CN105843735A - Terminal memory consumption method and apparatus - Google Patents
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Abstract
The invention discloses a terminal memory consumption method. The method comprises the steps of creating n processes, wherein the (i+1)th process in the n processes is created by the ith process, n is a positive integer not less than 2, and i is a positive integer less than n; and consuming a memory of a terminal by utilizing the n processes to enable the terminal to be in a low-memory state. The invention furthermore provides a corresponding apparatus. According to the technical scheme, the terminal can quickly enter the low-memory state and is stably in the low-memory state.
Description
Technical field
The present invention relates to field of terminal technology, be specifically related to the consumption method and device of a kind of tag memory.
Background technology
At present, the development of mobile phone is the most fast, and along with mobile phone EMS memory is increasing, the performance of mobile phone is the most more come
The best.In order to ensure the performance of mobile phone, it usually needs mobile phone to be done various test.Wherein, sometimes, need
Mobile phone to be made is in low internal storage state, in order to do relevant low MEMTEST.
At present, it is typically employed in the substantial amounts of app of installation and operation in mobile phone (application, application program),
Such as use Android (Android) platform mobile phone in a large amount of apk of installation and operation (AndroidPackage,
Android installation kit), consume the internal memory of Android platform, make mobile phone be in low internal storage state.
Practice finds, this procedure is loaded down with trivial details, the longest, and unstable.
Summary of the invention
The embodiment of the present invention provides the consumption method and device of a kind of tag memory, so that terminal is rapidly achieved low
Internal storage state and stable be in low internal storage state.
For solving above-mentioned technical problem and reaching above-mentioned beneficial effect, the present invention provides disappearing of a kind of tag memory
Consumption method, including: creating n process, the i+1 process in described n process by the i-th process creation, n is
Positive integer not less than 2, i is the positive integer less than n；Described n process is utilized jointly to consume the internal memory of terminal,
Described terminal is made to be in low internal storage state.
The present invention also provides for a kind of device, including: process creation module, it is used for creating n process, described n
I+1 process in individual process is by the i-th process creation, and n is the positive integer not less than 2, and i is the positive integer less than n；
Memory management module, for utilizing described n process jointly to consume the internal memory of terminal, makes described terminal be in low
Internal storage state.
The present invention also provides for a kind of memorizer storing one or more program, when the one or more program
When being included the terminal execution of one or more processor, described terminal is made to perform in terminal as described above
The consumption method deposited.
The present invention also provides for a kind of terminal, including: one or more processors；Memorizer；Transceiver；Institute
State processor to be connected by bus with memorizer, when described terminal operating, deposit described in the execution of described processor
The program of reservoir storage, so that described terminal performs the consumption method of tag memory as described above.
Hinge structure, in some feasible embodiments of the present invention, terminal can create n process, and
I+1 process in n process is by the i-th process creation, i.e. this n process is to be created the 2nd by the 1st,
2nd creates the 3rd, until n-th, say, that this n process is chain type father and son's process, so,
On the one hand, terminal can be made quickly to reach low internal storage state, and scheme realizes simple；On the other hand, may be used
Greatly to reduce what some processes were killed by the low memory killer (low internal memory cleaning) of terminal Android platform
Risk, can make terminal steady is in low internal storage state.
Accompanying drawing explanation
In order to be illustrated more clearly that embodiment of the present invention technical scheme, below will be to required in description of the prior art
Accompanying drawing to be used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention's
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the consumption method of the tag memory that the embodiment of the present invention provides；
Fig. 2 is the particular flow sheet that in the embodiment of the present invention, terminal creates process；
Fig. 3 is a test design sketch of the embodiment of the present invention；
Fig. 4 is the structural representation of the consumer of the tag memory that the embodiment of the present invention provides；
Fig. 5 is the structural representation of the terminal that the embodiment of the present invention provides.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention program, implement below in conjunction with the present invention
Accompanying drawing in example, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that institute
The embodiment described is only the embodiment of a present invention part rather than whole embodiments.Based on this
Embodiment in bright, the institute that those of ordinary skill in the art are obtained under not making creative work premise
There are other embodiments, all should belong to the scope of protection of the invention.
As described in the background section, at present, it is typically employed in the substantial amounts of app of installation and operation in mobile phone, example
Such as a large amount of apk of installation and operation in the mobile phone using Android platform, consume the internal memory of Android platform,
Mobile phone is made to be in low internal storage state.
