CN118069542A

CN118069542A - Memory garbage recycling method and electronic equipment

Info

Publication number: CN118069542A
Application number: CN202211466645.5A
Authority: CN
Inventors: 种洋; 朱金鹏; 陈寿岩
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2024-05-24
Also published as: CN116303110B; CN116303110A

Abstract

The application provides a memory garbage recycling method and electronic equipment, and relates to the technical field of terminals. The problem of high GC energy consumption in the electronic equipment is solved. The specific scheme is as follows: receiving a first operation of a user for a first application; starting a first application; the method comprises the steps that when the size of a memory space occupied by a first application after ith garbage collection treatment is a first memory value and the size of a memory occupied by the first application reaches a first preset threshold value from the first memory value, the (i+1) th garbage collection treatment is carried out on the first application, wherein i is a positive integer; when the size of the memory space occupied by the first application after the jth garbage collection treatment is a first memory value and the size of the memory occupied by the first application reaches a second preset threshold value from the first memory value, the jth+1th garbage collection treatment is carried out on the first application, wherein j is a positive integer; under the first preset condition, the first preset threshold value is different from the second preset threshold value.

Description

Memory garbage recycling method and electronic equipment

Technical Field

The application relates to the technical field of terminals, in particular to a memory garbage recycling method and electronic equipment.

Background

When an application is running, it needs to occupy internal memory in the electronic device. The memory area occupied by an application in internal memory may also be referred to as memory space. As application runtime increases, the memory space occupied by the application increases. At the same time, the occupied memory space also has idle memory space which is not accessed by the application program.

In general, the electronic device may use a garbage collection (garbage collection, GC) manner to collect the idle memory space, thereby improving the utilization efficiency of the memory space in the electronic device. However, the existing memory garbage recycling method has the problem of poor recycling effect.

Disclosure of Invention

The embodiment of the application provides a memory garbage recycling method and electronic equipment, which are used for solving the problem of high GC energy consumption in the electronic equipment.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme:

In a first aspect, a method for recycling memory garbage provided by an embodiment of the present application is applied to an electronic device, where the method includes: and receiving a first operation of a user for the first application, and starting the first application in response to the first operation. The first application is subjected to multiple garbage recycling treatments in the running process. For example, when the size of the memory space occupied by the first application after the ith garbage collection treatment is a first memory value and the size of the memory occupied by the first application reaches a first preset threshold value from the first memory value, the (i+1) th garbage collection treatment is performed on the first application, wherein i is a positive integer. And under the condition that the size of the memory space occupied by the first application after the jth garbage collection treatment is a first memory value and the size of the memory occupied by the first application reaches a second preset threshold value from the first memory value, the jth+1th garbage collection treatment is carried out on the first application, wherein j is a positive integer.

In some scenarios, for example, in scenarios where the first preset condition is met, the first preset threshold is different from the second preset threshold.

Illustratively, the first preset condition includes a combination of one or more of: the CPU occupancy rate corresponding to the ith garbage collection treatment of the electronic equipment is different from the CPU occupancy rate corresponding to the jth garbage collection treatment of the electronic equipment. The garbage collection times of the first application in the first time period are different from the garbage collection times in the second time period, wherein the first time period is a time period before the completion of the ith garbage collection treatment, the second time period is a time period before the completion of the jth garbage collection treatment, and the time lengths of the first time period and the second time period are the same. The equipment temperature corresponding to the electronic equipment in the ith garbage recycling treatment is different from the equipment temperature corresponding to the electronic equipment in the jth garbage recycling treatment. The size of the whole machine idle memory corresponding to the electronic equipment in the ith garbage recycling process is different from the size of the whole machine idle memory corresponding to the electronic equipment in the jth garbage recycling process. The on-off screen state of the electronic device corresponding to the ith garbage collection treatment is different from the on-off screen state of the electronic device corresponding to the jth garbage collection treatment.

In the embodiment of the application, the electronic equipment can dynamically adjust the GC waterline value corresponding to the application program according to the change of the running environment (such as CPU occupancy rate, idle memory of the whole machine, equipment temperature and the like) and the running state (such as GC times, on-off state and the like) of the application program.

In other scenarios, for example, where a second preset condition is met, the first preset threshold is the same as the second preset threshold. The second preset condition includes all of the following: the CPU occupancy rate corresponding to the electronic equipment in the ith garbage recycling process is the same as the CPU occupancy rate corresponding to the electronic equipment in the jth garbage recycling process; the number of garbage collection times of the first application in the first time period is the same as the number of garbage collection times in the second time period; the equipment temperature corresponding to the electronic equipment in the ith garbage recycling treatment is the same as the equipment temperature corresponding to the electronic equipment in the jth garbage recycling treatment; the size of the idle memory of the whole machine corresponding to the electronic equipment in the ith garbage recycling process is the same as the size of the idle memory of the whole machine corresponding to the electronic equipment in the jth garbage recycling process; the corresponding on-off screen state of the electronic equipment in the ith garbage recycling treatment is the same as the corresponding on-off screen state in the jth garbage recycling treatment.

In addition, the second preset condition is the same as the type of the condition item corresponding to the first preset condition, and when the first preset condition relates to more or updated condition items, the second preset condition also relates to more or updated condition items.

In some embodiments, the CPU occupancy rate corresponding to the electronic device in the ith garbage collection process includes any one of the following: the CPU occupancy rate occupied by the first application when the ith garbage collection treatment is completed; the CPU occupancy rate occupied by the whole electronic equipment when the ith garbage recycling treatment is completed; the average CPU occupancy rate of the whole machine in a third time period, wherein the third time period is a time period before the ith garbage recycling treatment is completed; the average CPU occupancy rate of the first application in the third time period; the CPU occupancy rate corresponding to the electronic equipment in the j-th garbage recycling process comprises any one of the following: the CPU occupancy rate occupied by the first application when the j-th garbage collection treatment is completed; the CPU occupancy rate occupied by the whole electronic equipment when the j-th garbage recycling treatment is completed; the average CPU occupancy rate of the whole machine in a fourth time period, wherein the fourth time period is a time period before the j-th garbage recycling treatment is completed, and the time length of the third time period is the same as that of the fourth time period; and the average CPU occupancy rate of the first application in the fourth time period.

In some embodiments, the first application is an application located in a set of applications preset in the electronic device. Illustratively, the first application includes a gaming application, an instant messaging application, a system service, a social application, a short video application, a live application, a meeting application, a mail application.

In the embodiment, the electronic device only dynamically adjusts the GC waterline for GC processing on the application in the preset application set according to different running environments and running conditions, so that the GC efficiency is higher and the flexibility is higher.

In some embodiments, the electronic device further includes a second application, where the second application is an application that is outside the preset application set, and the method further includes: receiving a second operation of a user for the second application; in response to the second operation, starting the second application, wherein the second application is subjected to multiple garbage recycling treatments in the running process; the memory space occupied by the second application is a second memory value after the r-th garbage collection treatment, and when the memory size occupied by the second application reaches a third preset threshold value from the second memory value, the r+1th garbage collection treatment is carried out on the second application, wherein r is a positive integer; the size of the memory space occupied by the second application is a second memory value after the kth garbage collection treatment, and when the size of the memory occupied by the second application reaches a fourth preset threshold value from the second memory value, the kth+1th garbage collection treatment is carried out on the second application, wherein k is a positive integer; and under any scene, the third preset threshold value is the same as the fourth preset threshold value.

For example, in a scenario indicated by the third preset condition, the third preset threshold is the same as the fourth preset threshold, and the third preset condition includes one or more of the following: the CPU occupancy rate corresponding to the electronic equipment in the r-th garbage recycling process is different from the CPU occupancy rate corresponding to the electronic equipment in the k-th garbage recycling process; the second application has a different number of garbage collection times in a fifth period of time from a sixth period of time, the fifth period of time being a period of time before completion of the r-th garbage collection process, the sixth period of time being a period of time before completion of the k-th garbage collection process, the fifth period of time being the same as the sixth period of time; the equipment temperature corresponding to the electronic equipment in the r-th garbage recycling process is different from the equipment temperature corresponding to the electronic equipment in the k-th garbage recycling process; the size of the idle memory of the whole machine corresponding to the electronic equipment in the r-th garbage recycling process is different from the size of the idle memory of the whole machine corresponding to the electronic equipment in the k-th garbage recycling process; the on-off screen state corresponding to the electronic equipment in the r-th garbage recycling process is different from the on-off screen state corresponding to the electronic equipment in the k-th garbage recycling process.

For another example, in the scenario indicated by the fourth preset condition, the third preset threshold is the same as the fourth preset threshold, and the fourth preset condition includes all the following items: the CPU occupancy rate corresponding to the electronic equipment in the r-th garbage recycling process is the same as the CPU occupancy rate corresponding to the electronic equipment in the k-th garbage recycling process; the number of garbage collection times of the second application in the fifth time period is the same as the number of garbage collection times in the sixth time period; the equipment temperature corresponding to the electronic equipment in the r-th garbage recycling treatment is the same as the equipment temperature corresponding to the electronic equipment in the k-th garbage recycling treatment; the size of the idle memory of the whole machine corresponding to the electronic equipment in the r-th garbage recycling process is the same as the size of the idle memory of the whole machine corresponding to the electronic equipment in the k-th garbage recycling process; the corresponding on-off screen state of the electronic equipment in the r-th garbage recycling process is the same as the corresponding on-off screen state in the k-th garbage recycling process.

It can be understood that the third preset condition is the same as the type of the condition item corresponding to the fourth preset condition, and when the fourth preset condition includes more or less condition items, the fourth preset condition also corresponds to more or less condition items.

In the above embodiment, for the second application whose GC frequency is not greatly affected by the use situation, the conventional GC waterline value configuration method, that is, the GC waterline of the application is configured by using the fixed GC-related parameters, which not only can meet the GC requirement of the second application, but also can reduce the workload of testing multiple sets of GC-related parameters.

In some embodiments, the application set includes a pre-specified application program, or the application set includes an application program in which at least one of an application usage frequency, an application load size, and an application installation package size meets a preset requirement.

In a second aspect, a method for recycling memory garbage provided by an embodiment of the present application is applied to an electronic device, and the method includes: receiving a third operation of a user for a third application; starting the third application in response to the third operation, wherein the third application is subjected to multiple garbage recycling treatments in the running process; after the mth garbage collection is performed, the size of the memory space occupied by the third application is a third memory value, and when the size of the memory occupied by the third application reaches a fifth preset threshold value from the third memory value, the mth+1th garbage collection processing is performed for the third application, wherein m is a positive integer; after the nth garbage collection is carried out, the size of the memory space occupied by the third application after the nth garbage collection is a fourth memory value, and when the size of the memory occupied by the third application reaches a sixth preset threshold value from the fourth memory value, the (n+1) th garbage collection is carried out for the third application, wherein n is a positive integer; and when the third memory value is different from the fourth memory value, the first ratio corresponding to the fifth preset threshold is different from the second ratio corresponding to the sixth preset threshold, the first ratio is the ratio between the third memory value and the fifth preset threshold, and the second ratio is the ratio between the fourth memory value and the sixth preset threshold.

In the above embodiment, by flexibly setting the more adaptive waterline value under the condition of different memory occupation of the application, the occupation of frequent GC to resources can be reduced, GC processing can be performed more specifically, the occupation of resources can be reduced, and the power consumption can be reduced.

In some embodiments, a fourth application is included in the electronic device, the method comprising: receiving a fourth operation of a user for a fourth application; in response to the fourth operation, starting the fourth application, wherein the fourth application is subjected to multiple garbage recycling treatments in the running process; after the garbage collection for the a-th time is performed, the size of the memory space occupied by the fourth application is a third memory value, and when the size of the memory occupied by the fourth application reaches a seventh preset threshold value from the third memory value, the garbage collection for the a-th time and the (1) -th time is performed for the fourth application, wherein a is a positive integer; after the b-th garbage collection is performed, the size of the memory space occupied by the fourth application is a fourth memory value, and when the size of the memory occupied by the fourth application reaches an eighth preset threshold value from the fourth memory value, the b+1th garbage collection is performed on the fourth application, wherein b is a positive integer; wherein, when the third memory value is different from the fourth memory value, a third ratio corresponding to the seventh preset threshold is the same as a fourth ratio corresponding to the eighth preset threshold, the third ratio is a ratio between the third memory value and the seventh preset threshold, and the fourth ratio is a ratio between the fourth memory value and the eighth preset threshold; the third application is an application located in a preset application set in the electronic device, and the fourth application is an application located outside the application set.

In some embodiments, the application set includes a pre-specified application program, or the application set includes an application program with at least one of an application use frequency, an application load size, and an application installation package size meeting a preset requirement, the third application includes a game application, an instant messaging application, a system service, a social application, a short video application, a live broadcast application, a conference application, and a mail application, and the fourth application includes a network booking application, a music application, and a network banking application.

