CN109634740A - EMS memory management process and device - Google Patents
EMS memory management process and device Download PDFInfo
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Abstract
This application provides a kind of EMS memory management process and devices.This method comprises: being adjusted according to the memory application result of current process to the memory application frequency of failure statistical value Z of the current process；When Z is more than preset frequency of failure threshold value, the current process is restarted.The application can avoid frequently restarting for process as far as possible.
Description
Technical field
This application involves field of computer technology, and more particularly, to a kind of EMS memory management process and device.
Background technique
For the program write using C/C++, due to lacking garbage reclamation (garbage collection, GC) machine
System, because without being recycled to the memory that process occupies, when the process generation memory overflow for executing the program that C/C++ writes
When, the memory that process occupies can be more and more, cause system operational speed slower and slower, Installed System Memory is resulted even in when serious
Exhaust (out of memory, OOM).
To solve the above problems, traditional scheme is using the cgroup mechanism in Linux system, (mechanism is in the form of packets
The behavior for the system resource that process uses is managed and is controlled) all processes are grouped, create multiple memory control
Group is arranged memory size for each memory control group, and is monitored in process operation to each memory control group, when some
(the process application memory in the group of memory control at this time loses when the memory usage amount of memory control group is more than the memory size of setting
Lose), it just forces to terminate the process in the memory control group, the memory that the process in the memory control group occupies is discharged, to keep away
Exempt from system and OOM occurs.
In traditional scheme, to memory as long as there is the case where primary application memory failure in the process in memory control group
Process in control group is restarted, it is likely that will cause frequently restarting for process.
Summary of the invention
The application provides a kind of EMS memory management process and device, to avoid frequently restarting for process as far as possible.
In a first aspect, a kind of EMS memory management process is provided, this method comprises: according to the memory application knot of current process
Fruit is adjusted the memory application frequency of failure statistical value Z of the current process；When Z is more than preset frequency of failure thresholding
When value, the current process is restarted.
It should be understood that current process can be the process executed using the C/C++ program write.
The above method can be executed by the processor in electronic equipment, which can specifically can be central processing
Unit (central processing unit, CPU).Specifically, the above method can be by the Memory management component in processor
To execute, wherein Memory management component is the equal of a software module in processor, for depositing into each process
Row management.
Above-mentioned frequency of failure threshold value can be obtained by analyzing the historical data of some processes.Specifically, can pass through
The corresponding memory application frequency of failure is analyzed when memory overflow occurs for some processes to determine.For example, by analyzing multiple processes
Historical data discovery, it is more than n times that memory application frequency of failure when memory overflow, which occurs, for each process, then N can be set
It is set to frequency of failure threshold value.
In the application, the number of the memory application failure by counting current process, and in the memory application frequency of failure
When statistical value reaches preset value, just current process is restarted, the mistake due to other processes can be avoided as far as possible and
The erroneous judgement generated when current process memory application being caused to fail, can reduce the frequent degree of process initiation as far as possible.
Specifically, if memory overflow occur in certain processes in current process, the memory meeting that these processes occupy
It is more and more, increasingly it is not easy application so as to cause other processes in current process to memory, so that current process
The memory application frequency of failure it is more and more, that is to say, that if memory overflow has occurred in current process, be just likely to lead
The memory application frequency of failure of current process is caused to increase.Therefore, can be sentenced according to the memory application frequency of failure of current process
Whether disconnected current process has occurred memory overflow, and in order to exclude in the current process as caused by other factors as far as possible
Process application memory failure, can the memory application frequency of failure of current process be more than preset threshold value in the case where
Current process is restarted.
With reference to first aspect, in certain implementations of first aspect, the memory application knot according to current process
Fruit is adjusted the memory application frequency of failure statistical value Z of the current process, comprising: in the current process application
When depositing unsuccessfully, Z=Z+1 is executed, to be updated to Z.
Above-mentioned execution Z=Z+1 refers to that the numerical value to current Z adds 1, and the numerical value obtained after adding 1 is as the updated number of Z
Value.
It should be understood that the numerical value of Z can be added 1 whenever current process application memory failure, to realize to Z more
Newly, in this case, what Z was indicated is exactly the current memory application frequency of failure of current process.
With reference to first aspect, in certain implementations of first aspect, the memory application to the current process
Frequency of failure statistical value Z is adjusted, comprising: when current process application memory success, obtains the current process
Current memory usage amount；When the current memory usage amount of the current process less than the second threshold value and is more than or equal to first
When threshold value, following adjustment is done to Z: in the case where Z is greater than preset recovery step-length S, executing Z=Z-S；Be less than in Z or
In the case where S, Z=0 is executed, wherein first threshold value is less than second threshold value.
Above-mentioned execution Z=Z-S refers to that the numerical value by current Z subtracts S, and will subtract the numerical value obtained after S as Z update after
Numerical value.
Above-mentioned execution Z=0 refers to that the numerical value by current Z is set to 0, and is used as the updated numerical value of Z for 0.
It should be understood that the possibility for memory overflow occur is smaller in the case where the memory usage amount of current process is less high, this
When there is memory application failure, it may be possible to operation error causes, can be in order to avoid occurring mistake when determining memory overflow
Z is modified, suitably to reduce the quantity of Z.