But, Android has a set of memory management mechanism, when mobile phone free memory is less than a certain threshold value, just
Low memory killer (low internal memory cleaning) mechanism can be triggered to clear up the process that some priority are relatively low, with
Releasing memory.Specifically, Android is a multitask system, say, that can run multiple simultaneously
Program；In general, one program of startup optimization has regular hour expense, therefore to add fast freight
Line speed, when exiting a program, Android can't kill it immediately, this journey of reruning such next time
During sequence, can startup quickly；Along with the program retained in system gets more and more, internal memory is certain to occur not
Foot, low memory killer is exactly when Installed System Memory is less than a certain threshold value, removes relevant program, ensures
System keeps having a number of free memory.
Low memory killer is retrievable according to two principles, the importance of process and this process of release
Free memory quantity, determines the process of release.Each program can have an oom_adj value, and this value is more
Little, program is the most important, and the probability killed is the lowest.It addition, under identical oom_adj, big the entering of internal memory
Journey, is preferentially killed.
Therefore, use the prior art a large amount of apk of installation and operation in Android platform, when consuming internal memory relatively
Time many, inevitably, some of them apk process can be killed, and the internal memory of these apk can be released, this
Result in, during making mobile phone be in low internal storage state by a large amount of apk of operation, it may appear that process is killed
The problem repeatedly being run again, process is comparatively laborious, arrives the time-consuming longer of low internal storage state, and once has
Process is killed and may will be exited low internal storage state, causes low internal storage state unstable.
For solving the problems referred to above, the embodiment of the present invention provides a kind of consumption method of tag memory and corresponding dress
Put, so that terminal is rapidly achieved low internal storage state and stable is in low internal storage state.
Below by specific embodiment, it is described in detail respectively.
Embodiment one,
Refer to Fig. 1, the embodiment of the present invention provides a kind of consumption method of tag memory, and the method is especially suitable
In the terminal of employing Android platform, such as mobile phone or panel computer etc., described method comprises the steps that
110, creating n process, the i+1 process in described n process is by the i-th process creation, and n is the least
In the positive integer of 2, i is the positive integer less than n；
120, utilize described n process jointly to consume the internal memory of terminal, make described terminal be in low internal storage state.
Wherein, described process is used for consuming internal memory, it is also possible to be referred to as memory consumption process.
Optionally, in some embodiments, described n process is the process of native program；Some other is implemented
In example, described n process can also be the process of other program.
Optionally, the execution route of described n native program can have the catalogue of shell authority, such as
The terminal of employing Android platform /data/local/tmp catalogue, this catalogue is the catalogue of shell authority.
Each catalogue of Android has corresponding authority, such as root (root, the highest) authority, system
(system) authority, shell (shell) authority etc..Example from above /authority of data/local/tmp catalogue is
Shell authority, shell authority is the lowest, and usual any data can put in, including using adb (Android
Debug Bridge, Android debugging bridge) push (propelling movement) enters, so the catalogue of selection shell authority,
The terminals such as conventional mobile phone can realize.
Certainly, the execution route of described n native program can also be put into other catalogues.If terminal is carried out
Root, it is thus achieved that higher root authority, then, the execution route of native program can also have root
The catalogue of authority, such as system/bin catalogue.
Or, the execution route of native program can also be in the catalogue with system authority.
Optionally, it is possible to use the pM internal memory in each process occupied terminal internal memory in described n process, p
Value the least, the risk that process is killed by low memory killer is the least, but in order to improve efficiency, p
Value again can not be the least, it is preferred that p=30 can be taken, i.e. for each course allocation 30M internal memory, or
Person, it is also possible to the value near 30 such as 20 or 25 etc..
Optionally, when described terminal is in low internal storage state, the test that low internal memory is relevant can be carried out.
Therefore, in embodiment of the present invention method, the technological means of employing specifically includes that
(1) described process can be the process of native program, say, that performing individuality is native program.
The realization of android system can be divided into multiple layer, including: java application, Java framework layer,
Native (local framework) layer, inner nuclear layer i.e. linux kernel space etc..The more common bases of this part of native layer
Ground service and some chained libraries etc..One feature of native is exactly typically to be realized by C and C Plus Plus.Ratio
As performed a complex calculation, if going to realize by java code, then efficiency can be the lowest, now
Can select to go to realize by C or C++ code, then communicate with the Java code on upper strata.The most such as terminal needs
Run, then must be mutual with the hardware driving of bottom, native layer to be passed through.