In a third aspect, an electronic device provided by an embodiment of the present application includes one or more processors and a memory; the memory is coupled to the processor, the memory for storing computer program code comprising computer instructions that, when executed by the one or more processors, operate to: receiving a first operation of a user for a first application; starting the first application in response to the first operation, wherein the first application is subjected to multiple garbage recycling treatments in the running process; the method comprises the steps that after ith garbage collection treatment, the size of a memory space occupied by a first application is a first memory value, and under the condition that the size of the memory occupied by the first application reaches a first preset threshold value from the first memory value, the (i+1) th garbage collection treatment is carried out on the first application, wherein i is a positive integer; when the size of the memory space occupied by the first application is a first memory value after the jth garbage collection treatment and the size of the memory occupied by the first application reaches a second preset threshold value from the first memory value, the jth (plus 1) garbage collection treatment is carried out on the first application, wherein j is a positive integer; under a first preset condition, the first preset threshold value is different from the second preset threshold value; the first preset condition includes a combination of one or more of the following: the CPU occupancy rate corresponding to the electronic equipment in the ith garbage recycling process is different from the CPU occupancy rate corresponding to the electronic equipment in the jth garbage recycling process; the garbage collection times of the first application in a first time period are different from the garbage collection times in a second time period, wherein the first time period is a time period before the completion of the ith garbage collection treatment, the second time period is a time period before the completion of the jth garbage collection treatment, and the time lengths of the first time period and the second time period are the same; the equipment temperature corresponding to the electronic equipment in the ith garbage recycling treatment is different from the equipment temperature corresponding to the electronic equipment in the jth garbage recycling treatment; the size of the idle memory of the whole machine corresponding to the electronic equipment in the ith garbage recycling process is different from the size of the idle memory of the whole machine corresponding to the electronic equipment in the jth garbage recycling process; the on-off screen state corresponding to the electronic equipment in the ith garbage recycling treatment is different from the on-off screen state corresponding to the electronic equipment in the jth garbage recycling treatment.

In some embodiments, the first preset threshold is the same as the second preset threshold under a second preset condition, the second preset condition including all of: the CPU occupancy rate corresponding to the electronic equipment in the ith garbage recycling process is the same as the CPU occupancy rate corresponding to the electronic equipment in the jth garbage recycling process; the number of garbage collection times of the first application in the first time period is the same as the number of garbage collection times in the second time period; the equipment temperature corresponding to the electronic equipment in the ith garbage recycling treatment is the same as the equipment temperature corresponding to the electronic equipment in the jth garbage recycling treatment; the size of the idle memory of the whole machine corresponding to the electronic equipment in the ith garbage recycling process is the same as the size of the idle memory of the whole machine corresponding to the electronic equipment in the jth garbage recycling process; the corresponding on-off screen state of the electronic equipment in the ith garbage recycling treatment is the same as the corresponding on-off screen state in the jth garbage recycling treatment.

In some embodiments, the first application is an application located in a set of applications preset in the electronic device.

In some embodiments, the first application includes a gaming application, an instant messaging application, a system service, a social application, a short video application, a live application, a meeting application, a mail application.

In some embodiments, the electronic device further includes a second application, where the second application is an application that is outside the preset application set, and the one or more processors are configured to: receiving a second operation of a user for the second application; in response to the second operation, starting the second application, wherein the second application is subjected to multiple garbage recycling treatments in the running process; the memory space occupied by the second application is a second memory value after the r-th garbage collection treatment, and when the memory size occupied by the second application reaches a third preset threshold value from the second memory value, the r+1th garbage collection treatment is carried out on the second application, wherein r is a positive integer; the size of the memory space occupied by the second application is a second memory value after the kth garbage collection treatment, and when the size of the memory occupied by the second application reaches a fourth preset threshold value from the second memory value, the kth+1th garbage collection treatment is carried out on the second application, wherein k is a positive integer; wherein the third preset threshold and the fourth preset threshold are the same in any scene.

In a fourth aspect, an electronic device provided by an embodiment of the present application includes one or more processors and a memory; the memory is coupled to the processor, the memory for storing computer program code comprising computer instructions that, when executed by the one or more processors, operate to: receiving a third operation of a user for a third application; starting the third application in response to the third operation, wherein the third application is subjected to multiple garbage recycling treatments in the running process; after the mth garbage collection is performed, the size of the memory space occupied by the third application is a third memory value, and when the size of the memory occupied by the third application reaches a fifth preset threshold value from the third memory value, the mth+1th garbage collection processing is performed for the third application, wherein m is a positive integer; after the nth garbage collection is carried out, the size of the memory space occupied by the third application after the nth garbage collection is a fourth memory value, and when the size of the memory occupied by the third application reaches a sixth preset threshold value from the fourth memory value, the (n+1) th garbage collection is carried out for the third application, wherein n is a positive integer; and when the third memory value is different from the fourth memory value, the first ratio corresponding to the fifth preset threshold is different from the second ratio corresponding to the sixth preset threshold, the first ratio is the ratio between the third memory value and the fifth preset threshold, and the second ratio is the ratio between the fourth memory value and the sixth preset threshold.

In some embodiments, a fourth application is included in the electronic device, the one or more processors to: receiving a fourth operation of a user for a fourth application; in response to the fourth operation, starting the fourth application, wherein the fourth application is subjected to multiple garbage recycling treatments in the running process; after the garbage collection for the a-th time is performed, the size of the memory space occupied by the fourth application is a third memory value, and when the size of the memory occupied by the fourth application reaches a seventh preset threshold value from the third memory value, the garbage collection for the a-th time and the (1) -th time is performed for the fourth application, wherein a is a positive integer; after the b-th garbage collection is performed, the size of the memory space occupied by the fourth application is a fourth memory value, and when the size of the memory occupied by the fourth application reaches an eighth preset threshold value from the fourth memory value, the b+1th garbage collection is performed on the fourth application, wherein b is a positive integer; wherein, when the third memory value is different from the fourth memory value, a third ratio corresponding to the seventh preset threshold is the same as a fourth ratio corresponding to the eighth preset threshold, the third ratio is a ratio between the third memory value and the seventh preset threshold, and the fourth ratio is a ratio between the fourth memory value and the eighth preset threshold; the third application is an application located in a preset application set in the electronic device, and the fourth application is an application located outside the application set.

In a fifth aspect, embodiments of the present application provide a computer storage medium comprising computer instructions which, when run on an electronic device, cause the electronic device to perform the method of the first aspect, the second aspect and possible embodiments thereof.

In a sixth aspect, the application provides a computer program product for causing an electronic device to carry out the method of the first aspect, the second aspect and possible embodiments thereof, when the computer program product is run on the electronic device.

It will be appreciated that the electronic device, the computer storage medium and the computer program product provided in the above aspects are all applicable to the corresponding methods provided above, and therefore, the advantages achieved by the electronic device, the computer storage medium and the computer program product may refer to the advantages in the corresponding methods provided above, and are not repeated herein.

Drawings

FIG. 1 is a diagram illustrating an example of an application occupying a memory space according to an embodiment of the present application;

FIG. 2 is a diagram of an exemplary GC provided in an embodiment of the application;

FIG. 3 is a diagram illustrating an exemplary relationship between an actual occupied memory space and a reserved memory space according to an embodiment of the present application;

fig. 4 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application;

FIG. 5 is a flowchart illustrating a method for recycling memory garbage according to an embodiment of the present application;

FIG. 6 is a flowchart of the substeps of S102 provided in an embodiment of the present application;

FIG. 7 is a second flowchart illustrating a method for recycling memory garbage according to an embodiment of the present application;

FIG. 8 is a diagram illustrating the dynamic adjustment of GC-related parameters of the system_server according to an embodiment of the application;

FIG. 9A is one of exemplary diagrams of a third time period provided by an embodiment of the present application;

FIG. 9B is a second exemplary diagram of a third time period provided by an embodiment of the present application;

FIG. 10 is a flowchart of the substeps of S105 provided by an embodiment of the present application;

fig. 11 is an exemplary diagram of a chip system according to an embodiment of the present application.

Detailed Description

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present embodiment, unless otherwise specified, the meaning of "plurality" is two or more.

Memory in the electronic device is the basis for the running of all applications. The memory may be divided into an internal memory and an external memory. The external memory can be used for storing program files of various installed application programs. The internal memory may be used to provide the memory space that is required to be occupied during the running of the application.

In some embodiments, the electronic device may divide a block of exclusive storage area (also referred to as memory space) in internal memory for an application while the application is running. Obviously, the more applications run, the greater the internal memory footprint. Of course, the available memory space in the electronic device is limited, and under the condition that the memory space is occupied, not only other applications which are not started cannot be started normally, but also the running effect of the started applications is poor.

In some embodiments, the electronic device may employ a GC algorithm to manage the memory space of the internal memory. The GC algorithm described above is an automatic memory management mechanism. When the memory space occupied by a certain application program is not accessed by the application program, that is, when an idle part appears in the memory space allocated to the certain application program, the idle memory space can be recovered by utilizing the GC algorithm, so that the recovered memory space can be used by other application programs. In addition, the above recovery of the idle memory space by the GC algorithm may be simply referred to as performing GC.

The following describes a scenario of GC algorithm usage for application a as an example:

First, when the application a starts to run, the electronic device may allocate the memory space exclusive during running for the application a.

For example, after the application a starts to run, the electronic device may determine the memory space actually occupied by the application a in the internal memory, which is simply referred to as the real memory space. It will be appreciated that the real memory space is the memory space being used by application a. Then, the electronic device may determine the reserved memory space to be allocated to the application a according to the real memory space of the application a. It will be appreciated that the reserved memory space is a memory space that can be used by the application a but is not used temporarily, and the size of the reserved memory space is related to the size of the real memory space. In addition, the real occupied memory space and the reserved memory space belong to the memory space exclusive to the application a. Of course, the memory space actually allocated to the application a by the electronic device may be slightly larger than the sum of the real memory space and the reserved memory space, or may be exactly equal to the sum of the real memory space and the reserved memory space.

During the running of application a, the memory space actually occupied by application a increases. In this scenario, application a may occupy a reserved memory space. It can be understood that the occupied portion of the reserved memory space becomes the real occupied memory space corresponding to the application a, so that as the real occupied memory space corresponding to the application a increases, the corresponding reserved memory space becomes smaller. For example, as shown in fig. 1, when the application a starts running, the real memory space is 60M, and the reserved memory space is 6M. After the application a runs for a period of time, the real memory space may become 65M and the reserved memory space may become 1M.

Obviously, as the running time of the application a increases, the reserved memory space is smaller and smaller, and the real memory space is larger and larger. After the reserved memory space is occupied by the application a, the electronic device needs to allocate the exclusive memory space for the application a again.

In some embodiments, after each allocation of the exclusive memory space for the application a, the electronic device may determine a GC watermark value corresponding to the application a, where the GC watermark value is a threshold that triggers reallocation of the exclusive memory space. In general, the GC watermark value may be equal to the size of the memory space allocated exclusively to application a, e.g., equal to the sum of the size of the real memory space and the reserved memory space. Or slightly larger than the sum of the sizes of the real memory space and the reserved memory space.

And secondly, during the operation of the application a, the corresponding real occupied memory space gradually increases, and the real occupied memory space reaches or exceeds the corresponding GC waterline value, so that the electronic equipment can be triggered to reallocate the exclusive memory space for the application a.

In addition, a memory space that is no longer accessed (or is no longer used) by the application a may occur in the real memory space, such as a so-called idle memory space.

Before the electronic device reallocates the exclusive memory space for the application a, the electronic device may recycle the idle memory space corresponding to the application a through a GC algorithm. The process of reclaiming the free space can refer to the related art, and will not be described herein. For example, as shown in fig. 2, after the real memory space of the application a reaches 67M, if there is 17M free memory space in the real memory space, the real memory space of the application a becomes 50M after GC algorithm processing, that is, the 17M free memory space is recovered.

And then, the electronic equipment can redetermine the reserved memory space corresponding to the application a according to the real occupied memory space processed by the GC. For example, after GC processing, the real memory space corresponding to application a is 50M, and the electronic device may determine the reserved memory space of 5M according to the real memory space of 50M. Thus, the memory space that is reallocated to application a as exclusive is not less than 55M, for example, application a may be allocated 56M and exclusive memory space. The GC watermark value corresponding to application a may be updated to 56M. The application a exclusive 56M memory space comprises a real occupied memory space of 50M and a reserved memory space of 5M.

In this way, the electronic device can effectively manage the occupation of the internal memory by each application by using the GC algorithm.

In addition, in the above process of allocating the memory space exclusive to the application a, the electronic device needs to use multiple GC-related parameters. The GC-related parameters include one or a combination of an exclusive space upper limit, a maximum reserved limit, a minimum reserved limit, and a space utilization ratio.

The upper limit value of the exclusive space refers to the maximum value of the exclusive memory space that can be allocated to the application program, for example, the upper limit value of the exclusive space is 512M, and then the size of the exclusive memory space allocated to the single application program does not exceed 512M. For example, the exclusive spatial upper limit value may be different for lightweight applications and bulky applications. For example, the exclusive space upper limit includes an upper limit 1 (e.g., 384M) and an upper limit 2 (e.g., 512M). The upper limit value 1 is an exclusive space upper limit value for a lightweight application program. The upper limit value 2 is an exclusive space upper limit value for a large-volume application program. Of course, the developer may mark whether the application belongs to a lightweight application or a bulky application, so that after the application is installed, the electronic device may determine its corresponding exclusive upper limit value according to the type of the application (whether it belongs to a lightweight or bulky application).

In some examples, if the size of the real occupied memory space corresponding to the application a exceeds the corresponding upper limit value of the exclusive space, the electronic device may display a reminder to prompt the application a that there is an abnormal memory occupancy problem.

In addition, the space utilization is used for calculating the proportion of reserved memory space on the basis of the actual occupied memory space. In other words, space utilization may characterize the relationship between real-world memory space and reserved memory space. When calculating the reserved memory space according to the real occupied memory space, the electronic device needs to ensure that the real occupied memory space and the calculated reserved memory space meet the preset condition, and the preset condition is associated with the space utilization rate. Illustratively, the sum of the real occupied memory space and the calculated reserved memory space is referred to as a memory space 1, and when the ratio of the real occupied memory space to the memory space 1 is equal to the space utilization ratio, it is determined that the preset condition is satisfied. For example, in a scenario with a space utilization of 75%, if the size of the real memory space is 75M, the size of the reserved memory space may be calculated to be 25M, so that the real memory space and the calculated reserved memory space satisfy the preset condition.