In the application, when the current memory usage amount of current process is not extra high, according to Z and it can restore to walk
Long size is modified Z, so as to more accurately determine whether current process is omitted according to Z.
Optionally, the memory usage amount of current process can refer to the currently used memory amount of current process and work as advance
The ratio of the memory amount of journey configuration, above-mentioned first memory threshold value and the second memory threshold value may be greater than 0 and less than 1
Numerical value.
Above-mentioned first memory threshold value and the second threshold value can be pre-set numerical value.For example, above-mentioned first memory
Threshold value can be 70%, and above-mentioned second memory threshold value can be such as 90%.
Optionally, the current memory usage amount of current process can also be the size for the memory that current process uses, at this point,
First threshold value and the second threshold value can be specific memory size numerical value.For example, the first threshold value can be set to 30M,
Second threshold value can be set to 200M.
With reference to first aspect, in certain implementations of first aspect, the memory application knot according to current process
Fruit is adjusted the memory application frequency of failure statistical value Z of the current process, comprising: in the current Shen of the current process
Please memory success, and in the case that the usage amount of the current memory of the current process is less than the first threshold value, execute Z=0.
It should be understood that occurring the reason of memory failure in the case where the memory usage amount of current process is very low is most likely behaviour
It makes mistakes, in order to avoid there is mistake when determining whether current process leaks according to Z, Z is directly set to 0.
With reference to first aspect, in certain implementations of first aspect, before the current process is restarted in determination, institute
State method further include: determine that T-Y is greater than preset time gate limit value, wherein T is current time, and Y is the current process first
Corresponding time statistical value when secondary application memory failure.
It, can more accurately really according to the memory application frequency of failure of the current process in interval of time in the application
It is fixed whether current process to be restarted.
With reference to first aspect, in certain implementations of first aspect, in the case where executing Z=0, the method is also
It include: to execute Y=0, to be modified to the Y.
Above-mentioned execution Y=0 refers to that the numerical value by current Y is set to 0, and is used as the updated numerical value of Y for 0.
With reference to first aspect, in certain implementations of first aspect, the method also includes: record is described when advance
The memory application information of journey, the memory application information include multiple sub- application informations, the multiple sub- application information with it is described
Multiple processes in current process correspond, and the multiple process is the application successful process of memory in the current process,
Any one sub-information in the multiple sub-information includes the memory application road of the corresponding process of any one described sub-information
Diameter and the memory size of application, the memory application information are used to determine the process that memory overflow occurs in current process.
Optionally, any one sub-information in above-mentioned multiple sub-informations includes the corresponding stream of any one described sub-information
The time of journey application memory.
In the application, by recording the memory application information of current process, convenient for being worked as according to memory application information positioning
The process of memory overflow occurs in preceding process.
With reference to first aspect, in certain implementations of first aspect, the method also includes: according to described when advance
The corresponding memory request times of process in journey and/or the memory size of the process application in the current process, to described more
A sub-information is ranked up.
Optionally, multiple sub-informations are ranked up, comprising: according to the corresponding memory application time of process in current process
It is several that multiple sub-informations are ranked up.
It specifically, can be according to the sequence of the corresponding memory request times of sub-information from big to small or from small to large to more
A sub-information is ranked up.
For example, the memory application information of current process includes sub-information 1, sub-information 2 and sub-information 3, sub-information 1 is corresponding
The memory request times of process are 30 times, and the memory request times of the corresponding process of sub-information 2 are 20 times, and sub-information 3 is corresponding
The memory request times of process are 10 times.So, the ranking results of these three sub-informations can be sub-information 1-- sub-information 2--
Sub-information 3 or sub-information 3-- sub-information 2-- sub-information 1.
Optionally, multiple sub-informations are ranked up, comprising: according to the memory size of the process application in current process,
Multiple sub-informations are ranked up.
For example, the memory application information of current process includes sub-information 1, sub-information 2 and sub-information 3, sub-information 1 is corresponding
The memory size of process application is 20M, and the memory size of the corresponding process application of sub-information 2 is 10M, the corresponding stream of sub-information 3
The memory size of journey application is 5M.So, the ranking results of these three sub-informations can be sub-information 1-- sub-information 2-- letter
Cease 3 or sub-information 3-- sub-information 2-- sub-information 1.
Optionally, described that multiple sub-informations are ranked up, comprising: corresponding interior according to the process in the current process
The memory size for depositing the process application in request times and the current process, is ranked up the multiple sub-information.
The memory of process application in comprehensive memory request times and current process according to the process in current process
When size is ranked up multiple sub-informations, ordering rule can be determined according to the size of memory, for example, any one process
It, can be according to memory request times according to from big to small or from small to large when memory usage amount is less than the 20% of default memory value
Sequence multiple sub-informations are ranked up, and be greater than the 20% of default memory value in the memory usage amount of any one process
When, multiple sub-informations can be ranked up according to sequence from big to small or from small to large according to the memory size of application.
In the application, by being ranked up to multiple sub-informations, convenient for the subsequent memory application information according to current process
Quickly determine the process that memory overflow occurs in current process.
