the system resource state during the system operation process in step S110 includes the following sub-steps:
and S110-1b, acquiring the frame dropping rate of foreground application in the system operation process.
And step S110-2b, when the frame dropping rate is greater than a second preset value, determining that the system resource state is a resource tension state.
In practical application, the preset frame number may be set to 15, 20, or 30, or other values, the second preset value may be set to 5, and the preset frame number and the second preset value may be set according to actual requirements, which is not limited herein.
Taking the unit time of 1 second, the preset frame number of 15 and the second preset value of 5 as examples, according to the frame dropping rate of the foreground application in the system running process obtained in the system running process, when the number of continuous 15 frame dropping times in 1 second is more than 5, the system resource state is determined to be the resource tension state, and the number of available CPU cores of the background application needs to be limited to relieve the resource tension state. On the contrary, if the number of times of continuously dropping 15 frames in 1 second is less than 5 times, the system is considered to run smoothly, and the system resource state at the moment is determined not to be the resource tension state.
In other embodiments, it may be determined whether the system is in a resource-stressed state according to whether a foreground application (a foreground running application) is a weight-level application, and the determining the system resource state in the running process of the system in step S110 includes the following sub-steps:
and step S110-1c, determining whether the foreground application is a weight grade application.
And S110-2c, when the current station application is the weight level application, determining that the system resource state is the resource tension state.
For example, when the foreground application is the weight-level application, the resource of the system is in shortage due to more required resources, and the number of available CPU cores of the background application needs to be limited to relieve the resource shortage state, it can be understood that the standards for judging the weight-level application may be different depending on different systems or different hardware platforms, and the weight-level application may be set according to actual conditions.
In other embodiments, it may be determined whether the system is in a resource-stressed state according to whether the system is in a bright-screen state, and the determining the system resource state in the operation process of the system in step S110 includes the following sub-steps:
and step S110-1d, judging whether the system is in a bright screen state.
And S110-2d, when the system is in a bright screen state, determining that the system resource state is a resource tension state.
When the system is in a bright screen state, namely the screen is in a bright state, the system is considered to consume more resources, the system resource state is determined to be a resource tension state, and the number of available CPU cores of background application needs to be limited so as to relieve the resource tension state; on the contrary, when the screen is in the off state, the system is considered to consume less resources, and the system resource state is determined not to be the resource tension state.
In other embodiments, it may be determined whether the system is in a resource-stressed state according to the number of background applications, and the determining the system resource state during the system operation in step S110 includes the following sub-steps:
and step S110-1e, acquiring the number of background applications.
And S110-2e, when the number of the background applications is larger than a third preset value, determining that the system resource state is a resource tension state.
For example, the third preset value is set to 10, and when the number of the background applications is greater than 10, it indicates that the system is in a resource tension state at this time, and the number of available CPU cores of the background applications needs to be limited to relieve the resource tension state; conversely, if the number of the background applications does not reach 10, the number of available CPU cores of the background applications does not need to be limited.
After the system resource state is determined to be in the resource tension state through any one of the several embodiments for determining the system resource state, in order to relieve the resource tension state, the method reduces the number of available CPU cores of the background application by limiting the number of available CPU cores of the background application, correspondingly reduces the CPU resources consumed by the background application, and correspondingly reduces the power consumption of the background application, thereby improving the smoothness and the cruising ability of the system operation.
In some embodiments, the limiting operation on the number of available CPU cores of the background application in step S120 includes the following sub-steps:
and step S120-a, modifying the number of available CPU cores of the group to which the background application belongs.
In order to facilitate management and control over resource allocation of the applications, the applications are divided into different groups, resources allocated to each group by the system are different, the system determines which applications are applied to which groups according to priorities of the applications, for example, foreground application is performed in a group with the highest priority, background application is performed in a group with the lowest priority, and limitation of the number of available CPU cores of the background application can be achieved by modifying the number of available CPU cores of the lowest priority group where the background application is located.
In practical application, when the application exits to the background, the system adds the application into a background group (background application group), and can limit the number of available CPU cores of the background application by modifying the number of available CPU cores of the background group and reducing the number of available CPU cores of the background application, so that the background application occupies less CPU resources, and the blocking caused by the background application preempting the CPU core resources of the foreground application is effectively prevented.
In some embodiments, the system may further limit the number of available CPU cores of the background application by binding the background application to a specific CPU core, and therefore, the limiting operation on the number of available CPU cores of the background application in step S120 includes the following sub-steps:
and step S120-b, binding the background application to the unscheduled CPU core.
In the system, a scheduling core is a CPU core for executing a CPU core scheduling policy code, the scheduling core controls the switching of a non-scheduling core, and the scheduling core is usually the first core of the CPU.
For example, the application environment is an eight-core CPU, where 4 large cores and 4 small cores are numbered 0 to 7, and the background application is bound to the last two small cores, that is, the background application is limited to run on the CPU cores numbered 2 and 3, where the CPU cores numbered 2 and 3 are non-scheduling CPU cores, and when system resources are in shortage, the background application is bound to the two specific CPU cores, so that system deadlock caused by the occupied scheduling cores is prevented.
Example two
Correspondingly to the embodiment, the embodiment provides an apparatus for dynamically adjusting a CPU core, as shown in fig. 2, including the following modules:
a determining module 210, configured to determine a system resource state during a system operation process;
the operation module 220 is configured to perform an operation of limiting the number of available CPU cores of the background application if the system resource state is a resource tense state.