Of course, in some embodiments, the calculated reserved memory space may be different from the reserved memory space actually allocated to the application by the electronic device. In the above embodiment, the GC related parameters may further include a maximum reservation limit, a minimum reservation limit. The maximum reservation limit indicates the maximum reserved memory space that can be allocated to an application. The minimum reservation limit indicates the minimum reserved memory space that can be allocated to an application. For example, when the maximum reserved limit value is 8M, if the calculated reserved memory space is greater than 8M according to the actual occupied memory space and the space utilization ratio, the size of the reserved memory space actually allocated is determined to be equal to 8M. For example, when the minimum reserved limit is 2M, if the calculated reserved memory space is smaller than 2M according to the actual occupied memory space and the space utilization, the size of the reserved memory space actually allocated is determined to be equal to 2M.

In summary, when the space utilization is 0.75, the maximum reservation limit is 8M, and the minimum reservation limit is 2M, the relationship between the reserved memory space and the real memory space may refer to fig. 3. As shown in fig. 3, after GC processing, if the real memory space is less than or equal to the first threshold, the reserved memory space is 2M. If the fruit occupied memory space is larger than or equal to the second threshold value, the reserved memory space is 8M. If the fruit occupies the memory space not less than the first threshold value and not greater than the second threshold value, the space between the actual occupied memory space and the reserved memory space satisfies the formula 1, that is,Wherein x represents the real memory space, y represents the reserved memory space, and delta represents the space utilization.

When the value of the real occupied memory space is the first threshold value, the value of the reserved memory space is fixed to be 2, and meanwhile, the space between the real occupied memory space and the reserved memory space is required to be in accordance with the formula 1. Thus, as shown in FIG. 3, when y is 2 and Δ is 0.75, the corresponding real memory space (i.e., the first threshold) is determined to beAnd (5) megabits.

Similarly, since the value of the reserved memory space is fixed to 8 when the value of the real memory space is the second threshold, and meanwhile, the space between the real memory space and the reserved memory space is required to conform to formula 1, as shown in fig. 3, when the value of y is 8 and the value of Δ is 0.75, the corresponding value of the real memory space (i.e. the second threshold) is determined to beAnd (5) megabits.

In addition, when the value of the real memory space is between the first threshold and the second threshold, for example, as shown in fig. 3, in the case that the real memory space is 10M, if equation 1 is to be satisfied between the reserved memory space and the real memory space, the reserved memory space isAnd (5) megabits.

Obviously, when the electronic device allocates an exclusive memory space (including a reserved memory space) to the application program, the size of the electronic device is affected by GC-related parameters. In addition, the above GC-related parameters also affect the validation of the GC watermark value of the application. In some embodiments, all applications in the electronic device share a set of GC-related parameters.

Obviously, for a heavy-load application program (such as a system service, a foreground running application program, etc.), the GC watermark value determined by the GC-related parameters is lower for the application program, which may cause the application program to perform GC frequently, cause occupation of resources to increase, and cause power consumption of the electronic device to increase.

By way of example, a heavily loaded application may refer to an application that satisfies one or more of the following characteristics:

1) The corresponding installation package volume is larger, for example, the corresponding installation package volume is larger than the set first volume threshold.

2) The newly added memory occupation amount in unit time is larger than the first memory threshold value.

3) The system resources (computing resources and/or memory resources) occupied by the runtime are greater than a first preset load threshold.

4) The memory access frequency exceeds the first frequency value during operation.

For light-load application programs (such as clock application or background application programs which are not commonly used), the GC waterline value determined by the GC related parameters is higher for the application programs, so that the application programs cannot trigger the GC for a long time, the memory space occupied by the application programs cannot be effectively recycled, and the resident memory is increased. In addition, GC performance of different third party applications is greatly different, and the phenomenon that GC efficiency of part of applications is low exists.

A lightly loaded application is understood to mean an application which satisfies one or more of the following characteristics:

1) The corresponding installation package volume is smaller, e.g., the corresponding installation package volume is less than a set second volume threshold, and the first volume threshold is greater than the second volume threshold.

2) The newly added memory occupation amount in unit time is smaller than a second memory threshold value, and the first memory threshold value is larger than the second memory threshold value.

3) The system resources occupied during operation are smaller than a second preset load threshold, and the first preset load threshold is larger than the second preset load threshold.

4) The memory access frequency is lower than the second frequency value during operation. The first frequency value is greater than the second frequency value.

The electronic device may perform active GC for the problem of excessive resident memory. The active GC may be that when the application program does not have GC for a long time (for example, when the time of not executing GC exceeds a specified duration), the electronic device actively performs GC on the application program. In addition to active GC, the electronic device may provide multiple GC modes, such as a sub-GC and a full GC.

In summary, the number of times the sub-GC and full GC are enabled by a heavy-duty application is greater and the number of active GCs is less with the same set of GC-related parameters. The number of active GCs enabled by lightly loaded applications is greater. In addition, active GC also causes an increase in system power consumption of the electronic device. The sub-GC and the full GC are GC algorithms selected when the memory space occupied by the application program exceeds the corresponding GC waterline value. Active GC is a GC algorithm that is selected in the event that an application is not being GC processed for too long.

In order to improve the above problems, an embodiment of the present application provides a method for recycling memory garbage, which is applied to electronic devices. According to the method, different GC waterline values can be configured for different types of application programs by matching different GC related parameters with different application programs, the GC waterline values configured in the mode are more specific, and compared with the unified GC waterline values set in the traditional scheme, the GC waterline values are flexibly set for different application programs, so that occupation of frequent GC on resources can be reduced, GC processing can be more specific, occupation of resources can be reduced, and power consumption can be reduced.

In addition, the electronic device can also configure the adapted GC waterline value for the application program by adopting different GC related parameters in different operation phases of the application program, so that GC processing is dynamically performed on the application program in the whole operation cycle of the application program. The flexible GC processing mode can more efficiently manage resources occupied by the application program.

For example, the electronic device may be a mobile phone, a tablet computer, a laptop, a handheld computer, a notebook, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), an augmented reality (augmented reality, AR), a Virtual Reality (VR) device, or the like, and the embodiment of the present application is not limited to the specific form of the electronic device.

Fig. 4 is a schematic structural diagram of an electronic device 100 according to an embodiment of the application.

As shown in fig. 4, the electronic device 100 may include: processor 110, external memory interface 120, internal memory 121, universal serial bus (universal serial bus, USB) interface 130, charge management module 140, power management module 141, battery 142, antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, headset interface 170D, sensor module 180, keys 190, motor 191, indicator 192, camera 193, display 194, and subscriber identity module (subscriber identification module, SIM) card interface 195, etc.

The sensor module 180 may include a pressure sensor, a gyroscope sensor, a barometric sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like.

It is to be understood that the structure illustrated in the present embodiment does not constitute a specific limitation on the electronic apparatus 100. In other embodiments, electronic device 100 may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (IMAGE SIGNAL processor, ISP), a controller, a memory, a video codec, a digital signal processor (DIGITAL SIGNAL processor, DSP), a baseband processor, and/or a neural Network Processor (NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller may be a neural hub and command center of the electronic device 100. The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it may be called directly from memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, the processor 110 may include one or more interfaces. The interfaces may include an integrated circuit (inter-INTEGRATED CIRCUIT, I2C) interface, an integrated circuit built-in audio (inter-INTEGRATED CIRCUIT SOUND, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others.

It should be understood that the connection relationship between the modules illustrated in this embodiment is only illustrative, and does not limit the structure of the electronic device 100. In other embodiments, the electronic device 100 may also employ different interfaces in the above embodiments, or a combination of interfaces.

The electronic device 100 implements display functions through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. The display panel may employ a Liquid Crystal Display (LCD) CRYSTAL DISPLAY, an organic light-emitting diode (OLED), an active-matrix organic LIGHT EMITTING diode (AMOLED), a flexible light-emitting diode (FLED), miniled, microLed, micro-oLed, a quantum dot LIGHT EMITTING diode (QLED), or the like.

The electronic device 100 may implement photographing functions through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

The ISP is used to process data fed back by the camera 193. For example, when photographing, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and is converted into an image visible to naked eyes. ISP can also optimize the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in the camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV, or the like format. In some embodiments, electronic device 100 may include N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to fourier transform the frequency bin energy, or the like.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in a variety of encoding formats, such as: dynamic picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The NPU is a neural-network (NN) computing processor, and can rapidly process input information by referencing a biological neural network structure, for example, referencing a transmission mode between human brain neurons, and can also continuously perform self-learning. Applications such as intelligent awareness of the electronic device 100 may be implemented through the NPU, for example: image recognition, face recognition, speech recognition, text understanding, etc.

Implementation details of the memory garbage recycling method provided by the embodiment of the application are described below with reference to the accompanying drawings.

In an embodiment of the present application, as shown in fig. 5, the method for recycling memory garbage includes:

S101, when the application 1 starts to run, the identifier 1 of the application 1 is acquired.

Wherein, the identifier 1 may uniquely indicate the application 1. The identifier 1 may be an application name corresponding to the application 1. Also, for example, the identifier 1 may also be a process name corresponding to the application 1, that is, a name of an application process created when the application 1 runs.

In some embodiments, identification 1 may be included in an application profile of application 1. Such as identity 1, is written in the application configuration file of application 1 by the developer of application 1. The application configuration file is a program file belonging to the application program 1, for example, may include an executable file dedicated to the application program 1. It will be appreciated that, when the electronic device creates the application process corresponding to the application program 1, the application configuration file corresponding to the application program 1 needs to be parsed. When the corresponding application configuration file is parsed, the electronic device may obtain the corresponding identifier 1.

S102, inquiring the GC related parameters 1 corresponding to the identification 1 when the identification 1 belongs to a pre-configuration list.

In some embodiments, an application set is included in the electronic device, which may indicate all applications that need to configure the specific GC-related parameters. In some embodiments, the application set may be a preconfigured list, a list of applications integrated within a system file, or a set of applications marked with specific marks. The preconfigured list and the application list may include an identifier of an application program and a specific GC related parameter corresponding to the application program. In addition, in the case that the application set is composed of application programs with specific marks, the program files of the application programs can carry corresponding proprietary GC-related parameters.

Of course, the embodiment of the present application is not limited to the existence form of the application set, and in the following embodiments, a preconfigured list is mainly described as an example.

In some embodiments, the application set may be configured by a system developer of the electronic device, and before the system developer does not add the newly published application program to the application set, for example, before writing the application identifier and the specific GC-related parameter of the newly published application program into the preconfigured list, the newly published application program does not belong to the application set, that is, when the electronic device runs, the specific GC-related parameter corresponding to the newly published application program cannot be obtained.

In addition, in some embodiments, other applications (such as a common application) besides the application program with light load and heavy load can obtain good GC effect by adopting unified GC-related parameters, and dedicated GC-related parameters can not be configured separately. That is, such common applications may not be included in the application set.

For example, an application may not be configured to an application set if the corresponding installation package volume size of the application is between the first volume threshold and the second volume threshold. It will be appreciated that when dividing the light-load application and the heavy-load application by the installation package volume, the installation package volume of the light-load application is smaller than the first volume threshold and the installation package volume of the heavy-load application is larger than the second volume threshold, and the installation package volume of the normal application which belongs neither to the light-load application nor to the heavy-load application is between the first volume threshold and the second volume threshold. Of course, the first and second volume thresholds described above may be empirical values based on a number of application statistics that have been defined as light-loaded or heavy-complex. For another example, if the memory occupation amount of the application newly added in a unit time is between the first memory threshold value and the second memory threshold value, the application may not be configured to the application set. It can be understood that when the newly-increased memory occupation amount in unit time is utilized to divide the light-load application program and the heavy-load application program, the newly-increased memory occupation amount in unit time corresponding to the light-load application program is smaller than the first memory threshold value, and the newly-increased memory occupation amount in unit time of the heavy-load application program is larger than the second memory threshold value, and the newly-increased memory occupation amount in unit time of the heavy-load application program is between the first memory threshold value and the second memory threshold value, and the newly-increased memory occupation amount in unit time of the heavy-load application program is not included in the light-load application program, but is not included in the common application program of the heavy-load application program. Of course, the first memory threshold and the second memory threshold may also be empirical values obtained after testing based on a large number of applications that have been defined as lightly loaded or heavily complex. For another example, if the frequency at which an application accesses memory space is based on between a first frequency value and a second frequency value, the application may not be placed in the application set. It can be understood that when the light load application program and the heavy load application program are divided by using the memory space access frequency, the memory space access frequency corresponding to the light load application program is smaller than the first frequency value, the memory space access frequency corresponding to the heavy load application program is larger than the second frequency value, and the memory space access frequency is between the first frequency value and the second frequency value, and the memory space access frequency is not included in the light load application program or the common application of the heavy load application program. Of course, the first frequency value and the second frequency value are empirical values obtained after testing from a large number of applications that have been defined as lightly loaded or heavily complex.

In addition, the application use frequency is not high, the average duration of single operation is shorter, or the application program with lower download amount can be not put into the application set. It will be appreciated that the manner in which whether the application usage frequency is high and whether the average usage time is short may refer to related techniques, such as by mining user usage records for each application program, obtaining a frequency threshold defining how high the application usage frequency is, and a duration threshold for evaluating how long the usage time is. As for the download amount threshold value for determining whether the download amount is low, the corresponding download threshold value may be obtained by clustering the download amounts of the respective application programs.