Second aspect provides a kind of memory management device, which includes for executing first aspect
The module in method in various implementations.
The third aspect provides a kind of memory management device, including memory and processor, and the memory is for storing journey
Sequence, processor are used to execute the program of memory storage, and when the program of memory storage is performed, processor is for executing the
Method in the various implementations of one side.
Above-mentioned processing implement body can be CPU.
Fourth aspect, provide a kind of computer readable storage medium, computer-readable recording medium storage program
Code, wherein said program code includes the part for executing the method in any one implementation in first aspect
Or the instruction of Overall Steps.
5th aspect, provides a kind of computer program product, when the computer program product is run on computers,
So that the computer executes the instruction of some or all of the method in any one implementation in first aspect step.
Detailed description of the invention
Fig. 1 is the schematic flow chart of the EMS memory management process of the embodiment of the present application；
Fig. 2 is the schematic flow chart of the EMS memory management process of the embodiment of the present application；
Fig. 3 is the schematic block diagram of the Memory management component in the embodiment of the present application；
Fig. 4 is the schematic block diagram of the memory management device of the embodiment of the present application；
Fig. 5 is the schematic block diagram of the memory management device of the embodiment of the present application.
Specific embodiment
Below in conjunction with attached drawing, the technical solution in the application is described.
In the operational process of process, if there is memory overflow in certain processes of the process, these processes account for
Memory can be more and more, and application is increasingly not easy so as to cause other processes in the process to memory, so that working as
The memory application frequency of failure of preceding process is more and more, that is to say, that if memory overflow has occurred in current process, just very
The memory application frequency of failure that may cause current process increases.Therefore, a kind of method that managing internal memory is proposed in the application,
In this method, can be judged according to the memory application frequency of failure of current process current process whether have occurred memory overflow into
And decide whether to restart current process, and in order to exclude other factors as far as possible (for example, program execution error is led
Current process application memory failure is caused, alternatively, certain processes in current process do not have releasing memory to lead to current process application
Memory failure, alternatively, the subprocess of current process occupies the memory of current process, so that the memory usage amount of current process is more than
Preset value is so as to cause current process application memory failure) caused by process application memory failure in current process the case where send out
It is raw, current process can be determined in the case where the memory application frequency of failure of current process is more than preset threshold value
Memory overflow, and then current process is restarted in determination.
It is described in detail below with reference to EMS memory management process of the Fig. 1 to the embodiment of the present application.
Fig. 1 is the schematic flow chart of the EMS memory management process of the embodiment of the present application.Method shown in FIG. 1 can be by electronics
Processor (processor can be CPU) Lai Zhihang in equipment, specifically, method shown in FIG. 1 can be by processor
Software module (for example, Memory management component) Lai Zhihang.Method shown in FIG. 1 includes step 101 and step 102, below to step
Rapid 101 and step 102 be described in detail.
101, according to the memory application result of current process, to the memory application frequency of failure statistical value Z of current process into
Row adjustment.
It should be understood that current process can be a process comprising multiple processes, each process in multiple process
Apply for memory, therefore, in a step 101, being adjusted according to the memory application result of current process to Z may be considered root
Z is adjusted according to the memory application result of the process in current process.In the memory application according to the process in current process
When being as a result adjusted to Z, it can be in wherein any one process application memory all according to the memory application knot of the process
Fruit is adjusted Z.
Optionally, current process can be the process executed using the C/C++ program write.
The memory application result of current process may include whether current process application memory successful (or failing),
It also may include the current memory usage amount of current process.That is, in a step 101 can be according in current process application
Deposit whether one of successful and current process current memory usage amount (current process application memory whether successful or root
According to the current memory usage amount of current process) or all (whether comprehensive current process application memory succeeds and current process
Current memory usage amount) Z be adjusted or modify.
Wherein, whether the whether successful process application memory that can specifically refer in current process of current process application memory
Success.
It in a step 101, can be when advance when whether being successfully adjusted to Z according to current process application memory
The numerical value of Z is added 1 when journey memory application fails, and keeps the numerical value of Z constant in current process memory application success, to realize
Adjustment to Z.
Optionally, according to the memory application result of current process, to the memory application frequency of failure statistical value Z of current process
It is adjusted, comprising: in current process application memory failure, Z=Z+1 is executed, to be updated to Z.
Wherein, current process application memory failure can be in current process and lose in some process application memory of operation
It loses, at this time it is considered that current process application memory failure, Z is needed to be implemented plus 1 operation.
It in this application, can be when current process applies for memory failure every time, to Z execution plus 1 operation, and current
When process applies for memory success every time, keep the numerical value of Z constant, in this case, Z reflection is current process from starting to hold
The summation of the capable memory application frequency of failure to current time.
In this application, the numerical value of Z can also also be carried out centainly in the successful situation of current process memory application
Adjustment.It is described in detail below to the case where being adjusted in the successful situation of current process application memory to Z.