Owing to native program is between kernel and java program, therefore, native program has controllability, solely
The vertical feature such as property and stability, contributes to quick, stable carrying out memory consumption.Certainly, the most not
Limit the Program Type of described process, in implementing, it would however also be possible to employ the process of other type program.
(2) execution route of native program can be in/data/local/tmp catalogue, and this catalogue is shell authority,
Thus can use at Android user (user) version.
Android is divided into user (user) and eng (engineering) at least two version.Domestic consumer uses
It it is exactly typically Android user version.Owing to the execution route of native program is typically at/data/local/tmp mesh
Record, and this catalogue is shell authority.Shell is commonly called as shell, is used for being different from core, refers to " provide user to use
Interface " software (command analysis device).Owing to having shell authority, so, the embodiment of the present invention uses native
The process of program consumes the scheme of internal memory and just can employ at Android user version, thus convenient to general
Logical android terminal carries out low internal memory detection.
(3) multiple processes exhaust specified memory jointly, share the risk killed by low memory killer.
In the embodiment of the present invention, use multiple process jointly to consume internal memory, can share by low memory
The risk that killer kills.
(4) memory consumption process is chain type father and son's process, reduces the risk killed by low memory killer.
In the embodiment of the present invention, in n the process consuming internal memory, the 1st process generation the 2nd process, the 2nd
Process produces the 3rd process ... the i-th process produces i+1 process ..., in other words, process A produces process B, enters
Journey B produces process C, and process C produces process D, and by that analogy, all of n process is chain type father and son's process,
Mutually being correlated with, importance is essentially identical, and the oom_adj value of each process is essentially identical, does not has oom_adj
It is worth the lowest process, it is thus possible to be substantially reduced the risk killed by low memory killer.Need
Bright, each program of Android can have an oom_adj value, and this value is the least, and program is the most important,
The probability killed is the lowest.
(5) each memory consumption process comes occupied terminal internal memory, preferably p=30 by distribution pM internal memory.
In embodiment of the present invention preferred version, the internal memory of each process consumption can be of substantially equal, such as
For each course allocation 30M internal memory, in other words, the 30M internal memory in each process occupied terminal internal memory, this
Sample, it is to avoid Partial Process is killed more greatly and easily due to EMS memory occupation, multiple processes can be shared by low
The risk that memory killer kills.
Refer to Fig. 2, in some embodiments of the invention, terminal creates the particular flow sheet of n process, including:
S1, obtain threshold value desired_size set in advance (required size)；Desired_size represents
The memory size needed eventually, say, that run the size of the free memory after n process.
Optionally, described threshold value is defaulted as the threshold value of low memory killer.In different terminals, low
The threshold value of memory killer is probably different.
S2, judge that current free memory whether more than described threshold value, the most then enters step S3, otherwise
Terminate；
In this step, it is judged that whether current free memory (Free_RAMSize) is more than threshold value
Whether desired_size, i.e. judge Free_RAMSize > desired_size sets up, if set up, says
Bright free memory is excessive, not yet arrives low internal storage state, then need to enter step S3 and create memory consumption process.
Whereas if judge that current free memory is not more than described threshold value, illustrate that free memory is less,
Through arriving low internal storage state, it is not necessary to consume internal memory again, therefore need not be further continued for creating memory consumption process,
Flow process so far can terminate.
S3, establishment process, including: when currently without process, create the 1st process；I-th is had current
During process, utilize the i-th current process creation i+1 process.
In this step, create internal memory, it is readily appreciated that, when currently without process, terminal creates the 1st process；
Currently there iing process, and when current process is the i-th process, then utilizing the i-th current process creation i+1
Process, to realize the establishment of chain type father and son's process.Wherein, after often creating a process, such as, create the 1st
After process or i+1 process, the 1st process or i+1 process can be by such as malloc function to Android systems
System application a certain amount of internal memory such as 30M internal memory.
After this step completes the establishment of a process, return step S2, by judging that current free memory comes
Judging whether, already at low internal storage state, to continue flow process according to judged result, whole flow process is a while ()
Circulation process, finally judges when terminal is in low internal storage state, terminates flow process.Then, can proceed by
Relevant the testing of various low internal memories.