In summary, the application set includes an application program specified by a system developer, and may also include an application program that satisfies the first condition. The first condition may include a plurality of types of conditions, or may be preset. Illustratively, the above-described first condition (or referred to as a preset requirement) may be at least one of a condition for an application use frequency, a condition for an operation load, a condition for an installation package size, and the like. For example, the conditions for the application usage frequency may include the application program using a frequency greater than a frequency threshold 1 or less than a frequency threshold 2 for a specified period (e.g., one day), the frequency threshold 1 being greater than the frequency threshold 2. The condition for the operating load may include the number of accesses to the memory space per unit time exceeding the first frequency value or being lower than the second frequency value during the operation of the application. Conditions for the installation package size may include the installation package size of the application being greater than a first volume threshold or less than a second volume threshold, etc. In addition, if an application does not meet the first condition, the system developer is also entitled to add it to the application set.

In some embodiments, the preconfigured list is a form of existence of the application set in the electronic device, and the preconfigured list may be a parameter list parsed from the system configuration file 1, where the preconfigured list includes a plurality of application identifiers and GC-related parameters corresponding to each application identifier. The plurality of identifiers may indicate a plurality of applications, where the plurality of applications indicated by the plurality of identifiers are applications that need to configure specific GC-related parameters. In addition, the system configuration file 1 belongs to a system file to be analyzed in the starting process of the electronic equipment. Of course, in addition to the system configuration file 1, the system file to be parsed during startup also includes a system configuration file 2, and the system configuration file 2 carries default GC-related parameters that are commonly suitable for most applications.

Illustratively, as shown in FIG. 6, the above S102 may include S102-1 and S102-2:

s102-1, the electronic device may parse the system configuration file 1 to obtain a preconfigured list.

As shown in fig. 6, the pre-configuration list obtained by parsing includes: system service (system_server), sports health (health), camera (camera), etc., the above-mentioned identification "system_server" indicates a system service application, the above-mentioned identification "health" indicates a sports health application, and the above-mentioned identification "camera" indicates a camera application. That is, the system service application, the sports health application, and the camera application in the electronic device are all applications selected as the applications requiring configuration of the specific GC-related parameters.

In the above preconfigured list, the GC related parameter corresponding to the identifier "system_server" is [8M 32M 0.5], that is, the minimum reservation limit value in the GC related parameter is 8M, the maximum reservation limit value is 32M, and the space utilization is 0.5. The GC related parameter corresponding to the identifier "health" is [2M 8M 0.75], that is, the minimum reservation limit value in the GC related parameter is 2M, the maximum reservation limit value is 8M, and the space utilization is 0.75. The GC related parameter corresponding to the above-mentioned identifier "camera" is [2M 8M 0.8], that is, the minimum reservation limit value in the GC related parameter is 2M, the maximum reservation limit value is 8M, and the space utilization is 0.8.

S102-2, when the identifier 1 is the same as the identifier in the pre-configuration list, determining the GC-related parameter 1 according to the GC-related parameter corresponding to the identifier 1 in the pre-configuration list.

As shown in fig. 6, when the identifier 1 is a system service, the GC-related parameters corresponding to the identifier 1 in the preconfigured list include 8m 32m 0.5. Thus, it can be determined that the minimum reservation limit in the GC-related parameter 1 is 8M, the maximum reservation limit is 32M, and the space utilization is 0.5.

In addition, GC-related parameter 1 may also include an exclusive spatial upper limit. The upper limit value of the exclusive space corresponding to the GC-related parameter 1 may be the same as the upper limit value of the exclusive space in the GC-related parameter (e.g., referred to as GC-related parameter 2) default by the system. It can be understood that the GC-related parameter 2 is a general GC-related parameter applicable to all applications, and the GC-related parameter 2 includes a plurality of parameters including a minimum reserved limit, a maximum reserved limit, a space utilization, and an exclusive space upper limit. The electronic device may analyze the GC-related parameters 2 from the system configuration file 2 during the power-on phase. The GC-related parameter 2 described above does not belong to the preconfigured list.

The GC-related parameter 1 is a dedicated GC parameter suitable for the system service application. In addition, there is a difference between the GC-related parameters 1 and 2, for example, at least one of the corresponding minimum reservation limit, the corresponding maximum reservation limit, and the corresponding space utilization is different.

S103, according to the GC related parameters 1, exclusive memory space is allocated for the application program 1.

In some embodiments, the electronic device first determines the memory space actually occupied by the application process corresponding to the application program 1, that is, the real memory space corresponding to the application program 1. And then, determining the reserved memory space corresponding to the application program 1 according to the real occupied memory space, the space utilization rate in the GC related parameters 1 and the maximum reserved limit value. Thus, the memory space exclusively allocated to the application 1 can be determined based on the real memory space and the reserved memory space. At this time, the GC-related parameter 1 may be referred to as a GC-related parameter for the application 1, or as a GC-related parameter corresponding to the application 1.

For example, as shown in fig. 6, when the application process corresponding to the application program 1 occupies 50M, the calculated reserved memory space is 50M according to the space utilization. Under the limitation that the maximum reserved limit value is 32M, the actual reserved memory space can be determined to be 32M. Thus, the exclusive memory space allocated to application 1 includes 50M real memory space and 32M reserved memory space.

In some examples, the size of the memory space allocated to application 1 exclusive may be slightly greater than 82M, for example 83M. In other examples, the size of the exclusive memory space allocated to application 1 may be equal to 82M.

For another example, when the application process corresponding to the application program 1 already occupies 20M, the calculated reserved memory space is 20M according to the space utilization. It will be appreciated that 20M is less than the maximum reservation limit (32M) in GC-related parameter 1 and greater than the minimum reservation limit (8M) in GC-related parameter 1. The electronic device may determine that the reserved memory space allocated to application 1 is 20M. Thus, the memory space exclusively allocated by the electronic device to the application 1 includes the real memory space of 20M and the reserved memory space of 20M.

For another example, when the application process corresponding to the application program 1 occupies 6M, the calculated reserved memory space is 6M according to the space utilization. It will be appreciated that 6M is less than the minimum reservation limit in GC-related parameter 1. The electronic device may determine that the reserved memory space allocated to application 1 is equal to the minimum reservation limit described above (i.e., 8M). Thus, the memory space exclusively allocated by the electronic device to the application 1 includes 6M of real memory space and 8M of reserved memory space.

After determining the exclusive memory space allocated to the application program 1, determining the GC waterline value corresponding to the application program 1 according to the size of the exclusive memory space. Illustratively, the GC watermark value is equal to the size of the exclusive memory space allocated to application 1. For example, when the size of the exclusive memory space allocated to the application 1 is 82M, it is determined that the GC watermark value corresponding to the application 1 is 82M.

Thus, during the running of the application program 1, when the actually occupied memory space exceeds 82M, the electronic device may be triggered to GC the application program 1.

In the above embodiments, the electronic device may enable GC-related parameters specific to a particular application (e.g., application 1). The specific GC-related parameter may be an empirical value for the specific application. And determining the GC waterline value adapted to the specific application program through the special GC related parameters. The GC waterline value can avoid frequent triggering of the GC and can also avoid long-term failure to trigger the GC. In this way, the system energy consumption of the electronic equipment can be effectively reduced.

In some embodiments, the heavy-load application program and the light-load application program that are commonly used in the electronic device may be configured as specific application programs, and then GC-related parameters corresponding to the specific application programs are determined by means of testing or the like. Illustratively, the test mode may be: for each particular application, an attempt is made to enable different GC-related parameters and to record the energy consumption incurred during the running of that particular application. In this way, the GC-related parameter causing the lowest energy consumption can be selected as the dedicated GC-related parameter corresponding to the specific application.

After determining each specific application program and the corresponding dedicated GC related parameter, the identifier corresponding to each specific application program may be obtained, and according to each identifier and the dedicated GC related parameter, a system configuration file 1 corresponding to the pre-configuration list is generated, and the system configuration file 1 is stored in the electronic device. Thus, the preconfigured list may include the identifier corresponding to the heavy-load application program and the dedicated GC-related parameter, or may include the identifier corresponding to the light-load application program and the dedicated GC-related parameter.

In some possible embodiments, the same particular application may include multiple sets of dedicated GC-related parameters. The different sets of dedicated GC related parameters are applicable to scenes in which the application program is in different operation stages. That is, the electronic device may employ different GC-related parameters to configure GC waterline values for the application program according to its run-phase changes. Illustratively, the application described above has multiple sets of dedicated GC-related parameters. In some examples, the application is not only an application in the application set, but also an application whose GC number is greatly affected by the usage, such as SYSTEM SERVER, a social application (microblog ^TM, weChat ^TM, etc.), a video application, a shopping application, a short video application, a game application, a mail application, etc. It will be appreciated that the application program having multiple sets of GC-related parameters may include heavy-load applications or light-load applications, which are not limited in this embodiment of the present application.

In some embodiments, the electronic device may determine the operating phase of the application according to the activation time of the application, and activate GC-related parameters suitable for the operating phase for the application.

Taking the application b as an example, the dedicated GC-related parameters of the application b include GC-related parameters a1 and GC-related parameters a2. Wherein the GC-related parameter a1 is applicable to the start-up phase of the application b. The GC-related parameter a2 is applicable to the application b steady operation phase.

In this way, the electronic device may allocate an exclusive memory space for the application b and determine the corresponding GC watermark value by using the GC-related parameter a1 during the start-up phase of the application b. In addition, when the application b enters the stable operation stage, the electronic device may allocate an exclusive memory space for the application b by using the GC related parameter a1, and determine a corresponding GC waterline value.

As an example, the run-time of application b may be used to distinguish whether application b belongs to a startup phase or a steady run phase. For example, when the running time corresponding to the application b does not exceed the duration 1 (1 minute), it is determined that the application b is in the start-up phase. And when the corresponding running time exceeds the duration 1, determining that the application b is in a stable running stage. Thus, the preconfigured list may include the portions shown in table 1:

TABLE 1

That is, in the case that the running duration of the application b is less than 1 minute, the electronic device may determine, through the preconfigured list, that the GC-related parameter a1 is a matched parameter, and may allocate an exclusive memory space for the application b by using the GC-related parameter a1, and determine a corresponding GC waterline value. Under the condition that the running time of the application b is not less than 1 minute, the electronic device can determine that the GC related parameter a2 is a matched parameter through the pre-configuration list, and can allocate exclusive memory space for the application b by utilizing the GC related parameter a2 and determine a corresponding GC waterline value.

In other embodiments, the electronic device may further determine GC-related parameters adapted to the application program according to real-time occupancy of system resources.

The system resources may be computing resources, such as central processing unit (central processing unit, CPU) resources, for example. It can be appreciated that when the application is in different operation phases, the corresponding CPU resource occupancy rates are also different. Thus, an application program with multiple sets of dedicated GC-related parameters may correspond to multiple CPU occupancy intervals, each of which corresponds to a set of dedicated GC-related parameters. For example, application c is an application program with multiple sets of dedicated GC-related parameters, and the preconfigured list may further include the following portions shown in table 2:

TABLE 2

The CPU occupancy rate interval 1, the CPU occupancy rate interval 2, and the CPU occupancy rate interval 3 are continuous and non-overlapping CPU occupancy rate intervals, and GC-related parameters corresponding to different CPU occupancy rate intervals are different, for example, the CPU occupancy rate interval 1 corresponds to GC-related parameter b1, the CPU occupancy rate interval 2 corresponds to GC-related parameter b2, and the CPU occupancy rate interval 3 corresponds to GC-related parameter b3.

Thus, when the application c runs, the electronic equipment can determine the belonging CPU occupancy rate interval according to the occupancy rate of the current CPU resource. And then, determining corresponding exclusive GC related parameters according to the belonging CPU occupancy rate interval. Also illustratively, the system resource described above may also be a storage resource. Similar to the occupation condition of CPU resources, when the application program is in different operation stages, the corresponding memory occupation amount is different. The memory occupation amount may be an average value of the memory space actually occupied by the application in a specified time period, where the specified time period is a time period before GC processing, and the length of the specified time period may be a preconfigured fixed value. In other examples, the memory occupation amount may be the amount of memory occupied by the application after GC processing is performed.

Thus, an application program with multiple sets of dedicated GC-related parameters may also correspond to multiple memory size intervals, where each memory size interval corresponds to a set of dedicated GC-related parameters.

In addition, the CPU resource occupancy rate mentioned in the foregoing embodiment may be the CPU resource occupancy rate of the whole machine, or may be the CPU resource occupancy rate of a single application program. Likewise, the memory occupation amount may be the memory occupation amount of the whole machine, or the memory occupation amount of a single application.

In some embodiments, a system level program (e.g., SYSTEM SERVER) may employ the CPU resource occupancy of the complete machine, evaluate the operational phase at SYSTEM SERVER (i.e., determine the CPU occupancy interval to which it belongs), and then determine the matching proprietary GC-related parameters. Of course, the memory usage of the complete machine may also be used, the operation stage at which SYSTEM SERVER is located (i.e., determining the size of the memory to which it belongs) is evaluated, and then the matched dedicated GC-related parameters are determined.

Taking SYSTEM SERVER as an example, the electronic device determines SYSTEM SERVER the operation stage according to the CPU resource occupation condition of the whole machine, and determines implementation details of the GC related parameters adapted to the current operation stage.

As shown in fig. 7, after SYSTEM SERVER is normally operated, the above method may include the steps of:

s1, under the condition that the electronic equipment starts CPU resource polling, the current CPU occupation condition of the electronic equipment can be periodically inquired.

In some embodiments, the electronic device may acquire a CPU resource occupancy rate indicating a current CPU occupancy during each polling period. The CPU resource occupancy rate may be a CPU resource occupancy rate of the whole machine.

