CN109117263B - Method and device for releasing memory of user terminal - Google Patents
Method and device for releasing memory of user terminal Download PDFInfo
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- CN109117263B CN109117263B CN201710486412.4A CN201710486412A CN109117263B CN 109117263 B CN109117263 B CN 109117263B CN 201710486412 A CN201710486412 A CN 201710486412A CN 109117263 B CN109117263 B CN 109117263B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
- G06F9/5022—Mechanisms to release resources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5011—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals
- G06F9/5016—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resources being hardware resources other than CPUs, Servers and Terminals the resource being the memory
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Techniques For Improving Reliability Of Storages (AREA)
Abstract
The invention discloses a method and a device for releasing a memory of a user terminal, which relate to the technical field of user terminals, and the method comprises the following steps: when the memory of the operating system is found to be insufficient, counting the system priority, the occupied memory size and the use habit of the user of the running application in the memory; generating a destroying application sequence for destroying running applications in the memory according to the counted system priority, the occupied memory size and the user using habit; and according to the destroying application sequence, destroying the running application in the memory. According to the method, the native memory recovery mechanism of the android system is optimized, the priority sequence of application destruction is more reasonably adjusted, important applications of the system are guaranteed as much as possible, meanwhile, the applications in use by a user are guaranteed, and the stability and the user experience of the system are improved.
Description
Technical Field
The present invention relates to the field of user terminals, and in particular, to a method and apparatus for releasing a memory of a user terminal.
Background
When the android intelligent terminal is in insufficient memory, the existing solutions are all realized by destroying an application through a memory recovery mechanism (lowmemrykiller) in the kernel of the android system. The implementation method of the memory recycling mechanism is to jointly determine a sequence table for destroying the application according to the system priority where the application is located and the actual occupied memory size. The priority of the application system is judged preferentially, and when the priorities are the same, the application with large actual occupied memory is deleted preferentially.
However, in practical operation, due to many market demand schemes, some special applications need to be protected from being easily destroyed, and manufacturers may artificially raise the priority of these applications with originally low priority. Therefore, the condition that the original memory recycling mechanism judges the priority of the destroyed application is disturbed, so that important applications which are high in original priority and cannot be destroyed easily are destroyed in advance, and resource waste of application processes occurs. Even applications that the user is using, such as video or background audio applications, may be destroyed and the user's use may be interrupted, reducing the user experience.
Disclosure of Invention
The technical problem solved by the scheme provided by the embodiment of the invention is that important applications cannot be guaranteed not to be destroyed in a memory recovery mechanism.
The method for releasing the memory of the user terminal provided by the embodiment of the invention comprises the following steps:
when the memory of the operating system is found to be insufficient, counting the system priority, the occupied memory size and the use habit of the user of the running application in the memory;
generating a destroying application sequence for destroying running applications in the memory according to the counted system priority, the occupied memory size and the user using habit;
and according to the destroying application sequence, destroying the running application in the memory.
Preferably, the counting of the usage habits of the user includes:
when each time of starting, counting the use duration and the use times of the users running the applications in the memory;
when the memory of the operating system is found to be insufficient, the user use habit of each running application in the memory is obtained according to the counted user use duration and the counted user use times of each running application in the memory.
Preferably, the generating the destruction application sequence for destroying the running application in the memory based on the counted user usage habit and the counted system priority, occupied memory size and user usage habit includes:
according to the counted system priority, occupied memory size and user usage habit, calculating the destroying application priority of each running application in the memory according to a weight duty ratio calculation formula;
according to the destroying reference priority of each running application, the destroying application priority of all running applications in the memory is ordered, and the destroying application order of the running applications in the destroying memory is generated.
Preferably, the weight ratio calculation formula for calculating the destruction application priority is as follows:
destroying application priority = system priority X + occupied memory size Y + user usage habit Z;
wherein X < Y < Z, and X, Y, Z are positive integers.
Preferably, after the destroying application ordering of the running application in the destroying memory is generated, the method further includes:
detecting an operating application in a memory, and judging whether the operating application contains an audio-video application being used by a user or not;
if the running application contains the audio-video application which is being used by the user, regenerating a new destroying application sequence by improving the destroying application priority of the audio-video application.
Preferably, the destroying the running application in the memory according to the destroying application sequence includes:
and selecting running applications with lowest destroying application priorities in the destroying application sequence one by one according to the destroying application sequence to destroy until insufficient memory is not found.
Preferably, the method further comprises:
judging whether the audio-video application being used by the user is destroyed or not by monitoring the audio-video application being used by the user;
and if the audio and video application being used by the user is judged to be destroyed, triggering a recovery mechanism flow after the memory is recovered.
