CN108307236A - A kind of method, storage medium and the smart television of smart television memory optimization - Google Patents
A kind of method, storage medium and the smart television of smart television memory optimization Download PDFInfo
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- CN108307236A CN108307236A CN201810102589.4A CN201810102589A CN108307236A CN 108307236 A CN108307236 A CN 108307236A CN 201810102589 A CN201810102589 A CN 201810102589A CN 108307236 A CN108307236 A CN 108307236A
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- smart television
- memory
- running background
- threshold value
- current residual
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4435—Memory management
Abstract
The invention discloses a kind of method, storage medium and the smart television of smart television memory optimization, the method includes：When starting some application program, smart television obtains the memory headroom of current residual；By the memory headroom of the current residual got and preset threshold value comparison；If the memory headroom of current residual is less than the threshold value, start internal memory optimization mechanism, the process in running background would not allow for close.The present invention is by being arranged for judging whether the remaining memory headroom of smart television meets the threshold value that user needs the service requirement of application program to be started, to when free memory space is less than threshold value, it is closed the process in running background is not allowed, more free memories are rapidly released to use to system, make system run all right, ensure that smart television can avoid the occurrence of interim card, stuck no response with normal operation, the problems such as random reboot.
Description
Technical field
The present invention relates to technical field of television sets, and in particular to a kind of method of smart television memory optimization, storage medium
And smart television.
Background technology
Currently, the data that Android TV major part memory configurations on the market are all announced in 512MB or more, Android official
It is required that the minimum no less than 512MB of the total memory of system.With advances in technology and the aggravation of tv product market competition, Ge great Chang
Family scheme commercial city is proposed the TV SOC chip of built-in 512MB memories, passes through the contracting to memory in reduced cost of trying every possible means
Subtract, product price can be accomplished lower, aspect of performance can also be lost.
But under the prior art, after 512MB Androids TV starts, free memory space is smaller, only tens.When
When the current free memory of system is insufficient to start some application program, then system for TV set can be according to Android memory managements
Scheme and Low Memory Killer mechanism are ranked up the process of stop in memory according to certain algorithm；According to
The scheduling strategy of system itself terminates the low process of priority to achieve the purpose that releasing memory space.If the application started
Required memory is very big, and available memory very little, just will appear memory repeatedly and judge and release, to a certain extent system
Operation will be dragged slowly, led to system interim card, can be triggered Linux OOM what is more（Out Of Memory）, cause system straight
Collapse is connect, the stability of system is seriously affected, brings inconvenience to the user's use.
Therefore, the existing technology needs to be improved and developed.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, it is excellent to provide a kind of smart television
Change method, storage medium and the smart television of memory, it is intended to solve the smart television of the prior art in the process of running due to surplus
Remaining low memory and lead to system interim card, the problems such as stuck no response, random reboot.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of method of smart television memory optimization, wherein the method includes：
When starting some application program, smart television obtains the memory headroom of current residual；
By the memory headroom of the current residual got and preset threshold value comparison；
If the memory headroom of current residual is less than the threshold value, starts internal memory optimization mechanism, would not allow in running background
Process is closed.
The method of the smart television memory optimization, wherein the method further includes：
.mk files under modification device catalogues in advance, optimize the memory of the smart television, improve memory usage.
The method of the smart television memory optimization, wherein described when starting some application program, smart television obtains
The memory headroom of current residual is taken to specifically include：
The smart television receives the operational order of user, starts some application program；
The smart television calls corresponding program, obtains remaining memory headroom in current system.
The method of the smart television memory optimization, wherein the memory headroom by the current residual got with
Preset threshold value comparison specifically includes：
One threshold value is set in the smart television in advance, and the threshold value is for judging whether the memory headroom of current residual meets
User needs the service requirement of application program to be started；
The memory headroom of the current residual got is compared by the smart television with the threshold value.
The method of the smart television memory optimization, wherein if the memory headroom of the current residual is less than the threshold
Value, then start internal memory optimization mechanism, would not allow for the process in running background to close, further includes before releasing memory space：
One whitelist file is set in the smart television in advance, and the whitelist file allows for storing in running background
Process packet name.