As one implementation, the electronic device may obtain information of all CPU activities, such as CPU time, by accessing a stat folder in the proc file system. Then, according to the obtained CPU time, the corresponding CPU resource occupancy rate is calculated, and the specific calculation process may refer to the related technology, which is not described herein.

Taking the polling period as 1 hour as an example, the electronic device can collect multiple CPU resource occupancy rates within 1 hour, and then, taking an average value among the multiple CPU resource occupancy rates as the CPU resource occupancy rate corresponding to the current polling period for indicating the current CPU occupancy condition of the electronic device.

Taking a polling period of 1 hour as an example, the electronic device can also acquire the CPU resource occupancy rate once every 1 hour as the CPU resource occupancy rate corresponding to the current polling period, so as to indicate the current CPU occupancy condition of the electronic device.

In some embodiments, the CPU resource polling function in the electronic device may be placed in an on state or an off state. Thus, before S1, i.e., after SYSTEM SERVER is normally operated, the electronic device may query whether the CPU resource polling function is turned on, and if the function is turned on, it is no longer detected whether the CPU resource polling function is turned on, and at the same time, the flow may proceed to S1. If the function is not on, the CPU resource polling function is set to an on state, and the flow then proceeds to S1.

S2, judging whether the GC-related parameters corresponding to SYSTEM SERVER need to be changed according to the occupancy rate of the CPU resources corresponding to the current polling period.

In some embodiments, the electronic device may determine whether the GC-related parameters corresponding to SYSTEM SERVER need to be changed by querying the preconfigured list.

Illustratively, when the preconfigured list does not contain SYSTEM SERVER corresponding identifiers, or only one set of GC-related parameters for SYSTEM SERVER is contained in the preconfigured list, it is determined that the GC-related parameters corresponding to SYSTEM SERVER need not be changed.

Also, for example, when the preconfigured list includes a plurality of sets of GC-related parameters for SYSTEM SERVER and each set of GC-related parameters corresponds to one CPU occupancy interval, if the CPU resource occupancy corresponding to the current polling period and the CPU resource occupancy corresponding to the previous polling period belong to the same CPU occupancy interval, it is determined that the GC-related parameters of SYSTEM SERVER do not need to be changed. If the CPU resource occupancy rate corresponding to the current polling period and the CPU resource occupancy rate corresponding to the previous polling period do not belong to the same CPU occupancy rate interval, determining that the GC-related parameters of SYSTEM SERVER need to be changed. If the CPU resource occupancy corresponding to the last polling period is 0, then it is also determined that the GC-related parameters of SYSTEM SERVER need to be changed. If the CPU resource occupancy corresponding to the current polling period is less than 0, then it is determined that the GC-related parameters of SYSTEM SERVER need not be changed.

If the GC-related parameters corresponding to SYSTEM SERVER need to be changed, the flow proceeds to step S3.

And S3, determining GC related parameters matched with the current operation stage SYSTEM SERVER and configuring.

In some embodiments, matching GC-related parameters may be queried in the electronic device through a preconfigured list. For example, determining the belonging CPU occupancy rate interval according to the CPU resource occupancy rate corresponding to the current polling period, and then, in the pre-configuration list, querying the GC-related parameter corresponding to the belonging CPU occupancy rate interval as the matched GC-related parameter.

In addition, in the embodiment of the present application, a function, such as a function SETHEAPARGS, that triggers the change of the GC-related parameters of the application is configured in the electronic device. That is, the electronic device may trigger the change of the GC-related parameters of the application through SETHEAPARGS.

For example, after S3 determines GC-related parameters matching SYSTEM SERVER, the electronic device may call function SETHEAPARGS, passing the matched GC-related parameters to runtime (runtime) corresponding to SYSTEM SERVER. runtime may evaluate whether the matched GC-related parameter is reasonable, for example, based on the GC-related parameter, the determined reserved memory space is larger than the maximum reserved space, or based on the GC-related parameter, if the exclusive memory space allocated for SYSTEM SERVER is larger than the upper limit value of the exclusive memory, the GC-related parameter is determined to be unreasonable. Of course, if the GC-related parameters are determined to be reasonable, runtime corresponding to SYSTEM SERVER transfers the GC-related parameters to a memory management model (heap) through the virtual machine, for example, instructs the virtual machine to call CHECKANDSETHEAPARGS, and sends the matched and reasonable GC-related parameters to the memory management model, so that the GC-related parameters corresponding to SYSTEM SERVER can be changed.

Taking fig. 8 as an example, the polling period 1 and the polling period 2 are two adjacent polling periods, and after the polling period 1 determines the matched GC-related parameters, the GC-related parameters corresponding to SYSTEM SERVER may be dynamically adjusted. After the GC-related parameters are adjusted, in the triggered scenario of GC processing for SYSTEM SERVER, the GC waterline value is configured for SYSTEM SERVER by adopting the adjusted GC-related parameters. For example, two sets of GC-related parameters corresponding to SYSTEM SERVER may be determined from the preconfigured list: [8M 32M 0.5] and [8M 24M 0.75] correspond to the CPU occupancy zone a and [8M 24M 0.75] correspond to the CPU occupancy zone b in the preconfigured list. In the polling period 1, if the detected CPU resource occupancy belongs to the CPU occupancy interval a, the GC-related parameter corresponding to SYSTEM SERVER is determined as [8m 32m 0.5]. Thus, if SYSTEM SERVER is GC-processed, the real memory space is 50M, and the reserved memory space to be allocated is also 50M according to the real memory space (50M) and the space utilization (0.5), but the 50M is greater than the maximum reserved limit value (32M) in the GC-related parameters, so that the reserved memory space actually allocated to SYSTEM SERVER can be determined to be 32M.

After the polling period 2 determines the matching GC-related parameters, the corresponding GC-related parameters may be dynamically adjusted SYSTEM SERVER. After the GC-related parameters are adjusted, in the triggered scenario of GC processing for SYSTEM SERVER, the GC waterline value is configured for SYSTEM SERVER by adopting the adjusted GC-related parameters. For example, in the polling period 2, if the detected CPU resource occupancy belongs to the CPU occupancy interval b, it is determined that the GC-related parameter corresponding to SYSTEM SERVER needs to be changed, specifically to [8m 24m 0.75]. Thus, the electronic device may call function SETHEAPARGS, pass [8M 24M 0.75] to runtime (runtime) corresponding to SYSTEM SERVER, triggering change SYSTEM SERVER of the corresponding GC-related parameters. Thus, the electronic device may need to allocate reserved memory space for SYSTEM SERVER in accordance with [8M 24M 0.75]. For example, the reserved memory space to be allocated is also determined to be 25M according to the real memory space (75M) and the space utilization (0.75), but 25M is greater than the maximum reserved limit value (24M) in the GC related parameters, so that the reserved memory space actually allocated to SYSTEM SERVER can be determined to be 24M.

It should be noted that, in the above embodiment, the association between the GC-related parameters of each application program and the CPU occupancy rate interval may be obtained quickly through the pre-configuration list. And the association between each set of GC-related parameters recorded in the pre-configuration list and the CPU occupancy interval needs to be obtained through a large number of tests. That is, after determining an application program that needs to configure multiple sets of dedicated GC-related parameters in the process of creating the pre-configuration list, multiple CPU occupancy intervals may be divided in advance for the application program, and then GC-related parameters corresponding to different CPU occupancy intervals are determined through testing.

Taking SYSTEM SERVER corresponding to the CPU occupancy rate interval a as an example, determining the GC-related parameters corresponding to the CPU occupancy rate interval a. When SYSTEM SERVER starts running, adopting an initial exclusive GC related parameter of [8M 32M 0.5], and recording the times of performing GC in SYSTEM SERVER within a running set time under the condition that the CPU resource occupancy rate of the whole machine belongs to the CPU occupancy rate interval a.

If the number of GCs performed by SYSTEM SERVER exceeds the preset number of times 1, the number of GCs performed by other GC related parameters is tested in the same CPU occupation condition and the same operation duration, so that it can be determined that the number of GCs can be reduced to a GC related parameter c which is not more than the preset number of times 1 and not less than the preset number of times 2, and then the GC related parameter c is associated with the CPU occupancy zone a, where the GC related parameter c is compared with the exclusive GC related parameter of [8m 32m 0.5], in the same scene, a higher GC waterline value can be allocated to SYSTEM SERVER, and the GC number for SYSTEM SERVER is reduced.

If SYSTEM SERVER GC times are lower than the preset times 2, testing the GC times by adopting other GC related parameters in the same CPU occupation condition and the same operation time, thus determining the GC related parameter d which can increase the GC times to not more than the preset times 1 and not less than the preset times 2, and then associating the GC related parameter d with the CPU occupation rate interval a. In this case, compared with the specific GC-related parameter of [8m 32m 0.5], the GC-related parameter d can be assigned a lower GC waterline value to SYSTEM SERVER in the same scenario, so that the GC can not be obtained for a long time in SYSTEM SERVER.

If SYSTEM SERVER GC times are not less than the preset times 2 and not more than the preset times 1, it is determined that the CPU occupancy interval a is associated with the dedicated GC-related parameter 8m 32m 0.5.

In other possible embodiments, a mapping function between different CPU resource occupancy rates and different GC-related parameters may also be established. Thus, the electronic device can query the GC related parameters matched with the CPU resource occupancy rate through the mapping function according to the CPU resource occupancy rate obtained in each polling period.

In some embodiments, the electronic device may select a portion of the applications to have the authority to dynamically adjust the GC-related parameters, e.g., SYSTEM SERVER above has the authority to dynamically adjust the GC-related parameters. Thus, after the application is started, the electronic device can detect whether the application has authority to dynamically adjust GC-related parameters. If so, judging whether the GC related parameters corresponding to the application program need to be adjusted according to the corresponding CPU occupation condition in each polling period. After determining that the GC-related parameters corresponding to the application program need to be changed, acquiring the GC-related parameters adapted to the current running stage of the electronic equipment, and configuring the GC-related parameters. Under the condition of successful configuration, the electronic equipment can set a GC waterline value for the application program by utilizing the newly determined GC related parameters. And under the condition of configuration failure, waiting for entering the next polling period, continuously acquiring the CPU occupation condition, and judging whether the GC related parameters corresponding to the application program need to be changed again.

In other embodiments, the electronic device may determine SYSTEM SERVER the operation phase through the memory occupation of the complete machine. In this way, the electronic device may further determine whether to dynamically adjust the GC-related parameters corresponding to SYSTEM SERVER according to the change of the memory occupancy of the complete machine, that is, whether to change the corresponding GC-related parameters during SYSTEM SERVER operation. Implementation details of dynamically adjusting GC-related parameters by using memory occupation conditions can refer to dynamically adjusting GC-related parameters by using overall CPU occupation conditions, and are not described herein, and the general procedure thereof may be: after the memory occupation amount of the whole machine corresponding to the current polling period is obtained, a memory size interval, such as a memory size interval a, of the whole machine, to which the memory occupation amount belongs, is queried through a pre-configuration list, and then GC related parameters corresponding to the memory size interval a in the pre-configuration list are used as matched GC related parameters.

In this way, the electronic device may determine SYSTEM SERVER that the electronic device is in different operation phases under different memory occupancy conditions of the whole device, and at this time, GC-related parameters used by the electronic device for SYSTEM SERVER may be different. It will be appreciated that when allocating the exclusive memory space to SYSTEM SERVER using different GC-related parameters, the configured GC waterline values may be different even though the size of the memory actually occupied by SYSTEM SERVER is the same.

Of course, SYSTEM SERVER carries system service, and the system resource occupation condition of the whole electronic device can indicate the busyness of SYSTEM SERVER, for example, when SYSTEM SERVER is busy, the system resource occupation of the whole electronic device is more, for example, the occupation rate of the CPU resource of the whole electronic device is higher or the occupation rate of the storage resource of the whole electronic device is higher, in this scenario, the memory space required by SYSTEM SERVER running is larger, that is, the GC waterline value required to be configured is higher. SYSTEM SERVER is relatively idle, the whole system resources occupy less, and in this scenario, the memory space required for SYSTEM SERVER operation is relatively small, that is, the GC waterline value required to be configured is low.

In some embodiments, the electronic device may further determine, according to a system resource occupation of an application, an operation stage where the application is located, and determine whether to change GC-related parameters corresponding to the application. It can be understood that the third party application program and part of the system applications are adapted to determine the operation stage of the application program according to the system resource occupation situation of the application program, and determine whether to change the GC related parameters corresponding to the application program, and of course, the implementation principle is similar to the complete machine scheme (e.g. the scheme for dynamically adjusting the GC related parameters based on the system resource occupation situation of the complete machine), and the difference between the two is that: 1. collected in the polling period is the CPU resource occupancy rate corresponding to the application program (or the memory occupancy rate corresponding to the application program), but not the CPU resource occupancy rate of the whole machine. 2. The CPU occupancy rate interval (or memory size interval) used for distinguishing the operation stage is different from the value of the CPU occupancy rate interval in the whole machine scheme. For specific implementation details, reference may be made to the complete machine scheme.

For example, in the pre-configuration list, the microblog ^TM may correspond to a plurality of CPU occupancy rate intervals, where the CPU occupancy rate interval corresponding to the microblog ^TM includes a CPU occupancy rate interval b, and the CPU occupancy rate interval b corresponds to the GC-related parameter e for the microblog ^TM. Of course, microblog ^TM also corresponds to other CPU occupancy intervals, as well as other GC-related parameters for microblog ^TM. In this way, when the current polling period detects that the CPU resource occupancy rate corresponding to the microblog ^TM belongs to the CPU occupancy rate interval b, and the previous polling period detects that the CPU resource occupancy rate corresponding to the microblog ^TM does not belong to the CPU occupancy rate interval b, the electronic device may change and adopt the GC related parameter e to determine the GC waterline value for the microblog ^TM. For specific implementation details, reference may be made to the process of changing the GC-related parameters for SYSTEM SERVER according to the overall CPU occupation in the foregoing embodiment, which is not described herein.