The device for releasing the memory of the user terminal provided by the embodiment of the invention comprises the following components:
the statistics module is used for carrying out statistics on the system priority, occupied memory size and user use habit of the running application in the memory;
the generation module is used for generating a destroying application sequence for destroying the running application in the memory according to the counted system priority, occupied memory size and user use habit;
the destroying module is used for destroying the running application in the memory according to the destroying application sequence.
Preferably, the statistics module is specifically configured to, when each time of starting, count a user use duration and a user use number of times of each running application in the memory, and when the memory of the operating system is found to be insufficient, obtain a user use habit of each running application in the memory according to the counted user use duration and user use number of times of each running application in the memory.
Preferably, the generating module includes:
the computing unit is used for computing the destroying application priority of each running application in the memory according to the counted system priority, the occupied memory size and the user using habit and the weight ratio computing formula;
the generation unit is used for sequencing the priority of the destroying application of all the running applications in the memory according to the destroying reference priority of each running application, and generating the destroying application sequence of the running application in the destroying memory.
According to the scheme provided by the embodiment of the invention, the purposes of protecting important applications of the system and applications with high demands for users are achieved, the risk of system breakdown caused by the indiscriminate destruction process of the system primary memory recovery mechanism is reduced, the system stability is ensured, and the user experience is improved.
Drawings
Fig. 1 is a flowchart of a method for releasing a memory of a user terminal according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a device for releasing a memory of a user terminal according to an embodiment of the present invention;
FIG. 3 is a flow chart of dynamically adjusting application memory reclamation priorities in accordance with an embodiment of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the preferred embodiments described below are merely illustrative and explanatory of the invention, and are not restrictive of the invention.
Fig. 1 is a flowchart of a method for releasing memory of a user terminal according to an embodiment of the present invention, where, as shown in fig. 1, the method includes:
step S101: when the memory of the operating system is found to be insufficient, counting the system priority, the occupied memory size and the use habit of the user of the running application in the memory;
step S102: generating a destroying application sequence for destroying running applications in the memory according to the counted system priority, the occupied memory size and the user using habit;
step S103: and according to the destroying application sequence, destroying the running application in the memory.
Wherein, the statistics on the user usage habits comprises: when each time of starting, counting the use duration and the use times of the users running the applications in the memory; when the memory of the operating system is found to be insufficient, the user use habit of each running application in the memory is obtained according to the counted user use duration and the counted user use times of each running application in the memory.
Wherein, the generating a destroying application sequence for destroying the running application in the memory based on the counted user usage habit and the counted system priority, occupied memory size and user usage habit comprises: according to the counted system priority, occupied memory size and user usage habit, calculating the destroying application priority of each running application in the memory according to a weight duty ratio calculation formula; according to the destroying reference priority of each running application, the destroying application priority of all running applications in the memory is ordered, and the destroying application order of the running applications in the destroying memory is generated.
Specifically, the weight ratio calculation formula for calculating the destruction application priority is as follows: destroying application priority = system priority X + occupied memory size Y + user usage habit Z; wherein X < Y < Z, and X, Y, Z are positive integers.
Specifically, after the destroying application ordering of the running application in the destroying memory is generated, the method further includes: detecting an operating application in a memory, and judging whether the operating application contains an audio-video application being used by a user or not; if the running application contains the audio-video application which is being used by the user, regenerating a new destroying application sequence by improving the destroying application priority of the audio-video application.
Wherein, the destroying the running application in the memory according to the destroying application sequence includes: and selecting running applications with lowest destroying application priorities in the destroying application sequence one by one according to the destroying application sequence to destroy until insufficient memory is not found.
The embodiment of the invention also comprises the following steps: judging whether the audio-video application being used by the user is destroyed or not by monitoring the audio-video application being used by the user; and if the audio and video application being used by the user is judged to be destroyed, triggering a recovery mechanism flow after the memory is recovered.
Fig. 2 is a schematic diagram of an apparatus for releasing a memory of a user terminal according to an embodiment of the present invention, where, as shown in fig. 2, the apparatus includes: the statistics module 201 is configured to perform statistics on a system priority, an occupied memory size and a user usage habit of an application running in a memory; the generating module 202 is configured to generate a destruction application ranking for destroying the running applications in the memory according to the counted system priority, occupied memory size and user usage habit; and the destruction module 203 is configured to perform destruction processing on the running applications in the memory according to the destruction application ranking.
The statistics module 201 is specifically configured to, when each start-up, count a user use duration and a user use number of each running application in the memory, and when the operating system is found to be insufficient, obtain a user use habit of each running application in the memory according to the counted user use duration and user use number of each running application in the memory.