It is understood that the determining module 210 may be configured to perform the step S110 in the first embodiment, and the operating module 220 may be configured to perform the step S120 in the first embodiment. Further, the operation module 220 can be further configured to execute step S130 in the first embodiment. For details of each step, please refer to embodiment one, which is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or they may be separately fabricated into various integrated circuit modules, or multiple modules or steps thereof may be fabricated into a single integrated circuit module. This invention is not limited to any specific combination of hardware and software.
EXAMPLE III
The embodiment provides an electronic device, which includes a memory and a processor, where the memory stores a computer program, and the computer program, when executed by the processor, implements the method for dynamically adjusting a CPU core according to the first embodiment.
In this embodiment, the Processor may be an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, and is configured to perform the method for dynamically adjusting the CPU core in the above embodiments. The method implemented when the computer program running on the processor is executed may refer to a specific embodiment of the method for dynamically adjusting the CPU core provided in the first embodiment of the present invention, and details are not described here again.
Example four
The present embodiment provides a storage medium, where a computer program is stored, and when the computer program is executed by one or more processors, the method for dynamically adjusting a CPU core according to the first embodiment is implemented.
In this embodiment, the storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk.
In summary, the method, the apparatus, the electronic device, and the storage medium for dynamically adjusting the CPU core provided in the embodiments of the present invention determine the system resource state during the system operation process, can dynamically adjust the number of available CPU cores of the background application according to a specific scenario, and perform a limiting operation on the number of available CPU cores of the background application in a resource-deficient state, thereby solving the problems that the operating system is slowed down and the endurance capability is deteriorated due to the application being hung in the background of the operating system for a long time, and realizing optimization from the scheduling policy of the CPU cores, so that the system is significantly improved in smoothness and endurance capability.
In the embodiments provided in the present invention, it should be understood that the disclosed system and method can be implemented in other ways. The system and method embodiments described above are merely illustrative.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although the embodiments of the present invention have been described above, the above descriptions are only for the convenience of understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (12)

1. A method for dynamically adjusting a CPU core, comprising:
determining the state of system resources in the running process of the system;
and if the system resource state is a resource tension state, limiting the number of available CPU cores of the background application.
2. The method of claim 1, wherein determining the state of system resources during system operation comprises:
acquiring the CPU core occupancy rate in the system operation process;
and when the CPU core occupancy rate is greater than a first preset value, determining that the system resource state is a resource tension state.
3. The method of claim 1, wherein determining the state of system resources during system operation comprises:
acquiring the frame dropping rate of foreground application in the system operation process;
and when the frame dropping rate is greater than a second preset value, determining that the system resource state is a resource tension state.
4. The method of claim 1, wherein determining the state of system resources during system operation comprises:
determining whether the foreground application is a weight-level application;
and when the foreground application is a heavyweight application, determining that the system resource state is a resource tension state.
5. The method of claim 1, wherein determining the state of system resources during system operation comprises:
judging whether the system is in a bright screen state or not;
and when the system is in a bright screen state, determining that the system resource state is a resource tension state.
6. The method of claim 1, wherein determining the state of system resources during system operation comprises:
acquiring the number of background applications;
and when the number of the background applications is larger than a third preset value, determining that the system resource state is a resource tension state.
7. The method according to any of claims 1 to 6, wherein the limiting the number of available CPU cores for the background application comprises:
the number of available CPU cores of the group to which the background application belongs is modified.
8. The method according to any of claims 1 to 6, wherein the limiting the number of available CPU cores for the background application comprises:
binding the background application to the unscheduled CPU core.
9. The method of dynamically adjusting a CPU core as recited in claim 1, further comprising:
and if the system resource state is not in the resource tension state, canceling the limitation operation on the number of available CPU cores of the background application.
10. An apparatus for dynamically adjusting a CPU core, comprising:
the determining module is used for determining the state of the system resource in the running process of the system;
and the operation module is used for limiting the number of available CPU cores of the background application if the system resource state is a resource tension state.
11. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program that, when executed by the processor, implements the method of dynamically adjusting a CPU core of any of claims 1 to 9.
12. A storage medium having stored thereon a computer program which, when executed by one or more processors, implements a method of dynamically adjusting a CPU core as claimed in any one of claims 1 to 9.
CN202011241260.XA 2020-11-09 2020-11-09 Method and device for dynamically adjusting CPU core, electronic equipment and storage medium Withdrawn CN112286690A (en)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
US20130346991A1 (en) * 2012-06-22 2013-12-26 Fujitsu Limited Method of controlling information processing apparatus, and information processing apparatus
CN105700664A (en) * 2016-01-17 2016-06-22 苏黎 Mobile terminal power saving method and mobile terminal
CN107506244A (en) * 2017-09-13 2017-12-22 厦门美图移动科技有限公司 A kind of CPU dispatching methods, mobile terminal and CPU scheduling systems
CN110045809A (en) * 2018-01-12 2019-07-23 广东欧珀移动通信有限公司 Information processing method, device, computer equipment and computer readable storage medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130346991A1 (en) * 2012-06-22 2013-12-26 Fujitsu Limited Method of controlling information processing apparatus, and information processing apparatus
CN105700664A (en) * 2016-01-17 2016-06-22 苏黎 Mobile terminal power saving method and mobile terminal
CN107506244A (en) * 2017-09-13 2017-12-22 厦门美图移动科技有限公司 A kind of CPU dispatching methods, mobile terminal and CPU scheduling systems
CN110045809A (en) * 2018-01-12 2019-07-23 广东欧珀移动通信有限公司 Information processing method, device, computer equipment and computer readable storage medium

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