For example, in the pre-configured list, the panning ^TM may correspond to a plurality of memory size intervals, and the memory size interval corresponding to the panning ^TM includes a memory size interval b, where the memory size interval b corresponds to the GC related parameter f for the panning ^TM. Of course, the panning ^TM also corresponds to other memory size intervals, as well as other GC-related parameters for panning ^TM. Thus, when the current polling period detects that the real memory space corresponding to the paner ^TM belongs to the memory size interval b and the previous polling period detects that the real memory space corresponding to the paner ^TM does not belong to the memory size interval b, the electronic device may change and adopt the GC related parameter f to determine the GC waterline value for the paner ^TM. For specific implementation details, reference may be made to the process of changing the GC-related parameters for SYSTEM SERVER according to the overall CPU occupation in the foregoing embodiment, which is not described herein.

In some embodiments, the electronic device may further determine, according to the GC number of the application, a running stage in which the application is located, and determine whether to change the GC-related parameters corresponding to the application. As an example, in the preconfigured list, each application may correspond to a plurality of time intervals, each time interval corresponding to a set of GC-related parameters. For example, taking application c as an example, application c corresponds to a plurality of time intervals, and each time interval corresponds to a set of GC-related parameters, then the preconfigured list includes the portions shown in table 3:

TABLE 3 Table 3

The number of times interval 1, the number of times interval 2 and the number of times interval 3 are three continuous times intervals without overlapping, the number of times interval corresponding to the application c can be pre-designated, the number of times interval 1 corresponds to the GC related parameter y1, the number of times interval 2 corresponds to the GC related parameter y2, and the number of times interval 3 corresponds to the GC related parameter y 3.

In this way, the electronic device may count GC times of the application program in each polling period, and then determine GC-related parameters currently matched with the application program through a frequency interval to which the GC times belong in the current polling period. For example, the Taobao ^TM corresponds to a plurality of time intervals, wherein the time interval a corresponds to the GC-related parameter g. When the number of times for the panzer ^TM GC in the current polling period does not belong to the number of times interval a, and the number of times for the panzer ^TM GC in the previous polling period does not belong to the number of times interval a, the GC waterline value is configured for the panzer ^TM by changing the GC related parameter g.

In other possible embodiments, before the electronic device allocates the exclusive memory space for the application program each time, the GC count corresponding to the application program in the set period of time before GC processing is counted, and then the GC-related parameter currently matched with the application program is determined in the frequency interval to which the GC count belongs.

In summary, in addition to the above-described determination of whether to change the GC-related parameter corresponding to the application program by using the CPU occupation condition of the whole machine, the memory occupation condition of the whole machine, the CPU occupation condition corresponding to the application program, the memory occupation condition corresponding to the application program, or the GC number of the application program, the determination conditions such as the device temperature, the size of the idle memory of the whole machine (i.e., the unallocated memory space in the electronic device), the status of the on-off screen of the device, and the like may also be used to determine whether to change the GC-related parameter corresponding to the application program.

Illustratively, different equipment temperature intervals correspond to different GC-related parameters. Illustratively, different idle memory sizes of the whole machine correspond to different GC-related parameters. Illustratively, the GC-related parameters corresponding to the on-screen state of the device are different from the GC-related parameters corresponding to the off-screen state of the device.

In addition, under the condition that the application program has the authority of dynamically adjusting the GC-related parameters and is running, in each polling period, the electronic device can judge whether to change the GC-related parameters for the application program according to any one judgment condition (for example, the occupation condition of the CPU of the whole machine, the occupation condition of the memory of the whole machine, the occupation condition of the CPU corresponding to the application program, the occupation condition of the memory corresponding to the application program, the GC number of times of the application program, the equipment temperature, the on-off state, the idle memory size of the whole machine, and the like), that is, in the running process of the application program, judge whether to adopt different GC-related parameters for configuring the GC waterline value. Of course, in other possible embodiments, the electronic device may also combine multiple determination conditions to comprehensively determine whether to change the GC-related parameters for the application. That is, the GC-related parameters corresponding to different combinations of judgment conditions may be preconfigured in the preconfigured list for a specific application, so that, in the running process of the application, after any one of the combinations of judgment conditions is detected to be satisfied, the GC-related parameters of the application may be changed.

The above embodiments describe the process of dynamically adjusting GC-related parameters used during the running of an application when the application set is in the form of a preconfigured list. When the application set is an application list, the process of dynamically adjusting the GC-related parameters used in the running process of the application program is the same as that of the preconfigured list, and will not be described herein. In addition, when the application set refers to an application program with a specific identifier, the specific GC-related parameters corresponding to each application program may be integrated into the program file of the application program. When the application program corresponds to multiple sets of dedicated GC related parameters, the program file includes usage conditions of different dedicated GC related parameters, for example, the current CPU resource occupancy belongs to a specified CPU occupancy interval, for example, the current memory occupancy belongs to a specified memory size interval, for example, the current GC number belongs to a specified number of times interval.

In some scenarios, a first type of application and a second type of application are installed in an electronic device. The first type of application and the second type of application are both located in a preset application set, but the first type of application and the second type of application are different. Illustratively, the difference between the first type of application and the second type of application may be at least one of:

(1) The first type of application may be a heavy-duty application and the second type of application may be a light-duty application.

(2) The size of the installation package of the first type of application is larger than that of the installation package of the second type of application.

(3) During operation, the newly-increased memory occupation amount in the unit time of the first type application is larger than the newly-increased memory occupation amount in the unit time of the second type application.

(4) The running load (the amount of occupied system resources) of the first type of application is larger than the running load of the second type of application.

(5) During operation, the memory access frequency of the first type of application in unit time is higher than the memory access frequency of the second type of application in unit time.

For example, the first type of application may require a social application, a video application, a game application, etc. that runs in the long-term foreground, and the second type of application may be a system-provided clock application, a memo application, a weather application, etc.

In addition, the plurality of identifiers included in the pre-configuration list may also be referred to as a plurality of application identifiers. The plurality of application identifiers comprise a first identifier for indicating the first type of application and a second identifier for indicating the second type of application.

Taking the example that the first type of application includes microblog ^TM, the electronic device receives a first operation of the user for microblog ^TM, where the first operation may indicate that microblog ^TM is executed, for example, an operation of clicking an application icon of microblog ^TM. Then, the electronic device initiates the microblog ^TM in response to the first operation. Thus, microblog ^TM also enters the run state.

During the operation of microblog ^TM, the electronic device may perform GC multiple times for microblog ^TM. After the microblog ^TM is subjected to the t-th garbage collection treatment, if the memory space occupied by the microblog ^TM is a memory value 1, the electronic device sets a preset threshold 1 (i.e. a GC watermark value) for the microblog ^TM according to the memory value 1. Thus, after the memory size occupied by the microblog ^TM reaches the preset threshold 1 from the memory value 1, the (t+1) th time of garbage collection processing for the microblog ^TM is triggered.

Likewise, during the running of a calendar application, the electronic device may perform multiple GCs for the calendar application. After the calendar application is subjected to the g-th garbage collection treatment, if the size of the memory space occupied by the calendar application is also the memory value 1, the electronic device sets a preset threshold 2 (i.e., GC waterline value) for the calendar application according to the memory value 1. Thus, after the memory size occupied by the calendar application reaches the preset threshold 2 from the memory value 1, the (g+1) th garbage collection processing for the calendar application is triggered.

However, since the microblogs ^TM and the calendar application are both located in the application set, the respective dedicated GC-related parameters are corresponding, and even if the memory space actually occupied by the microblogs ^TM and the calendar application GC is the same, the GC waterline values allocated to them are different. In addition, because of the aforementioned differences between microblog ^TM and the calendar application, the GC watermark value of microblog ^TM may be greater than the GC watermark value of the calendar application.

That is, in the case that the first type of application is a heavy load application and the second type of application is a light load application, compared with the case that the same GC related parameters are used to configure a unified GC waterline value, in the embodiment of the present application, a higher GC waterline value is configured for the first type of application, so that frequent triggering of GC by the first type of application can be avoided. The second-class application is also configured with lower GC parameters, so that the situation that the second-class application cannot GC in a scene during running is avoided, the occupied memory space of the second-class application cannot be effectively recovered, and the excessive resident memory in the system is caused.

In addition, in the previous example, after each GC of the microblog ^TM, if the size of the occupied memory space is different, the GC waterline value configured by the electronic device is also different. That is, after the microblog ^TM is subjected to the t+1st garbage recycling treatment in the operation process, the memory space occupied by the microblog ^TM is a memory value 3. When the memory size occupied by the microblog ^TM reaches a preset threshold value 4 (GC waterline value) from the memory value 3, carrying out t+2th garbage recycling treatment on the microblog ^TM. Wherein the memory value 1 is different from the memory value 3, and the preset threshold value 4 is different from the preset threshold value 1.

In the previous example, after each GC of the calendar application, if the size of the occupied memory space is different, the GC waterline value configured by the electronic device is also different. That is, after the calendar application is subjected to the g+1th garbage recycling treatment in the running process, the size of the memory space occupied by the calendar application is the memory value 4. When the memory size occupied by the calendar application reaches a preset threshold value 5 (GC waterline value) from a memory value 4, the (t+2) th garbage collection treatment is carried out on the calendar application. Wherein the memory value 1 is different from the memory value 4, and the preset threshold 5 is different from the preset threshold 2.

In addition, t and g are positive integers greater than 0, and may be the same or different, which is not limited in the embodiment of the present application.

In some embodiments, the application set includes a first application and a third application, where each of the first application and the third application corresponds to at least two sets of dedicated GC-related parameters. The first application and the third application may be SYSTEM SERVER, social applications (microblog ^TM, weChat ^TM, etc.), instant messaging applications, video applications, shopping applications, short video applications, live broadcast applications, conference applications, game applications, memo applications, mail applications, etc. the GC number of which is greatly affected by the use condition. In addition, the first application and the third application may be light-load applications or heavy-load applications, which are not particularly limited in the embodiment of the present application.

In some embodiments, the electronic device may receive and respond to a first operation of the user on the first application, launch and run the first application.

In the running process of the first application, the memory space occupied by the first application in the electronic device is changed, and multiple garbage recycling processes (i.e., GC) are triggered, for example, the first application is subjected to the ith GC process and the jth GC process in the running process, where i and j are both positive integers, which may be the same or different. After the electronic equipment performs the ith GC processing on the first application, the size of the memory space occupied by the first application is a first memory value, that is, when the ith GC processing is completed, the size of the real occupied memory space of the first application is the first memory value; after the electronic device performs the jth GC processing on the first application, the size of the memory space occupied by the first application is also the first memory value, that is, when the jth GC processing is completed, the size of the real memory space occupied by the first application is also the first memory value.

In addition, when the memory size occupied by the first application reaches a first preset threshold value from the first memory value, triggering the (i+1) th GC for the first application. And when the memory size occupied by the first application reaches a second preset threshold value from the first memory value, performing the j+1th GC on the first application.

Under the first preset condition, the GC-related parameters adopted for the first application may be different, that is, after the first application performs GC twice, even if the real memory space is the same, the configured first preset threshold is different from the second preset threshold. Wherein the first preset condition comprises a combination of one or more of the following:

(1) The CPU occupancy rate corresponding to the electronic device at the ith GC is different from the CPU occupancy rate corresponding to the electronic device at the jth GC.

In some embodiments, the CPU occupancy rate corresponding to the electronic device at the ith GC includes any one of the following:

first, the CPU occupancy rate occupied by the first application when the ith GC is completed.

Secondly, the CPU occupancy rate occupied by the whole electronic equipment when the ith GC is completed.

Thirdly, the average CPU occupancy rate of the whole machine in a third time period, wherein the third time period is a time period before the ith GC is completed.

The third period may be, for example, a polling period corresponding to an i-th GC completion time point. It can be appreciated that, after the first application is started, the electronic device performs collection of device performance information once every designated time interval, for example, collection of CPU resource occupancy rate (occupancy rate corresponding to the whole device or occupancy rate corresponding to the first application), memory resource occupancy rate (occupancy rate corresponding to the whole device or occupancy rate corresponding to the first application), GC number, device temperature, idle memory space of the whole device, on-off screen state, and the like, and the time interval for obtaining device performance information twice is a polling period.

In some embodiments, the process of determining whether to replace the GC-related parameters of the first application according to the obtained device performance information is performed asynchronously with the process of the electronic device determining whether to GC for the first application every polling period. That is, as shown in fig. 9A, the polling period b is a polling period adjacent to the previous polling period a, and when the time point of completing the current garbage disposal coincides with the time period corresponding to the polling period a, the GC-related parameter used in the current garbage collection process is affected by the detection result of the polling period b, for example, it is determined that the first application and the first GC-related parameter are matched according to the device performance information collected in the polling period b, and then, during the current garbage collection process, the GC waterline value is configured for the first application by using the first GC-related parameter. That is, the polling period b may be referred to as a polling period corresponding to the point in time of the present garbage disposal.

Also, as an example, the third period may be a period in which the time point at which the garbage treatment is completed is taken as the time end point and the time length is fixed. For example, as shown in fig. 9B, when the time point at which the garbage disposal is completed is T1 and the time length is preconfigured as T, the third time period is a time period between T2 and T1. In the following embodiments, the period of time (e.g., the first period of time, the second period of time, the fourth period of time, the fifth period of time, the sixth period of time, etc.) before the GC processing is completed is the same as the third period of time, and will not be described in detail.