Optionally, the memory application frequency of failure statistical value Z of current process is adjusted, comprising: in current process Shen
Please memory success when, obtain the current memory usage amount of current process；Current process current memory usage amount less than second
Threshold value and be more than or equal to the first threshold value when, following adjustment is done to Z: Z be greater than preset recovery step-length S the case where
Under, execute Z=Z-S；In the case where Z is less than or equal to S, Z=0 is executed.
Wherein, above-mentioned first threshold value is less than the second threshold value.
In the memory usage amount of current process, less high (memory usage amount is in a higher numerical value and one lower
Between numerical value) in the case where, the possibility that memory overflow occurs in current process is smaller, occurs memory application failure at this time, it is possible to
It is that operation error causes, in order to avoid there is mistake when determining whether current process occurs memory overflow, Z can be repaired
Just, suitably to reduce the quantity of Z.
In the application, when the current memory usage amount of current process is not extra high, according to Z and it can restore to walk
Long size is modified Z, so as to more accurately determine whether current process is omitted according to Z.
The memory usage amount of current process can refer to that the currently used memory amount of current process and current process configure
Memory amount ratio, above-mentioned first memory threshold value and the second memory threshold value may be greater than 0 and the numerical value less than 1.
Above-mentioned first memory threshold value and the second threshold value can be pre-set numerical value.For example, above-mentioned first memory
Threshold value can be 70%, and above-mentioned second memory threshold value can be such as 90%.
The current memory usage amount of current process can also be the size for the memory that current process uses, at this point, first
Limit value and the second threshold value can be specific memory size numerical value.For example, the first threshold value can be set to 30M, second
Limit value can be set to 200M.
And when the memory usage amount of current process is very low, current process occur memory overflow a possibility that very little, at this time
Memory overflow occurs to be likely due to caused by operation error, therefore, in order to avoid determining current process according to Z mistake
The numerical value of Z can be set to 0 by memory overflow.
Optionally, according to the memory application result of current process, to the memory application frequency of failure statistical value Z of current process
It is adjusted, comprising: in the success of current process present application memory, and the usage amount of the current memory of current process is less than the
In the case where one threshold value, Z=0 is executed.
It,, can be to avoid according to the number of Z by the way that Z is set to 0 when the memory usage amount of current process is very low in the application
Memory overflow occurs for value false judgment current process, can be improved the accuracy of determining memory overflow.
102, when Z is more than preset frequency of failure threshold value, restart current process.
Above-mentioned frequency of failure threshold value can be obtained by analyzing the historical data of some processes.Specifically, can pass through
The corresponding memory application frequency of failure is analyzed when memory overflow occurs for some processes to determine, passes through the history of the multiple processes of analysis
Number is it has been found that it is more than n times that memory application frequency of failure when memory overflow, which occurs, for each process, then N can be set as losing
Lose number threshold value.
In the application, the number of the memory application failure by counting current process, and in the memory application frequency of failure
When statistical value reaches preset value, just current process is restarted, the mistake due to other processes can be avoided as far as possible and
The erroneous judgement generated when current process memory application being caused to fail, can reduce the frequent degree of process initiation as far as possible.
In this application, in order to more accurately judge whether current process restarts, it can be combined with the time to integrate determination
Whether current process is restarted.It specifically, is more than frequency of failure thresholding in the memory application frequency of failure of current process
It can not know current process when value first temporarily and memory overflow has occurred, but can first wait for a period of time (in this period
The interior memory assumed certain processes and release occupancy, then the memory application frequency of failure of current process may decline), if
Be more than this section of time current process the memory application frequency of failure still above frequency of failure threshold value so it can be assumed that
Memory overflow has occurred in current process, and then restarts to current process.
Optionally, before restarting current process, method shown in FIG. 1 further include: determine that T-Y is greater than preset time gate
Limit value, wherein T is current time, Y corresponding time statistical value when being current process first application memory failure.
It, can more accurately really according to the memory application frequency of failure of the current process in interval of time in the application
It is fixed whether current process to be restarted, further, according to the memory application failure time of current process in interval of time
Number determines whether current process leaks, so that current process is only more than to lose in the memory application frequency of failure of current process
It loses that number threshold value is super after a period of time just to restart current process, the frequent of process initiation can be reduced as far as possible
Degree.
Optionally, in the case where executing Z=0, method shown in FIG. 1 further include: Y=0 is executed, to be modified to Y.
In the application, in the case where Z sets 0, Y is also set to 0, Y and Z are matched, is convenient for subsequent accurate judgement
Whether current process occurs memory overflow.
Below to the case where adjustment of Z and Y is described in detail in different situations in the application.
Wherein, the case where situation 1 is current process application memory failure, situation 2 to situation 4 are current process application memories
Successful situation.These situations are described in detail below.
Situation 1:alloc ()==0, execute Z=Z+1.
Wherein, alloc () is the function for applying for memory, alloc ()==0 expression application memory failure, when application memory
The numerical value of Z is added 1 when failure.
In addition, in situation 1, if current process first application memory failure, is carried out Y=t, wherein t is
Time when current process first application memory failure.
Situation 2:alloc ()！=0, and x/mem_total > mem_threshold_high, then, keep Z's and Y
Numerical value is constant.