Wherein the generating module 202 includes: the computing unit is used for computing the destroying application priority of each running application in the memory according to the counted system priority, the occupied memory size and the user using habit and the weight ratio computing formula; the generation unit is used for sequencing the priority of the destroying application of all the running applications in the memory according to the destroying reference priority of each running application, and generating the destroying application sequence of the running application in the destroying memory.
Fig. 3 is a flowchart of dynamically adjusting application memory reclamation priority according to an embodiment of the present invention, including the following modules:
A. android native memory reclamation component: the component is an android system native memory release management component, a sequence table for destroying applications is determined through the priority of the applications and the size of the currently actually occupied memory, the applications are destroyed one by one, and the memory is recovered.
B. A memory sequence table adjusting component: the component is a newly added component of the invention, and a factor of a user's habit of using a certain application is newly added, and two factors obtained by the original recovery component are integrated, and according to a weight proportion formula of X, Y and Z:
original system priority X + actual occupied memory size X Y + user usage habit X Z
And dynamically adjusting a priority order table of the destroying application. Wherein, the liquid crystal display device comprises a liquid crystal display device,
1. in principle it is considered that: z ∈ Y ∈ X.
2. For user usage duty cycle factors, the sampling parameters of the present invention will include, but are not limited to: the time length of the use of a certain application by a user and the frequency of the use of the certain application by the user.
And integrating all parameters to calculate a complete user habit value. For example, if a user uses an application for a long time and uses it frequently, the user usage habit value of the application will be high.
Meanwhile, when the application to be destroyed is an audio/video application used by the user in the foreground or the background, the application will be preferentially reserved, and the priority is adjusted to be next to the highest priority component of the system, namely, a system service component (system_server).
C. Important application recovery component: the component is also a new component of the invention. When the memory is seriously insufficient, and the application which is being used by the user in B is destroyed, before the destruction, the name of the application component is acquired through an application management service component (AMS), and the system is restarted after the system is recovered to be normal.
The specific process of the embodiment of the invention comprises the following steps:
step 1: recording certain application starting basic information.
Step 1.1: each time an application interface is presented to a user, the time at which the application was launched is obtained by an application management service component (AMS) and timing is started. The application stops timing when exiting, and continues when restarting the timepiece.
Step 1.2: the starting times of each application are recorded through the application management service component, and the starting times are accumulated each time.
Step 1.3: and (3) integrating the parameters obtained in the steps 1.1 and 1.2, and calculating the use habit value of the user.
Step 2: when the memory is insufficient and a memory recovery mechanism is triggered, a new application destruction priority sequence is calculated according to the actual use condition of the application and the weight ratio mode
Step 2.1: and acquiring the actual occupied memory size of the application and the priority of the original system of the application through a system original memory recycling mechanism.
Step 2.2: and (3) integrating the three parameters obtained in the step (1.3) and the step (2.1), and calculating the priority of each application by using the weight ratio of X, Y and Z according to the following calculation formula:
original system priority X + actual occupied memory size X Y + user usage habit X Z
Wherein Z ∈ Y ∈ X.
Step 2.3: and judging whether an audio and video application used by the system exists or not by utilizing the multimedia management component, and if so, improving the application priority to the front of the system service component.
Step 2.4: and judging the application currently used by the user by using the application management service component, and improving the priority to protect.
Step 2.4: and obtaining a final application destruction priority sequence through the four steps.
Step 3: and destroying the applications one by one from the application with the lowest priority according to the new application priority sequence.
Step 4: if the application being used by the user is destroyed due to serious shortage of memory, a recovery mechanism is triggered. Before destruction, the name of the audio and video application component is obtained and stored through the application management service component, and when the system memory alarm is released, the application is restarted.
Examples:
the method for dynamically adjusting the priority sequence of destroying the application when the memory is released in the embodiment of the invention comprises the following steps:
the first step: starting from the starting terminal equipment, recording the use accumulated time length data of each application and the running times of each application.
And a second step of: when the memory is insufficient, the priority of the original application system and the actual memory occupation size of each application are obtained through a memory recovery mechanism of the original system.
And a third step of: and acquiring the application accumulated time length and the application use times recorded in the first step or other related parameters, and comprehensively calculating the use habit value of the user.
Fourth step: and (3) recalculating the priority of destroying the application according to the three parameters obtained in the second step and the third step according to the weight ratio of X to Y to Z, and readjusting the destroying priority for the application by calculating the obtained value through a weight calculation formula. And confirm whether the audio-video application is operated by users in the background through the multimedia service assembly, if yes, improve the audio-video application priority; if not, the original priority is reserved.
Fifth step: and according to the newly obtained priority list, recovering from the application with the smallest priority until the alarm of the system memory is released.
Sixth step: if the prior system memory is seriously insufficient, so that the audio and video application which is being used by the user is destroyed, a recovery mechanism is triggered after the memory is recovered. Before the audio and video applications are destroyed, the names of the application components to be destroyed are recorded, and after the memory shortage state is relieved, if the applications are destroyed, the applications are directly pulled up again.