Fourth, the average CPU occupancy rate of the first application in the third time period.

In some embodiments, the CPU occupancy rate corresponding to the electronic device at the jth GC includes any one of the following:

First, the CPU occupancy occupied by the first application when the jth GC is completed.

Secondly, the CPU occupancy rate occupied by the whole electronic equipment when the jth GC is completed.

And thirdly, the average CPU occupancy rate of the whole machine in a fourth time period, wherein the fourth time period is a time period before the jth GC is completed, and the time length of the third time period is the same as that of the fourth time period.

Fourth, the average CPU occupancy rate of the first application in the fourth time period. The fourth time period may be, for example, a polling period corresponding to the jth GC completion time point.

(2) The number of GCs of the first application in the first period is different from the number of GCs in the second period, wherein the first period is a period before the completion of the ith GC, the second period is a period before the completion of the jth GC, and the first period and the second period have the same time length. For example, the first period may be a polling period corresponding to a time point when the ith GC is completed, and the second period may be a polling period corresponding to a time point when the jth GC is completed.

(3) The device temperature of the electronic device at the ith GC is not the same as the device temperature at the jth GC. For example, the device temperature of the electronic device when the ith GC for the first application is completed is different from the device temperature of the electronic device when the jth GC for the first application is completed.

(4) The size of the complete machine idle memory corresponding to the electronic equipment in the ith GC is different from the size of the complete machine idle memory corresponding to the electronic equipment in the jth GC. For example, the size of the complete machine idle memory corresponding to the electronic device when the ith GC is completed is different from the size of the complete machine idle memory corresponding to the electronic device when the jth GC is completed.

(5) The on-off state of the electronic device corresponding to the ith GC is different from the on-off state of the electronic device corresponding to the jth GC. For example, the on-off state of the electronic device at the completion of the ith GC is different from the corresponding on-off state at the completion of the jth GC.

The ith GC and the jth GC mentioned above are both GCs indicating the first application. In addition, the first preset condition formed by the above one or more items may indicate various scenes in which GC-related parameters corresponding to the application program need to be adjusted. Of course, in the case that the GC-related parameters do not belong to the above scenario, the GC-related parameters corresponding to the first application may not be changed. For example, under the second preset condition, the GC related parameters corresponding to the first application may not be adjusted, that is, after two GCs for the first application, if the real occupied memory is idle, the configured GC waterline values are the same, that is, the first preset threshold is the same as the second preset threshold.

Wherein the second preset condition includes all of the following:

the CPU occupancy rate corresponding to the electronic equipment in the ith GC is the same as the CPU occupancy rate corresponding to the electronic equipment in the jth GC.

The first application has the same number of GCs in the first period as in the second period.

The device temperature corresponding to the electronic device at the ith GC is the same as the device temperature corresponding to the electronic device at the jth GC.

The size of the complete machine idle memory corresponding to the electronic equipment in the ith GC is the same as the size of the complete machine idle memory corresponding to the electronic equipment in the jth GC.

The on-off state corresponding to the electronic device at the ith GC is the same as the on-off state corresponding to the jth GC.

In other embodiments, the electronic device may also receive a third operation by the user for a third application and, in response to the operation, launch and run the third application.

During the operation of the third application, the memory space occupied by the third application in the electronic device may change, and may trigger multiple garbage recycling processes (i.e., GC), for example, during the operation of the third application, the third application may undergo an mth GC process and an nth GC process, where m and n are two different positive integers.

And in the running process of the third application, the size of the memory space occupied by the third application after the mth garbage collection treatment is a third memory value, and the size of the memory space occupied by the third application after the nth garbage collection treatment is a fourth memory value, wherein the third memory value is different from the fourth memory value.

After the mth garbage collection, since the third application actually occupies the memory space to be the third memory value, a GC waterline value (i.e., a fifth preset threshold) triggering the mth+1th GC process may be determined by using a set of GC-related parameters corresponding to the third application. Thus, after the mth GC processing, when the memory size occupied by the third application reaches a fifth preset threshold from the third memory value, the (m+1) th garbage collection processing is performed for the third application.

After the nth garbage collection is performed, since the third application actually occupies the memory space and is a fourth memory value, the third memory value is different from the fourth memory value, and another set of GC-related parameters corresponding to the third application may be used to determine the GC waterline value (i.e., the sixth preset threshold) that triggers the n+1th GC processing. In this way, after the nth garbage collection is performed, when the memory size occupied by the third application reaches a sixth preset threshold value from the fourth memory value, the (n+1) th garbage collection processing is performed for the third application.

It will be appreciated that, due to the different space utilization rates corresponding to the different GC-related parameters, the first ratio between the third memory value and the fifth predetermined threshold is different from the second ratio between the fourth memory value and the sixth predetermined threshold.

In some embodiments, for applications that do not need to use dedicated GC-related parameters, the corresponding exclusive memory space and GC waterline value may be determined directly using the system default GC-related parameters. For example, as shown in fig. 5, the method further includes:

s104, when the application program 2 starts to run, the identification 2 of the application program 2 is acquired.

In some embodiments, the identifier 2 may uniquely indicate the application 2. The identifier 2 may be an application name corresponding to the application 2. Also, for example, the identifier 2 may also be a process name corresponding to the application 2, that is, a name of an application process created when the application 2 runs.

S105, when the identifier 2 does not belong to the pre-configuration list, determining the exclusive memory space allocated to the application program 2 according to the default GC related parameters 2 of the system. Illustratively, as shown in FIG. 10, the above S105 may include S105-1 and S105-3.

S105-1, the electronic device may obtain a pre-configured list.

In some embodiments, if system profile 1 has been parsed, the preconfigured list is obtained directly. If the system configuration file 1 is not already parsed, the system configuration file 1 is parsed first to obtain the pre-configuration list.

S105-2, acquiring the GC related parameters 2 when the identification 2 is different from the identification in the pre-configuration list.

As shown in fig. 10, when the identifier 2 is "chat", the identifier "chat" is not included in the preconfigured list. Thus, the electronic device can query the GC-related parameters 2 analyzed during the startup phase. It will be appreciated that when the identifier 2 is "chat", it may indicate that the application 2 belongs to a chat application, and in addition, since the preconfigured list does not contain the identifier "chat", it indicates that the application 2 does not belong to an application requiring a dedicated GC-related parameter, that is, for the application 2, the GC-related parameter 2 default by the system is the most suitable GC-related parameter.

S105-3, determining reserved memory space allocated to the application program 2 according to the GC related parameters 2 and the real occupied memory space corresponding to the application program 2.

For example, as shown in fig. 10, the GC related parameter 2 includes a minimum reservation limit of 2M, a maximum reservation limit of 12M, a space utilization of 0.8, and an exclusive space upper limit of 512M. Under the condition that the application process corresponding to the application program 2 occupies 50M, the calculated reserved memory space is 12.5M according to the space utilization rate. Under the limitation of the maximum reserved limit (e.g., 12M), the actual reserved memory space may be determined to be 12M.

For another example, in the case that the application process corresponding to the application program 2 already occupies 40M, the calculated reserved memory space is 10M according to the space utilization. It will be appreciated that 10M is less than the maximum reservation limit (12M) in GC-related parameter 2 and greater than the minimum reservation limit (2M) in GC-related parameter 2. The electronic device may determine that the reserved memory space allocated to application 2 is 10M.

For another example, in the case that the application process corresponding to the application program 2 already occupies 6M, the calculated reserved memory space is 1.5M according to the space utilization. It will be appreciated that 1.5M is less than the minimum reservation limit (2M) in GC-related parameter 2. The electronic device may determine that the reserved memory space allocated to application 2 is equal to the minimum reservation limit (i.e., 2M) described above.

In this way, the electronic device determines the memory space exclusively allocated to the application program 2 according to the real occupied memory space and the reserved memory space corresponding to the application program 2.

In some embodiments, the exclusive memory space allocated to application 2 includes real-world memory space and reserved memory space. For example, the size of the memory space allocated exclusively to application 2 may be equal to the sum of the real memory space and the reserved memory space. Also for example, the size of the memory space allocated exclusively to application 2 may be slightly larger than the sum of the real memory space and the reserved memory space.

In this way, the electronic device may determine the GC watermark value corresponding to the application 2 according to the size of the exclusive memory space allocated to the application 2. When the real occupied memory space corresponding to the application 2 is greater than or equal to the corresponding GC waterline value, the GC for the application 2 may be triggered.

In addition, for applications 2 that do not belong to the pre-configured list, the GC-related parameters are considered as default GC-related parameters before the applications are not added to the pre-configured list, and after each GC processing in the whole life cycle of the applications 2, the electronic device allocates exclusive memory space for the applications 2 according to the default GC-related parameters, that is, the electronic device does not dynamically adjust the GC-related parameters corresponding to the applications 2.

In addition, the corresponding part belongs to a pre-configured list, but only corresponds to an application program with a set of GC-related parameters, and the electronic equipment cannot dynamically adjust the GC-related parameters corresponding to the application program in the whole life cycle.

The second application and the fourth application are exemplified below. The second application and the fourth application may be applications outside the application set, or may be applications corresponding to only one set of GC-related parameters. For example, the second application and the fourth application may be applications in which GC numbers of music applications, internet protocol car applications, internet banking applications, calendar applications, weather applications, etc. are not greatly affected by use cases.

In some embodiments, the electronic device may receive a second operation by the user for the second application and, in response to the operation, launch and run the second application.

In the running process of the second application, the memory space occupied by the second application in the electronic device changes, and multiple garbage recycling processes (i.e., GCs) are triggered, for example, the second application passes through the r-th GC and the k-th GC in the running process, where r and k are both positive integers, and can be the same or different. After the electronic equipment performs the r-th GC processing on the second application, the size of the memory space occupied by the second application is a second memory value, that is, when the r-th GC processing is completed, the size of the real occupied memory space of the second application is the second memory value; after the electronic device performs the kth GC processing on the second application, the size of the memory space occupied by the second application is also the second memory value, that is, when the kth GC processing is completed, the size of the real occupied memory space of the second application is also the second memory value.

Triggering the (r+1) th garbage recycling treatment aiming at the second application when the memory size occupied by the second application reaches a third preset threshold value from the second memory value. And when the memory size occupied by the second application reaches a fourth preset threshold value from the second memory value, carrying out k+1th garbage recycling treatment on the second application.

In some embodiments, the third preset threshold is the same as the fourth preset threshold in any scenario. For example, in the scenario indicated by the third preset condition, as long as the memory size after the GC is the same, the configured waterline value of the trigger GC is also the same. Wherein the third preset condition includes one or more of the following:

The CPU occupancy rate corresponding to the electronic equipment in the r-th garbage recycling process is different from the CPU occupancy rate corresponding to the electronic equipment in the k-th garbage recycling process.

The number of garbage collection times of the second application in the fifth period of time is different from the number of garbage collection times in the sixth period of time, the fifth period of time being a period of time before the completion of the r-th garbage collection process, the sixth period of time being a period of time before the completion of the k-th garbage collection process, the fifth period of time being the same as the sixth period of time. For example, the fifth period may be a polling period corresponding to the nth GC completion time point for the second application, and the sixth period may be a polling period corresponding to the kth GC completion time point for the second application.

The equipment temperature corresponding to the electronic equipment in the r-th garbage recycling process is different from the equipment temperature corresponding to the electronic equipment in the k-th garbage recycling process.

The size of the idle memory of the whole machine corresponding to the electronic equipment in the r-th garbage recycling process is different from the size of the idle memory of the whole machine corresponding to the electronic equipment in the k-th garbage recycling process.

The on-off screen state of the electronic device corresponding to the r-th garbage collection treatment is different from the on-off screen state of the electronic device corresponding to the k-th garbage collection treatment.

The third preset condition is similar to the first preset condition, and refers to a scenario in which GC-related parameters corresponding to the application program can be changed. However, the second application may only have one set of GC-related parameters, and in any scenario (e.g., a scenario including a scenario satisfying the third preset condition and a scenario satisfying the fourth preset condition), the corresponding GC-related parameters cannot be changed, that is, the second application may have the same GC waterline when the GC takes up the same memory space after two GCs.

Wherein the fourth preset condition includes all of the following:

The CPU occupancy rate corresponding to the electronic equipment in the r-th garbage recycling process is the same as the CPU occupancy rate corresponding to the electronic equipment in the k-th garbage recycling process;

The number of garbage collection times of the second application in the fifth time period is the same as that in the sixth time period;

the temperature of the equipment corresponding to the electronic equipment in the r-th garbage recycling treatment is the same as the temperature of the equipment corresponding to the electronic equipment in the k-th garbage recycling treatment;

The size of the idle memory of the whole machine corresponding to the electronic equipment in the r-th garbage recycling process is the same as the size of the idle memory of the whole machine corresponding to the electronic equipment in the k-th garbage recycling process;

the corresponding on-off screen state of the electronic equipment in the r-th garbage recycling process is the same as the corresponding on-off screen state in the k-th garbage recycling process.

In addition, the fourth application corresponds to only one set of GC-related parameters, which do not change throughout the life cycle of the fourth application. Upon receiving a launch operation, such as a fourth operation, for the fourth application, the fourth application may launch the run. And triggering multiple garbage recycling treatments in the fourth application operation process. For example, the a-th garbage collection process and the b-th garbage collection process may be triggered. And after the a-th garbage collection treatment, the real occupied memory space corresponding to the fourth application is a third memory value, if the determined reserved memory space is not equal to the maximum reserved limit value or the minimum reserved limit value in the GC related parameters according to the third memory value and the corresponding GC related parameters, and when the memory size occupied by the fourth application reaches a seventh preset threshold value (GC waterline value) from the third memory value, the a+1th garbage collection treatment is carried out for the fourth application, wherein a is a positive integer.