Wherein, x indicates the memory usage amount of current process, and mem_total is expressed as the memory amount of current process configuration,
Mem_threshold_high indicates that memory threshold 2, memory threshold 2 are that memory uses abnormal high threshold.
Situation 3:alloc ()！=0, x/mem_total < mem_threshold_high, and x also meets x/mem_
Total > mem_threshold_low, then, Z=Z-step (Y is remained unchanged at this time) is executed as Z > step, as Z≤step
When, Y and Z are set to 0.
Wherein, mem_threshold_low indicates memory threshold 1, and memory threshold 1 is memory using abnormal Low threshold, interior
Threshold value 1 is deposited less than memory threshold 2.
Situation 4:alloc ()！=0, and x/mem_total < mem_threshold_low, then, Y and Z is set to
0。
Relevant parameter of the above situation 1 into situation 4 is illustrated below.
Mem_total: indicate that the size of total memory of Memory management component management (is also allocated to the total interior of current process
Deposit size), it can be using the product of the maximum value of the memory of normal use and redundancy ratio 1 (such as 1.5) as mem_total；
Mem_threshold_low: can be by the maximum value of the memory of normal use and (the redundancy ratio 2 one of redundancy ratio 2
As be less than redundancy ratio 1, for example, redundancy ratio can take product 1.2) as mem_threshold_low；
Mem_threshold_high: can be by the maximum value of the memory of normal use and (the redundancy ratio 3 of redundancy ratio 3
Generally higher than redundancy ratio 2, for example, redundancy ratio 3 can take product 1.4) as mem_threshold_high.
In order to determine the process that memory overflow occurs in current process, the memory letter of application of current process can also be recorded
Breath, which may include memory application path, the memory size of application and time of application etc..
Optionally, method shown in FIG. 1 further include: record the memory application information of current process, memory application information packet
Multiple sub- application informations are included, multiple processes in multiple sub- application information and current process correspond, and multiple process is
Apply for the successful process of memory in current process, any one sub-information in multiple sub-informations includes any one sub-information pair
The memory application path for the process answered and the memory size of application, memory application information is for determining in current process in generation
Deposit the process of leakage.
It should be understood that after obtaining above-mentioned memory application information, can by manually analyzing memory application information, with
It determines the process that memory overflow occurs in current process, is also possible to processor and (place is analyzed to above-mentioned memory application information
Device is managed when analyzing above-mentioned memory application, it can be by the way of being similar to machine learning to above-mentioned memory application information
Analyzed), to determine the process that memory overflow occurs in current process.
In the application, by recording the memory application information of current process, convenient for the subsequent memory Shen according to current process
Please information determine in current process occur memory overflow process.
In order to better and more conveniently be determined according to the memory application information of current process in current process in generation
Deposit the process of leakage, can also the memory application information to current process be ranked up.
It should be understood that when being ranked up to multiple sub-informations, it can be only according to the corresponding memory of process in current process
Request times are ranked up multiple sub-informations.
It specifically, can be according to the sequence of the corresponding memory request times of sub-information from big to small or from small to large to more
A sub-information is ranked up.
For example, the memory application information of current process includes sub-information 1, sub-information 2 and sub-information 3, sub-information 1 is corresponding
The memory request times of process are 30 times, and the memory request times of the corresponding process of sub-information 2 are 20 times, and sub-information 3 is corresponding
The memory request times of process are 10 times.So, the ranking results of these three sub-informations can be sub-information 1-- sub-information 2--
Sub-information 3 or sub-information 3-- sub-information 2-- sub-information 1.
It should be understood that when being ranked up to multiple sub-informations, it can be only according to the memory size of application, to the multiple son
Information is ranked up.
For example, the memory application information of current process includes sub-information 1, sub-information 2 and sub-information 3, sub-information 1 is corresponding
The memory size of process application is 20M, and the memory size of the corresponding process application of sub-information 2 is 10M, the corresponding stream of sub-information 3
The memory size of journey application is 5M.So, the ranking results of these three sub-informations can be sub-information 1-- sub-information 2-- letter
Cease 3 or sub-information 3-- sub-information 2-- sub-information 1.
It should also be understood that the memory according to the process in current process can be integrated when being ranked up to multiple sub-informations
The memory size of process application in request times and current process is ranked up multiple sub-informations.
The memory of process application in comprehensive memory request times and current process according to the process in current process
When size is ranked up multiple sub-informations, ordering rule can be determined according to the size of memory, for example, any one process
It, can be according to memory request times according to from big to small or from small to large when memory usage amount is less than the 20% of default memory value
Sequence multiple sub-informations are ranked up, and be greater than the 20% of default memory value in the memory usage amount of any one process
When, multiple sub-informations can be ranked up according to sequence from big to small or from small to large according to the memory size of application.
In the application, by being ranked up to multiple sub-informations, convenient for the subsequent memory application information according to current process
Quickly determine the process that memory overflow occurs in current process.
After obtaining the memory application information of current process, it can judge to work as according to the memory application information of current process
The process of memory overflow occurs in preceding process.Judge in current process below with reference to specific example according to memory application information
The process that memory overflow occurs is illustrated.