The method of the smart television memory optimization, wherein described that a white name is set in the smart television in advance
Monofile specifically includes：
The smart television obtains process all in current system, and classifies to process；
According to the history service condition of the process, be divided into allow running background process and do not allow running background into
Journey；
The packet name in the process of running background will be allowed to store into the whitelist file, and preserved.
The method of the smart television memory optimization, wherein if the memory headroom of the current residual is less than the threshold
Value, then start internal memory optimization mechanism, would not allow for the process in running background to close, releasing memory space specifically includes：
If the memory headroom of current residual is less than the threshold value, the smart television obtains current just in the process of running background；
It obtains just in the packet name of the process of running background, and is matched with the packet name comparison being preset in whitelist file；
If the packet name just in the whitelist file described in the Bao Mingyu of the process of running background differs, judge that the process is not
Allow the process in running background；
The process in running background would not allow for close, releasing memory space.
The method of the smart television memory optimization, wherein if the memory headroom of the current residual is less than the threshold
Value, then start internal memory optimization mechanism, would not allow for the process in running background to close, releasing memory space further includes：
If the packet name just in the whitelist file described in the Bao Mingyu of the process of running background is identical, the process is judged to allow
In the process of running background, and controls the process and maintain operating status.
A kind of storage medium is stored thereon with a plurality of instruction, wherein and described instruction is suitable for being loaded and being executed by processor,
The step of method to realize smart television memory optimization described in any one of the above embodiments.
A kind of smart television, wherein including：Processor, the storage medium being connect with processor communication, the storage medium
Suitable for storing a plurality of instruction；The processor is suitable for calling the instruction in the storage medium, to execute realization any of the above-described
The step of method of the smart television memory optimization.
Beneficial effects of the present invention：Whether completely the present invention by being arranged the remaining memory headroom for judging smart television
Sufficient user needs the threshold value of the service requirement of application program to be started, to when free memory space is less than threshold value, not permitting
Perhaps it is closed in the process of running background, rapidly releases more free memories and used to system, make system run all right, protect
The problems such as interim card, stuck no response can be avoided the occurrence of with normal operation by demonstrate,proving smart television, random reboot.
Description of the drawings
Fig. 1 is the flow chart of the method preferred embodiment of the smart television memory optimization of the present invention.
Fig. 2 is the flow chart of the concrete application of the method for the smart television memory optimization of the present invention.
Fig. 3 is the functional schematic block diagram of the smart television of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Due to existing smart television, especially low memory Android TVs, after start-up, free memory space ratio
It is smaller, only tens, and so small memory makes the volume for being not enough to start some application program, starts some in user in this way
It just will appear interim card when application program, crash and even restart phenomenon, bring inconvenience to the user's use.It is above-mentioned in order to solve
Problem, the present invention provide a kind of method of smart television memory optimization, as shown in Figure 1, Fig. 1 is the smart television optimization of the present invention
The flow chart of the method preferred embodiment of memory.The method of the smart television memory optimization includes the following steps：
Step S100, when starting some application program, smart television obtains the memory headroom of current residual.
Preferably, the step S100 is specifically included：
The smart television receives the operational order of user, starts some application program；
The smart television calls corresponding program, obtains remaining memory headroom in current system.
When it is implemented, present invention is generally directed to be Android intelligent television, when user needs to open on smart television
When moving some application program, corresponding button operation is selected, sends enabled instruction to the smart television, smart television is receiving
Start the application program after to the enabled instruction.After the application program launching, at this point, the smart television will
Corresponding program is called to obtain remaining memory applications in current system.Specifically, when Android TVs start application program
When, it first passes through and calls Activity Manager .get Memory Info (Activity Manager .Memory Info)
Method obtains the memory headroom of current residual.
Further, step S200, by the memory headroom of the current residual got and preset threshold value comparison.
Preferably, the step S200 is specifically included：
One threshold value is set in the smart television in advance, and the threshold value is for judging whether the memory headroom of current residual meets
User needs the service requirement of application program to be started；
The memory headroom of the current residual got is compared by the smart television with the threshold value.