It should be noted that when above-mentioned threshold value is too small, if the internal memory continuing the process of establishment is excessive, have
The free memory that may make whole mobile phone becomes 0, causes mobile phone to crash or stuck.In order to avoid this situation, can
Choosing, the embodiment of the present invention can set a minima such as 100M, step S2 judges current sky
When not busy internal memory is more than described threshold value, also determine whether whether current free memory is more than 100M, if it is,
Just enter step S3, otherwise terminate.It is to say, to meet following two relational expression simultaneously:
Free_RAMSize>desired_size；
Free_RAMSize>100M；
Just enter step S3, create memory consumption process.
The internal memory of whole mobile phone so can be avoided to be totally consumed cause crashing or stuck.
It should be noted that the above-mentioned minima being set to 100M is merely illustrative, in actual application, it is also possible to more
Change other value such as 150M into, or 120M etc..
Herein, further it is shown that the result to embodiment of the present invention technical scheme:
Refer to the test design sketch shown in Fig. 3, in an application examples, it is assumed that mvg_app is memory consumption
The name of process, then the effect being finally reached is as shown in Figure 3.In Fig. 3: first dotted line frame is memory consumption
Process id of process；Second dotted line frame is parent process id of memory consumption process；3rd dotted line frame is each
The size of the committed memory of memory consumption process, about 30M.Visible, mobile phone can be made easily to reach
And stable it is in low internal storage state.
It is appreciated that embodiment of the present invention such scheme such as can be embodied as at terminal units such as mobile phones.
To sum up, hinge structure, in some feasible embodiments of the present invention, terminal creates n process,
And the i+1 process in n process is by the i-th process creation, i.e. this n process is to be created the 2nd by the 1st,
2nd creates the 3rd, until n-th, say, that this n process is chain type father and son's process, so,
On the one hand, terminal can be made quickly to reach low internal storage state, and scheme realizes simple；On the other hand, may be used
Greatly to reduce the probability that some processes are killed by the low memory killer of terminal Android platform, end can be made
Hold and stable be in low internal storage state；Another further aspect, described process can be the process of native program, so
Whole scheme can be applicable to Android user version.
In order to preferably implement the such scheme of the embodiment of the present invention, it is also provided below for coordinating enforcement above-mentioned
The relevant apparatus of scheme.
Embodiment two,
Refer to Fig. 4, the embodiment of the present invention provides the consumer of a kind of tag memory, it may include:
Process creation module 410, is used for creating n process, and the i+1 process in described n process is entered by i-th
Journey creates, and n is the positive integer not less than 2, and i is the positive integer less than n；
Memory management module 420, for utilizing described n process jointly to consume the internal memory of terminal, makes described end
End is in low internal storage state.
In some embodiments of the invention, described n process is the process of native program.
In some embodiments of the invention, the execution route of described native program is at the mesh with shell authority
Record.
In some embodiments of the invention, described process creation module 410 includes:
Acquiring unit, is used for obtaining threshold value set in advance；
Judging unit, for judging whether current free memory is more than described threshold value, if, it indicates that wound
Build unit and create process, otherwise terminate；
Described creating unit, for creating process when described judging unit is judged as YES, including: currently
When there is no process, create the 1st process；Current have the i-th process time, utilize the i-th current process creation the
I+1 process.
In some embodiments of the invention, described judging unit, specifically for judging that current free memory is
No more than described threshold value, the most then determine whether whether current free memory is more than 100M, if so,
Then instruction creating unit creates process, otherwise terminates, and wherein, described threshold value is the threshold of low memory killer
Value.
The consumer of embodiment of the present invention tag memory can be such as the terminal units such as mobile phone or can be
The functional entity run on terminal unit.
It is appreciated that the function of each functional module of the consumer of the tag memory of the embodiment of the present invention can
Implementing according to the method in said method embodiment, it implements process and can refer to said method enforcement
Associated description in example, here is omitted.
Therefore, in some feasible embodiments of the present invention, terminal creates n process, and n
I+1 process in process is by the i-th process creation, i.e. this n process is to be created the 2nd by the 1st, and the 2nd
Individual establishment the 3rd, until n-th, say, that this n process is chain type father and son's process, so, a side
Face, can make terminal quickly reach low internal storage state, and scheme realizes simple；On the other hand, Ke Yiji
The probability that big some processes of reduction are killed by the low memory killer of terminal Android platform, can make terminal steady
Fixed is in low internal storage state；Another further aspect, described process can be the process of native program, the most whole
Scheme can be applicable to Android user version.