For example, the memory application information of current process includes sub-information 1, sub-information 2, sub-information 3 and sub-information 4,
In, sub-information 1 to sub-information 4 is had recorded respectively in the process 1 in current process to the memory application path of process 4 and application
Deposit size, it is assumed that process 1 applies for that the number of memory is most, and the memory applied is maximum, it is possible to assert in current process
Process 1 memory overflow has occurred.
The EMS memory management process of the embodiment of the present application in order to better understand, below with reference to Fig. 2 to the embodiment of the present application
EMS memory management process is described in detail.
Fig. 2 is the schematic flow chart of the EMS memory management process of the embodiment of the present application.Method shown in Fig. 2 can be by electronics
Processor (processor can be CPU) Lai Zhihang in equipment, specifically, method shown in Fig. 2 can be by processor
Software module (for example, Memory management component) Lai Zhihang.Method shown in Fig. 2 includes step 201 to step 211, below to this
A little steps are described in detail.
201, the memory application result of current process is obtained.
The memory application result of current process may include whether current process application memory successful (or failing),
It also may include the current memory of current process using total amount.
For example, the process that current process is currently executing is process 1, then, the memory application result of current process can
To include that process 1 applies for that the current memory of memory failure and current process uses total amount.
202, determine whether current process present application memory fails.
If current process present application memory failure thens follow the steps 203, if be saved as in current process present application
Function thens follow the steps 204.
For example, the process that current process is currently executing is process 1, then, it is just held when process 1 applies for memory failure
Row step 203 executes step 204 when process 1 applies for memory success.
203, Z=Z+1 is executed.
Alternatively, Z++ can also be executed, in step 203 to realize the operation for adding 1 to Z.
204, the current memory usage amount of current process is obtained.
It, can be according to the current interior of current process after step 204 gets the current memory usage amount of current process
It deposits the different of usage amount and executes step 205 or step 206.
205, when the current memory usage amount of current process is less than the first threshold value, Z=0 is executed.
Above-mentioned first threshold value can be a lower numerical value, current process current memory usage amount less than first
When threshold value, it is believed that current process current memory usage amount very little, and the feelings very low in the memory usage amount of current process
Occurring the reason of memory failure under condition is most likely operation error, in order to avoid determining whether current process lets out according to Z
Occur mistake when leakage, Z is directly set to 0.
For example, Z is set to 0 when the current memory usage amount of current process is less than 20%.
206, less than the second threshold value and it is more than or equal to the first thresholding in the current memory usage amount of current process
When value, the numerical value of Z is reduced.
In step 206, the first threshold value is less than the second threshold value.In addition, in step 206, tool when reducing the numerical value of Z
Body can execute step 207 or step 208 according to the relationship of Z and recovery step-length S.
207, when Z, which is greater than, restores step-length S, Z=Z-S is executed.
208, when Z is less than or equal to S, Z=0 is executed.
209, determine whether to restart current process according to the numerical value of Z.
Specifically, in step 209, it when the numerical value of Z is more than preset frequency of failure threshold value, can determine when advance
There is memory overflow in journey, and then restarts current process.
Alternatively, can also integrate according to the memory application frequency of failure of time and current process whether determine current process
There is memory overflow, it specifically, can be temporary when the memory application frequency of failure of current process is more than frequency of failure threshold value
When do not know current process first memory overflow have occurred, but can first wait for a period of time and (during this period of time assume certain
Process releases the memory of occupancy, then the memory application frequency of failure of current process may decline), the section if more than
The memory application frequency of failure of time current process is still above frequency of failure threshold value so it can be assumed that current process is sent out
Memory overflow has been given birth to, and then has restarted current process.
210, memory application information is recorded according to the memory application result of current process.
Above-mentioned steps 210 can execute after step 201, and step 210 can be executed prior to step 202-209,
It can also be executed later in step 202-209, alternatively, step 210 can also be held simultaneously during executing step 202-209
Row.
Above-mentioned memory application information may include memory application path, the memory size of application and time of application etc.
Deng.Above-mentioned memory application information can be used for determining the process that memory overflow occurs in current process.
After obtaining above-mentioned memory application information, it can be worked as by manually analyzing memory application information with determination
The process that memory overflow occurs in preceding process, is also possible to processor and is analyzed above-mentioned memory application information that (processor exists
When analyzing above-mentioned memory application, above-mentioned memory application information can be divided by the way of being similar to machine learning
Analysis), to determine the process that memory overflow occurs in current process.
211, memory application information is ranked up, the memory application information after being sorted.
It should be understood that the EMS memory management process of the embodiment of the present application can be executed by the Memory management component in processor, under
Face combines Fig. 3 that the related content of Memory management component is described.
Fig. 3 shows the schematic block diagram of Memory management component.As shown in figure 3, Memory management component can be read by configuration
Unit, memory application adaptation unit, memory application releasing unit, debugging unit and analysis of strategies unit is taken to constitute.It is right below
Effect of these units in the correlated process in the EMS memory management process of the embodiment of the present application is described in detail.