When it is implemented, a threshold value is arranged in the present invention in smart television first, user is judged by the threshold value of setting
Need application program to be started whether can normal operation, to be optimized to the memory of the smart television.Specifically, institute
It can be a memory value to state threshold value, will be described remaining interior after smart television gets the memory headroom of current residual
Deposit space with it is described it is prefabricated be compared, to judge the smart television after user starts the application program whether
It can also normal operation.The present invention prejudges application program operating condition by the way that the threshold value is arranged, in time to intelligence
The memory situation of TV optimizes processing, effectively reduces because of free memory insufficient space, causes application program normal
Operation, so that the frequently probability of the Low Memory Killer of triggering smart television, provides a convenient to the use of user.
Preferably, the present invention can also be modified the adj of Android TVs, the threshold value of minfree, to reduce intelligence
The probability of the Low Memory Killer of energy TV.Foreground process after change（FOREGROUND_APP, visual progression
（VISIBLE_APP), secondary service process（SECONDARY_SERVER), background process（HIDDEN_APP), Content supply section
Point（CONTENT_PROVIDER）And null process（EMPTY_APP) this 6 type process be corresponding in turn to change after adj and
Minfree parameters are as follows：
cat /sys/module/lowmemorykiller/parameters/adj
0,58,117,176,529,1000
cat /sys/module/lowmemorykiller/parameters/minfree
2977,3846,4715,5834,6703,8192
And 819,2/1,024 4=32M of *, it can be seen that when free memory is less than 32M, can kill priority is
1000 or more process can further reduce the probability of triggering Low Memory Killer in this way, user-friendly.
Further, if the memory headroom of the step S300, current residual are less than the threshold value, start internal memory optimization
Mechanism would not allow for the process in running background to close.
Preferably, the step S300 is specifically included：
If the memory headroom of current residual is less than the threshold value, the smart television obtains current just in the process of running background；
It obtains just in the packet name of the process of running background, and is matched with the packet name comparison being preset in whitelist file；
If the packet name just in the white list text described in the Bao Mingyu of the process of running background differs, judge that the process is not permit
Perhaps in the process of running background；
The process in running background would not allow for close, releasing memory space.
When it is implemented, after due to Android intelligent television start completion, there are many processes and service to be transported on backstage
Row, wherein having Partial Process and service need not be in running background, they, which can occupy a part of memory headroom and cause, be
System low memory.Therefore, in order to be preferably managed to the memory headroom of smart television, the present invention needs to pre-set one in vain
Name monofile.The predetermined packet name allowed in the process of running background is stored in the whitelist file.
Specifically, smart television can obtain process all in current system, and classify to process.The foundation of classification
The history service condition according to the process, be divided into allow running background process and do not allow running background into
Journey.For example, when the frequency of usage of a certain process in smart television is relatively high, then the process is arranged to allow in running background
Process the process is arranged to not allow the process in running background if the frequency of usage of some process is relatively low.When
The right present invention can also classify to process according to the function of the smart television, and smart television operation must be used
Process is arranged to allow the process in running background, and will not be the process to play an important role to the normal operation of smart television
It is arranged to not allow the process in running background.After classification is completed, the packet name in the process of running background will be allowed to store
Extremely in the whitelist file, and preserve.
Further, the memory headroom of current residual is less than the threshold value, and the smart television obtains current backstage
The process of operation.Then the packet name of the process just in running background is obtained, and is compared with the packet name being preset in whitelist file
Matching.If the packet name just in the white list text described in the Bao Mingyu of the process of running background differs, judge that the process is
The process in running background is not allowed；And then the process in running background would not allow for close, releasing memory space.