Embodiment three,
The embodiment of the present invention also provides for a kind of memorizer storing one or more program, the one or more
Program includes the instruction performing the consumption of the tag memory as described in above-described embodiment, when the one or more
When program is included the terminal execution of one or more processor, described terminal is made to perform such as foregoing embodiments institute
The consumption of the tag memory stated.
Embodiment four,
Refer to Fig. 5, the embodiment of the present invention also provides for a kind of terminal 500, and this terminal 500 comprises the steps that
One or more processors 501；Memorizer 502；Bus 504；Transceiver 505；And one or many
Individual program 503, wherein said one or more programs be stored in described memorizer 502 and be configured to by
The one or more processor 501 performs, and the one or more program 503 includes for performing as above
The consumption method of the tag memory described in embodiment of the method.Wherein, described processor 501 can with memorizer 502
Connected by bus 504.When described terminal 500 is run, described processor 501 performs described memorizer 502
The described program 503 of storage, so that described terminal 500 performs the tag memory as described in embodiment of the method above
Consumption method.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment the most in detail
The thin part described, may refer to the associated description of other embodiments.
It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore it is all stated
For a series of combination of actions, but those skilled in the art should know, the present invention is not by described dynamic
The restriction of work order, because according to the present invention, some step can use other order or carry out simultaneously.
Secondly, those skilled in the art also should know, embodiment described in this description belongs to be preferable to carry out
Example, necessary to involved action and the module not necessarily present invention.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
The program that can be by completes to instruct relevant hardware, and this program can be stored in a computer-readable and deposit
In storage media, storage medium may include that ROM, RAM, disk or CD etc..
The consumption method and device of the tag memory provided the embodiment of the present invention above is described in detail,
Principle and the embodiment of the present invention are set forth by specific case used herein, above example
Method and the core concept thereof being only intended to help to understand the present invention is described；General simultaneously for this area
Technical staff, according to the thought of the present invention, the most all will change,
In sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. the consumption method of a tag memory, it is characterised in that including:
Creating n process, the i+1 process in described n process is by the i-th process creation, and n is not less than 2
Positive integer, i is the positive integer less than n；
Utilize described n process jointly to consume the internal memory of terminal, make described terminal be in low internal storage state.
Method the most according to claim 1, it is characterised in that
Described n process is the process of native program.
Method the most according to claim 2, it is characterised in that
The execution route of described native program is in the catalogue with shell authority.
Method the most according to claim 1, it is characterised in that described terminal creates n process, described
I+1 process in n process is included by the i-th process creation:
S1, obtain threshold value set in advance；
S2, judge that current free memory whether more than described threshold value, the most then enters step S3, otherwise
Terminate；
S3, establishment process, including: when currently without process, create the 1st process；I-th is had current
During process, utilize the i-th current process creation i+1 process；
Return step S2.
Method the most according to claim 4, it is characterised in that described step S2 specifically includes:
Judge that current free memory whether more than described threshold value, the most then determines whether the current free time
Whether internal memory more than 100M, the most then enters step S3, otherwise terminates；
Wherein, described threshold value is the threshold value of low internal memory cleaning low memory killer.
6. the consumer of a tag memory, it is characterised in that including:
Process creation module, is used for creating n process, and the i+1 process in described n process is by the i-th process
Creating, n is the positive integer not less than 2, and i is the positive integer less than n；
Memory management module, for utilizing described n process jointly to consume the internal memory of terminal, makes described end
In low internal storage state.
Device the most according to claim 6, it is characterised in that
Described n process is the process of native program.
Device the most according to claim 7, it is characterised in that
The execution route of described native program is in the catalogue with shell authority.
Device the most according to claim 6, it is characterised in that described process creation module includes:
Acquiring unit, is used for obtaining threshold value set in advance；
Judging unit, for judging whether current free memory is more than described threshold value, if, it indicates that wound
Build unit and create process, otherwise terminate；
Described creating unit, for creating process when described judging unit is judged as YES, including: currently
When there is no process, create the 1st process；Current have the i-th process time, utilize the i-th current process creation the
I+1 process.
Device the most according to claim 9, it is characterised in that
Described judging unit, specifically for judging whether current free memory is more than described threshold value, if so,
Then determine whether whether current free memory is more than 100M, if, it indicates that creating unit creates process,
Otherwise terminating, wherein, described threshold value is the threshold value of low internal memory cleaning low memory killer.
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| CN105843735B (en) | 2018-12-11 |
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