Configuration reading unit: being deployed in Memory management component, and after process operation, Memory management component loads for the first time
When, read configurable policy information, these policy informations may include process can to operating system application total memory it is big
Small, memory (is equivalent to above using abnormal Low threshold (being equivalent to the first threshold value above), memory using abnormal high threshold
In the second threshold value), memory application frequency of failure threshold value (being equivalent to frequency of failure threshold value above), memory application hold
Continuous Time To Failure threshold value (being equivalent to time gate limit value above).
Memory application adaptation unit: for shielding linux, the application difference of the Installed System Memories such as widows, and advance to work as
Journey provides unified memory application interface.
Memory application releasing unit: memory application service is provided for current process.
Debugging unit: in the memory of application, the information such as record memory application path, size, time, and will be in application
Extension is deposited into chained list.
Analysis of strategies unit: judging whether memory application succeeds, and whether determines current process according to the application frequency of failure
Memory overflow occurs.
It is described in detail above in association with EMS memory management process of the Fig. 1 and Fig. 2 to the embodiment of the present application, below with reference to
The memory management device of the embodiment of the present application is described in detail in Fig. 4 and Fig. 5.It should be understood that the memory pipe in Fig. 4 and Fig. 5
Reason device can execute each step in the method in Fig. 1 and Fig. 2, above same to the restriction of related content and explanation suitable
For the memory management device in Fig. 4 and Fig. 5, carried out below with reference to memory management device of the Fig. 4 and Fig. 5 to the embodiment of the present application
Description.
Fig. 4 is the schematic block diagram of the memory management device of the embodiment of the present application.Device 1000 shown in Fig. 4 includes:
Adjust module 1001, the memory application for the memory application result according to current process, to the current process
Frequency of failure statistical value Z is adjusted；
Processing module 1002, for restarting the current process when Z is more than preset frequency of failure threshold value.
In the application, the number of the memory application failure by counting current process, and in the memory application frequency of failure
When statistical value reaches preset value, just current process is restarted, the mistake due to other processes can be avoided as far as possible and
The erroneous judgement generated when current process memory application being caused to fail, can reduce the frequent degree of process initiation as far as possible.
Optionally, as one embodiment, the adjustment module 1001 is used for: in the current process application memory failure
When, Z=Z+1 is executed, to be updated to Z.
Optionally, as one embodiment, the adjustment module 1001 is used for: when current process application memory success
When, obtain the current memory usage amount of the current process；When the current memory usage amount of the current process is less than second
Limit value and be more than or equal to the first threshold value when, following adjustment is done to Z: Z be greater than preset recovery step-length S in the case where,
Execute Z=Z-S；In the case where Z is less than or equal to S, Z=0 is executed, wherein first threshold value is less than described second
Threshold value.
Optionally, as one embodiment, the adjustment module 1001 is used for: in the current process present application memory
Success, and in the case that the usage amount of the current memory of the current process is less than the first threshold value, execute Z=0.
Optionally, as one embodiment, before restarting current process, the processing module 1002 is also used to: being determined
T-Y is greater than preset time gate limit value, wherein T is current time, when Y is the current process first application memory failure
Corresponding time statistical value.
Optionally, as one embodiment, in the case where executing Z=0, the adjustment module 1001 is also used to: executing Y
=0, to be modified to the Y.
Optionally, as one embodiment, the processing module 1002 is also used to: recording the memory Shen of the current process
Please information, the memory application information includes multiple sub- application informations, in the multiple sub- application information and the current process
Multiple processes correspond, the multiple process be in the current process application the successful process of memory, the multiple son
Any one sub-information in information includes memory application path and the application of the corresponding process of any one described sub-information
Memory size, the memory application information be used for determine in current process occur memory overflow process.
Optionally, as one embodiment, the processing module 1002 is also used to: according to the process in the current process
The memory size of process application in corresponding memory request times and/or the current process, to the multiple sub-information into
Row sequence.
Fig. 5 is the schematic block diagram of the memory management device of the embodiment of the present application.Device 2000 shown in fig. 5 includes:
Memory 2001, for storing program；
Processor 2002, for executing the program stored in memory 2001, when the program quilt stored in memory 2001
When processor 2002 executes, processor 2002 is used for: according to the memory application result of current process, in the current process
Application frequency of failure statistical value Z is deposited to be adjusted；When Z is more than preset frequency of failure threshold value, the current process is restarted.
In the application, the number of the memory application failure by counting current process, and in the memory application frequency of failure
When statistical value reaches preset value, current process can just be restarted, the mistake due to other processes can be avoided as far as possible
And the erroneous judgement generated when current process memory application being caused to fail, the frequent degree of process initiation can be reduced as far as possible.
Optionally, as one embodiment, the processor 2002 is used for: in the current process application memory failure
When, Z=Z+1 is executed, to be updated to Z.
Optionally, as one embodiment, the processor 2002 is used for: when current process application memory success
When, obtain the current memory usage amount of the current process；When the current memory usage amount of the current process is less than second
Limit value and be more than or equal to the first threshold value when, following adjustment is done to Z: Z be greater than preset recovery step-length S in the case where,
Execute Z=Z-S；In the case where Z is less than or equal to S, Z=0 is executed, wherein first threshold value is less than described second
Threshold value.