In addition, after the b-th garbage collection is performed, the size of the memory space occupied by the fourth application is a fourth memory value, if the determined reserved memory space is not equal to the maximum reserved limit value or the minimum reserved limit value in the GC-related parameter according to the fourth memory value and the corresponding GC-related parameter, the b+1th garbage collection process is performed for the fourth application when the size of the memory occupied by the fourth application reaches an eighth preset threshold value from the fourth memory value, wherein b is a positive integer.

When the third memory value is different from the fourth memory value, the third ratio corresponding to the seventh preset threshold is the same as the fourth ratio (space utilization ratio) corresponding to the eighth preset threshold. The third ratio is the space utilization rate of the GC-related parameters, and is the ratio between the third memory value and the seventh preset threshold. Similarly, the fourth ratio is the space utilization in the GC-related parameters employed, and is the ratio between the fourth memory value and the eighth predetermined threshold.

The differences between the method provided by the application and the method not provided by the application for the electronic equipment (such as a mobile phone) are introduced below through GC frequency and memory occupation conditions in the actual running process of various types of application programs.

Illustratively, third party application microblogs ^TM common in electronic devices belong to heavy-duty applications. Taking microblog ^TM as a test object, testing a scene (such as a scene 1) of the electronic equipment using the method provided by the application and a scene (such as a scene 2) of the electronic equipment not using the method provided by the application, wherein the GC conditions corresponding to microblog ^TM are shown in the following table 4:

TABLE 4 Table 4

The GC interval is an interval duration between two adjacent GCs, the GC average time is an average value of durations occupied by a single GC, the GC number is a total GC number during the operation of the microblog ^TM, and the GC total duration is a total duration of actually executing the GC during the operation of the microblog ^TM.

Obviously, according to the test results of table 4, compared with the method without the method of the present application, after the method of the present application is used, in the same operation duration, the GC interval of the electronic device for the microblog ^TM is longer, the GC number is less, although the GC average time is slightly longer, the GC total duration is shorter, that is, the problem of frequent GC of heavy load application of the third party is obviously improved, and the occupation duration of the GC to the system resource is effectively reduced. Of course, after the method provided by the application is used, the problems of frequent GC can be improved by WeChat ^TM, short video application, game application, video application, and the like, in addition to microblog ^TM.

Also illustratively, the system service (SYSTEM SERVER) in the electronic device belongs to a heavily loaded system application. Taking SYSTEM SERVER as a test object, testing the GC condition corresponding to SYSTEM SERVER of a scene (such as a scene 1) of the electronic equipment using the method provided by the application and a scene (such as a scene 2) of the electronic equipment not using the method provided by the application, wherein the test results are shown in the following table 5:

TABLE 5

According to the test results of table 5, compared with the method without the application, the method provided by the application has the advantages that the GC interval of the electronic equipment aiming at SYSTEM SERVER is longer, the GC times are fewer, the total GC duration is shorter in the same operation duration, that is, the problem that the frequent GC is applied to a heavy-load system is obviously improved, and the occupation duration of the GC on system resources is effectively reduced.

Also illustratively, the process com. Taking com.android.phone as a test object, testing a scene (such as a scene 1) of the electronic equipment using the method provided by the application and a scene (such as a scene 2) not using the method provided by the application, wherein the com.android.phone corresponds to the GC condition, and the test results are shown in the following table 6:

TABLE 6

com.android.phone	Size of resident memory (M)
		Scene 2	69
Scene 1	47

According to the test results of table 6, compared with the method without the method, the method provided by the application has less resident memory corresponding to com. That is, the problem that the GC cannot be triggered for a long time by the application of significantly improving the light load, resulting in the excessive resident memory is caused. In addition to the com.android.phone thread, calendar applications, memo applications, clock applications, attendance applications, etc. can also improve the problem of excessive resident memory after the above method is applied.

The embodiment of the application also provides electronic equipment, which can comprise: a memory and one or more processors. The memory is coupled to the processor. The memory is for storing computer program code, the computer program code comprising computer instructions. The computer instructions, when executed by a processor, cause the electronic device to perform the various steps of the embodiments described above. Of course, the electronic device includes, but is not limited to, the memory and the one or more processors described above.

The embodiment of the application also provides a chip system which can be applied to the terminal equipment in the embodiment. As shown in fig. 11, the system-on-chip includes at least one processor 2201 and at least one interface circuit 2202. The processor 2201 may be a processor in an electronic device as described above. The processor 2201 and the interface circuit 2202 may be interconnected by wires. The processor 2201 may receive and execute computer instructions from the memory of the electronic device described above through the interface circuit 2202. The computer instructions, when executed by the processor 2201, may cause the electronic device to perform the various steps described in the embodiments above. Of course, the system-on-chip may also include other discrete devices, which are not particularly limited in accordance with embodiments of the present application.

In some embodiments, it will be clearly understood by those skilled in the art from the foregoing description of the embodiments, for convenience and brevity of description, only the division of the above functional modules is illustrated, and in practical application, the above functional allocation may be implemented by different functional modules, that is, the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.

The functional units in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or a part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: flash memory, removable hard disk, read-only memory, random access memory, magnetic or optical disk, and the like.

The foregoing is merely a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited to this, and any changes or substitutions within the technical scope disclosed in the embodiment of the present application should be covered in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for recycling memory garbage, which is characterized by being applied to electronic equipment, the method comprising:

receiving a first operation of a user for a first application;

starting the first application in response to the first operation, wherein the first application is subjected to multiple garbage recycling treatments in the running process;

The method comprises the steps that after ith garbage collection treatment, the size of a memory space occupied by a first application is a first memory value, and under the condition that the size of the memory occupied by the first application reaches a first preset threshold value from the first memory value, the (i+1) th garbage collection treatment is carried out on the first application, wherein i is a positive integer;

When the size of the memory space occupied by the first application is a first memory value after the jth garbage collection treatment and the size of the memory occupied by the first application reaches a second preset threshold value from the first memory value, the jth (plus 1) garbage collection treatment is carried out on the first application, wherein j is a positive integer;

Under a first preset condition, the first preset threshold value is different from the second preset threshold value; the first preset condition includes a combination of one or more of the following:

The CPU occupancy rate corresponding to the electronic equipment in the ith garbage recycling process is different from the CPU occupancy rate corresponding to the electronic equipment in the jth garbage recycling process;

the garbage collection times of the first application in a first time period are different from the garbage collection times in a second time period, wherein the first time period is a time period before the completion of the ith garbage collection treatment, the second time period is a time period before the completion of the jth garbage collection treatment, and the time lengths of the first time period and the second time period are the same;

The equipment temperature corresponding to the electronic equipment in the ith garbage recycling treatment is different from the equipment temperature corresponding to the electronic equipment in the jth garbage recycling treatment;

the size of the idle memory of the whole machine corresponding to the electronic equipment in the ith garbage recycling process is different from the size of the idle memory of the whole machine corresponding to the electronic equipment in the jth garbage recycling process;

The on-off screen state corresponding to the electronic equipment in the ith garbage recycling treatment is different from the on-off screen state corresponding to the electronic equipment in the jth garbage recycling treatment.

2. The method according to claim 1, characterized in that, under a second preset condition, the first preset threshold value is identical to the second preset threshold value, the second preset condition comprising all of the following:

The CPU occupancy rate corresponding to the electronic equipment in the ith garbage recycling process is the same as the CPU occupancy rate corresponding to the electronic equipment in the jth garbage recycling process;

The number of garbage collection times of the first application in the first time period is the same as the number of garbage collection times in the second time period;

the equipment temperature corresponding to the electronic equipment in the ith garbage recycling treatment is the same as the equipment temperature corresponding to the electronic equipment in the jth garbage recycling treatment;

the size of the idle memory of the whole machine corresponding to the electronic equipment in the ith garbage recycling process is the same as the size of the idle memory of the whole machine corresponding to the electronic equipment in the jth garbage recycling process;

The corresponding on-off screen state of the electronic equipment in the ith garbage recycling treatment is the same as the corresponding on-off screen state in the jth garbage recycling treatment.

3. The method of claim 1, wherein the CPU occupancy rate corresponding to the electronic device at the ith garbage collection treatment includes any one of the following:

the CPU occupancy rate occupied by the first application when the ith garbage collection treatment is completed;

The CPU occupancy rate occupied by the whole electronic equipment when the ith garbage recycling treatment is completed;

The average CPU occupancy rate of the whole machine in a third time period, wherein the third time period is a time period before the ith garbage recycling treatment is completed;

The average CPU occupancy rate of the first application in the third time period;

the CPU occupancy rate corresponding to the electronic equipment in the j-th garbage recycling process comprises any one of the following:

the CPU occupancy rate occupied by the first application when the j-th garbage collection treatment is completed;

The CPU occupancy rate occupied by the whole electronic equipment when the j-th garbage recycling treatment is completed;

the average CPU occupancy rate of the whole machine in a fourth time period, wherein the fourth time period is a time period before the j-th garbage recycling treatment is completed, and the time length of the third time period is the same as that of the fourth time period;

And the average CPU occupancy rate of the first application in the fourth time period.

4. A method according to any of claims 1-3, wherein the first application is an application located in a set of applications preset in the electronic device.

5. The method of claim 4, wherein the first application comprises a gaming application, an instant messaging application, a system service, a social application, a short video application, a live application, a meeting application, a mail application.

6. The method of claim 4, further comprising a second application in the electronic device, the second application being an application that is outside of the preset set of applications, the method further comprising:

receiving a second operation of a user for the second application;

In response to the second operation, starting the second application, wherein the second application is subjected to multiple garbage recycling treatments in the running process;

the memory space occupied by the second application is a second memory value after the r-th garbage collection treatment, and when the memory size occupied by the second application reaches a third preset threshold value from the second memory value, the r+1th garbage collection treatment is carried out on the second application, wherein r is a positive integer;

The size of the memory space occupied by the second application is a second memory value after the kth garbage collection treatment, and when the size of the memory occupied by the second application reaches a fourth preset threshold value from the second memory value, the kth+1th garbage collection treatment is carried out on the second application, wherein k is a positive integer;

Wherein the third preset threshold is the same as the fourth preset threshold.

7. The method of claim 5, wherein the application set comprises a pre-specified application program or the application set comprises an application program with at least one of application usage frequency, application load size, and application installation package size meeting a pre-set requirement.

8. A method for recycling memory garbage, which is characterized by being applied to electronic equipment, the method comprising:

Receiving a third operation of a user for a third application;

starting the third application in response to the third operation, wherein the third application is subjected to multiple garbage recycling treatments in the running process;

After the mth garbage collection is performed, the size of the memory space occupied by the third application is a third memory value, and when the size of the memory occupied by the third application reaches a fifth preset threshold value from the third memory value, the mth+1th garbage collection processing is performed for the third application, wherein m is a positive integer;

After the nth garbage collection is carried out, the size of the memory space occupied by the third application after the nth garbage collection is a fourth memory value, and when the size of the memory occupied by the third application reaches a sixth preset threshold value from the fourth memory value, the (n+1) th garbage collection is carried out for the third application, wherein n is a positive integer;

And when the third memory value is different from the fourth memory value, the first ratio corresponding to the fifth preset threshold is different from the second ratio corresponding to the sixth preset threshold, the first ratio is the ratio between the third memory value and the fifth preset threshold, and the second ratio is the ratio between the fourth memory value and the sixth preset threshold.

9. The method of claim 8, wherein a fourth application is included in the electronic device, the method comprising:

receiving a fourth operation of a user for a fourth application;

in response to the fourth operation, starting the fourth application, wherein the fourth application is subjected to multiple garbage recycling treatments in the running process;

After the garbage collection for the a-th time is performed, the size of the memory space occupied by the fourth application is a third memory value, and when the size of the memory occupied by the fourth application reaches a seventh preset threshold value from the third memory value, the garbage collection for the a-th time and the (1) -th time is performed for the fourth application, wherein a is a positive integer;

After the b-th garbage collection is performed, the size of the memory space occupied by the fourth application is a fourth memory value, and when the size of the memory occupied by the fourth application reaches an eighth preset threshold value from the fourth memory value, the b+1th garbage collection is performed on the fourth application, wherein b is a positive integer;

Wherein, when the third memory value is different from the fourth memory value, a third ratio corresponding to the seventh preset threshold is the same as a fourth ratio corresponding to the eighth preset threshold, the third ratio is a ratio between the third memory value and the seventh preset threshold, and the fourth ratio is a ratio between the fourth memory value and the eighth preset threshold;

The third application is an application located in a preset application set in the electronic device, and the fourth application is an application located outside the application set.

10. The method of claim 9, wherein the application set comprises a pre-specified application program, or the application set comprises an application program with at least one of an application usage frequency, an application load size, and an application installation package size meeting a preset requirement, the third application comprises a game application, an instant messaging application, a system service, a social application, a short video application, a live broadcast application, a conference application, and a mail application, and the fourth application comprises a network booking application, a music application, and a network banking application.

11. An electronic device comprising one or more processors and memory; the memory being coupled to a processor, the memory being for storing computer program code comprising computer instructions which, when executed by one or more processors, are for performing the method of any of claims 1-10.

12. A computer storage medium comprising computer instructions which, when run on an electronic device, cause the electronic device to perform the method of any of claims 1-10.

13. A computer program product, characterized in that the computer program product comprises a computer program which, when run on a computer, causes the computer to perform the method according to any of claims 1-10.