Specifically, the memory headroom of current residual is less than the threshold value（Such as 130MB）, smart television just passes through
Intent.get Component () .flatten To Short String () get the process being currently running
The packet name for getting the current process for starting operation is attached to Intent objects, most by packet name by putExtra methods
Afterwards by calling send Broadcast () method, the information that Intent objects carry is broadcasted.In another application
After program receives corresponding broadcast, handled on Receive methods.The packet name inside whitelist file is read first,
The current just in the packet of the process of running background of intent carryings is got by intent.get String Extra methods again
Name.Pass through (ActivityManager) this.get System Service (Context.ACTIVITY_SERVICE)；Come
Then the global situation of acquisition system calls get Running App Processes () method to can be obtained by current system
All processes being currently running.If it was found that in all processes that system is currently running in the packet name and whitelist file of certain processes
Packet name as, do not do any operation, maintain running state of a process；If it was found that certain in all processes that system is currently running
Process packet name and the packet name of white list are different, then can be by calling kill Back ground Processes methods these
Process is fallen to kill, smooth to make the application program that user needs to run run to discharge more memory headrooms.Due to this
The algorithm of the entire white list mechanism of invention is very simple, can soon release more memory headrooms and be used to system, whole
A system operation is very smooth.
Certainly, if finding to there is some process exactly starting in all processes that system is currently running in the present invention
The application program of operation（And user needs application program to be started）, then any operation is not done yet, maintains running state of a process.
Preferably, in order to make the operation of smart television more stablize, the present invention also changes under device catalogues in advance
.mk file optimizes the memory of the smart television, improves memory usage, such as adjusts Low_ram, KSM, ZRAM, kernel water
The buffer quantity of line, Low Memory Killer waterlines and surface.Specifically, by the switch of Low_ram
This prop of ro.config.low_ram is set as after true openings, and process does not use hardware rendering accelerating and then saves
Save memory.By the two prop of the ro.low_ram_zram of the switch of KSM and ZRAM and ro.low_ram_ksm, all
It is set as true, after zram is opened, system can compress the sluggish page in memory, be utilized to improve memory
ZRAM is dimensioned to 204796kb by rate；After ksm is opened, the meeting timing of ksm processes is scanned, by the page in memory
Table is migrated and is merged, to improve memory usage.In addition, the present invention also adjusts kernel OOM waterlines, Low Memory
Killer waterlines and the buffer quantity for changing surface, specially：
Change persist.sys.extraFreeKBytes=636
Change persist.sys.lmkMinFreeKBytes=32768
Change ro.config.layer_buffers_num=2
By the modification and adjustment of the above-mentioned memory field hardware system to smart television, keep the operation of smart television more steady
It is fixed.
Based on above-described embodiment, also a kind of embodiment of concrete application of the present invention, as shown in Fig. 2, the smart television is excellent
The method for changing memory includes the following steps：
Step S201, start application program.
Step S202, examine whether free memory meets threshold condition.If so, S203 is thened follow the steps, if it is not, then executing
Step S208.
Step S203, the packet name of whitelist file is read.
Step S204, for is recycled.If so, thening follow the steps S205；If it is not, thening follow the steps S208.
Step S205, judge the packet name of running background process whether inside white whitelist file.If so, thening follow the steps
S206, if it is not, thening follow the steps S207.
Step S206, it protects without any processing.
Step S207, kill falls releasing memory space.
Step S208, system normally starts application.
Based on above-described embodiment, the invention also discloses a kind of smart televisions, such as Fig. 3 to show, including：Processor
(processor) 10 the storage medium (memory) 20, being connect with processor 10；Wherein, the processor 10 is for calling institute
The program instruction in storage medium 20 is stated, to execute the method that above-described embodiment is provided, such as is executed：
When starting some application program, smart television obtains the memory headroom of current residual；
By the memory headroom of the current residual got and preset threshold value comparison；
If the memory headroom of current residual is less than the threshold value, starts internal memory optimization mechanism, would not allow in running background
Process is closed.
The embodiment of the present invention also provides a kind of storage medium, and computer instruction, the calculating are stored on the storage medium
Machine instruction makes computer execute the method that the various embodiments described above are provided.