According to the scheme provided by the embodiment of the invention, the priority sequence of application destruction is more reasonably adjusted, important application of the system is guaranteed as much as possible, simultaneously, the application in use by a user is guaranteed, and the system stability and the user experience are improved.
Although the present invention has been described in detail hereinabove, the present invention is not limited thereto and various modifications may be made by those skilled in the art in accordance with the principles of the present invention. Therefore, all modifications made in accordance with the principles of the present invention should be understood as falling within the scope of the present invention.
Claims (9)
1. A method for releasing the memory of a user terminal comprises the following steps:
when the memory of the operating system is found to be insufficient, counting the system priority, the occupied memory size and the use habit of the user of the running application in the memory;
generating a destroying application sequence for destroying running applications in the memory according to the counted system priority, the occupied memory size and the user using habit;
according to the destroying application sequence, destroying the running application in the memory;
judging whether the audio-video application being used by the user is destroyed or not by monitoring the audio-video application being used by the user;
and if the audio and video application being used by the user is judged to be destroyed, triggering a recovery mechanism flow after the memory is recovered.
2. The method of claim 1, further comprising recording a user usage time period and a number of user uses for each running application in memory at each start, and wherein counting the user usage habits comprises:
and obtaining the user use habit of each running application in the memory according to the recorded user use duration and the user use times of each running application in the memory.
3. The method of claim 1, wherein the generating a destruction application ranking for destroying the running applications in memory based on the statistically derived system priority, occupied memory size, and user usage habits comprises:
according to the counted system priority, occupied memory size and user usage habit, calculating the destroying application priority of each running application in the memory according to a weight duty ratio calculation formula;
and sorting the destroying application priority of all the running applications in the memory according to the destroying application priority of each running application, and generating a destroying application sorting for destroying the running applications in the memory.
4. A method according to claim 3, wherein the weight-to-ratio calculation formula for calculating the destruction application priority is:
destroying application priority = system priority X + occupied memory size Y + user usage habit Z;
wherein X < Y < Z, and X, Y, Z are positive integers.
5. The method of any of claims 1-4, further comprising, after the generating the destruction application ranking of the running applications in the destruction memory:
detecting an operating application in a memory, and judging whether the operating application contains an audio-video application being used by a user or not;
if the running application contains the audio-video application which is being used by the user, regenerating a new destroying application sequence by improving the destroying application priority of the audio-video application.
6. The method of claim 5, wherein the destroying the running application in the memory according to the destroying application ranking comprises:
and selecting running applications with lowest destroying application priorities in the destroying application sequence one by one according to the destroying application sequence to destroy until insufficient memory is not found.
7. An apparatus for releasing memory of a user terminal, comprising:
the statistics module is used for carrying out statistics on the system priority, occupied memory size and user use habit of the running application in the memory;
the generation module is used for generating a destroying application sequence for destroying the running application in the memory according to the counted system priority, occupied memory size and user use habit;
the destroying module is used for destroying the running application in the memory according to the destroying application sequence;
the judging module is used for judging whether the audio-video application being used by the user is destroyed or not by monitoring the audio-video application being used by the user;
and the recovery module is used for triggering a recovery mechanism flow after the memory is recovered if the audio and video application which is being used by the user is judged to be destroyed.
8. The apparatus of claim 7, further comprising a recording module for counting a user usage time and a user usage number for each running application in the memory at each start, and the counting module is further configured to: and obtaining the user use habit of each running application in the memory according to the recorded user use duration and the user use times of each running application in the memory.
9. The apparatus of claim 7, the generation module comprising:
the computing unit is used for computing the destroying application priority of each running application in the memory according to the counted system priority, the occupied memory size and the user using habit and the weight ratio computing formula;
the generating unit is used for sequencing the priority of the destroying application of all the running applications in the memory according to the priority of the destroying application of each running application, and generating the destroying application sequence of the running application in the destroying memory.
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| CN110543431A (en) * | 2019-08-27 | 2019-12-06 | Oppo（重庆）智能科技有限公司 | Memory optimization method and device, electronic equipment and storage medium |
| CN110879726B (en) * | 2019-10-24 | 2023-09-26 | 深圳数位大数据科技有限公司 | Keep-alive method and keep-alive device for mobile terminal application program |
| WO2021244212A1 (en) * | 2020-06-01 | 2021-12-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and system for dynamically assigning cpu resources to one or more applications |
| CN113268284A (en) * | 2021-06-01 | 2021-08-17 | 广州欢网科技有限责任公司 | Implementation method and device for quickly releasing internal memory of android APP and computer equipment |
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