In conclusion method, storage medium and the smart television of a kind of smart television memory optimization provided by the invention, institute
The method of stating includes：When starting some application program, smart television obtains the memory headroom of current residual；It is current by what is got
Remaining memory headroom and preset threshold value comparison；If the memory headroom of current residual is less than the threshold value, it is excellent to start memory
Change mechanism would not allow for the process in running background to close.The present invention is by being arranged for judging the remaining interior of smart television
Deposit whether space meets the threshold value that user needs the service requirement of application program to be started, to be less than threshold in free memory space
When value, not allowing the process in running background to close, rapidly releases more free memories and used to system, make system
It is stable, ensure that smart television can avoid the occurrence of interim card, stuck no response with normal operation, the problems such as random reboot.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of method of smart television memory optimization, which is characterized in that the method includes：
When starting some application program, smart television obtains the memory headroom of current residual；
By the memory headroom of the current residual got and preset threshold value comparison；
If the memory headroom of current residual is less than the threshold value, starts internal memory optimization mechanism, would not allow in running background
Process is closed, releasing memory space.
2. according to the method for the smart television memory optimization described in claim 1, which is characterized in that the method further includes：
.mk files under modification device catalogues in advance, optimize the memory of the smart television, improve memory usage.
3. according to the method for the smart television memory optimization described in claim 1, which is characterized in that described when startup, some is answered
When with program, the memory headroom that smart television obtains current residual specifically includes：
The smart television receives the operational order of user, starts some application program；
The smart television calls corresponding program, obtains remaining memory headroom in current system.
4. according to the method for the smart television memory optimization described in claim 1, which is characterized in that described to work as what is got
Preceding remaining memory headroom is specifically included with preset threshold value comparison：
One threshold value is set in the smart television in advance, and the threshold value is for judging whether the memory headroom of current residual meets
User needs the service requirement of application program to be started；
The memory headroom of the current residual got is compared by the smart television with the threshold value.
5. according to the method for the smart television memory optimization described in claim 1, which is characterized in that if the current residual
Memory headroom is less than the threshold value, then starts internal memory optimization mechanism, would not allow for the process in running background to close, releasing memory
Further include before space：
One whitelist file is set in the smart television in advance, and the whitelist file allows for storing in running background
Process packet name.
6. according to the method for the smart television memory optimization described in claim 5, which is characterized in that described in advance in the intelligence
A whitelist file is arranged in energy TV to specifically include：
The smart television obtains process all in current system, and classifies to process；
According to the history service condition of the process, be divided into allow running background process and do not allow running background into
Journey；
The packet name in the process of running background will be allowed to store into the whitelist file, and preserved.
7. according to the method for the smart television memory optimization described in claim 1, which is characterized in that if the current residual
Memory headroom is less than the threshold value, then starts internal memory optimization mechanism, would not allow for the process in running background to close, releasing memory
Space specifically includes：
If the memory headroom of current residual is less than the threshold value, the smart television obtains current just in the process of running background；
It obtains just in the packet name of the process of running background, and is matched with the packet name comparison being preset in whitelist file；
If the packet name just in the white list text described in the Bao Mingyu of the process of running background differs, judge that the process is not permit
Perhaps in the process of running background；
The process in running background would not allow for close, releasing memory space.
8. according to the method for the smart television memory optimization described in claim 7, which is characterized in that
If the memory headroom of the current residual is less than the threshold value, start internal memory optimization mechanism, would not allow for transporting on backstage
Capable process is closed, and releasing memory space further includes：
If the packet name just in the white list text described in the Bao Mingyu of the process of running background is identical, the process is judged to allow
The process of running background, and control the process and maintain operating status.
9. a kind of storage medium is stored thereon with a plurality of instruction, which is characterized in that described instruction is suitable for being loaded and being held by processor
The step of row, method to realize the claims 1-8 any one of them smart television memory optimizations.
10. a kind of smart television, which is characterized in that including：Processor, the storage medium being connect with processor communication, it is described to deposit
Storage media is suitable for storing a plurality of instruction；The processor is suitable for calling the instruction in the storage medium, above-mentioned to execute realization
The step of method of claim 1-8 any one of them smart television memory optimizations.
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