In the application, when the current memory usage amount of current process is not extra high, according to Z and it can restore to walk
Long size is modified Z, so as to more accurately determine whether current process is omitted according to Z.
Optionally, as one embodiment, the processor 2002 is used for: being saved as in the current process present application
Function, and in the case that the usage amount of the current memory of the current process is less than the first threshold value, execute Z=0.
Optionally, as one embodiment, before restarting the current process, the processor 2002 is also used to: really
T-Y is determined greater than preset time gate limit value, wherein T is current time, and Y is the current process first application memory failure
When corresponding time statistical value.
It, can more accurately really according to the memory application frequency of failure of the current process in interval of time in the application
Determine whether current process memory overflow occurs.
Optionally, as one embodiment, in the case where executing Z=0, the processor 2002 is also used to: executing Y=
0, to be modified to the Y.
Optionally, as one embodiment, the processor 2002 is also used to: recording the memory application of the current process
Information, the memory application information include multiple sub- application informations, in the multiple sub- application information and the current process
Multiple processes correspond, and the multiple process is the application successful process of memory, the multiple sub- letter in the current process
Any one sub-information in breath includes memory application path and the application of the corresponding process of any one described sub-information
Memory size, the memory application information are used to determine the process that memory overflow occurs in current process.
In the application, by recording the memory application information of current process, convenient for being worked as according to memory application information positioning
The process of memory overflow occurs in preceding process.
Optionally, as one embodiment, the processor 2002 is also used to: according to the process pair in the current process
The memory size for the process application in memory request times and/or the current process answered carries out the multiple sub-information
Sequence.
In the application, by being ranked up to multiple sub-informations, convenient for the subsequent memory application information according to current process
Quickly determine the process that memory overflow occurs in current process.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (read-only memory, ROM), arbitrary access are deposited
The various media that can store program code such as reservoir (random access memory, RAM), magnetic or disk.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.
Claims (16)
1. a kind of EMS memory management process characterized by comprising
According to the memory application result of current process, the memory application frequency of failure statistical value Z of the current process is adjusted
It is whole；
When Z is more than preset frequency of failure threshold value, the current process is restarted.
2. the method as described in claim 1, which is characterized in that the memory application result according to current process, to described
The memory application frequency of failure statistical value Z of current process is adjusted, comprising:
In the current process application memory failure, Z=Z+1 is executed, to be updated to Z.
3. method according to claim 1 or 2, which is characterized in that the memory application failure time to the current process
Number statistical value Z is adjusted, comprising:
When current process application memory success, the current memory usage amount of the current process is obtained；
It is right when the current memory usage amount of the current process is less than the second threshold value and is more than or equal to the first threshold value
Z does following adjustment:
In the case where Z is greater than preset recovery step-length S, Z=Z-S is executed；
In the case where Z is less than or equal to S, Z=0 is executed, wherein first threshold value is less than second threshold value.
4. method as claimed in any one of claims 1-3, which is characterized in that the memory application knot according to current process
Fruit is adjusted the memory application frequency of failure statistical value Z of the current process, comprising:
In current process present application memory success, and the usage amount of the current memory of the current process is less than first
In the case where threshold value, Z=0 is executed.
5. such as method of any of claims 1-4, which is characterized in that described before restarting the current process
Method further include:
Determine that T-Y is greater than preset time gate limit value, wherein T is current time, and Y is in the current process first application
Corresponding time statistical value when depositing unsuccessfully.
6. method as claimed in claim 5, which is characterized in that in the case where executing Z=0, the method also includes:
Y=0 is executed, to be modified to the Y.
7. such as method of any of claims 1-6, which is characterized in that the method also includes:
The memory application information of the current process is recorded, the memory application information includes multiple sub- application informations, described more
Multiple processes in a sub- application information and the current process correspond, and the multiple process is Shen in the current process
Please the successful process of memory, any one sub-information in the multiple sub-information includes that any one described sub-information is corresponding
The memory application path of process and the memory size of application, the memory application information is for determining in current process in generation
Deposit the process of leakage.
8. the method for claim 7, which is characterized in that the method also includes:
According to the corresponding memory request times of process in the current process and/or the process application in the current process
Memory size is ranked up the multiple sub-information.
9. a kind of memory management device characterized by comprising
Module is adjusted, for the memory application result according to current process, to the memory application frequency of failure of the current process
Statistical value Z is adjusted；
Processing module, for restarting the current process when Z is more than preset frequency of failure threshold value.
10. device as claimed in claim 9, which is characterized in that the adjustment module is used for:
In the current process application memory failure, Z=Z+1 is executed, to be updated to Z.
11. the device as described in claim 9 or 10, which is characterized in that the adjustment module is used for:
When current process application memory success, the current memory usage amount of the current process is obtained；
It is right when the current memory usage amount of the current process is less than the second threshold value and is more than or equal to the first threshold value
Z does following adjustment:
In the case where Z is greater than preset recovery step-length S, Z=Z-S is executed；
In the case where Z is less than or equal to S, Z=0 is executed, wherein first threshold value is less than second threshold value.
12. the device as described in any one of claim 9-11, which is characterized in that the adjustment module is used for:
In current process present application memory success, and the usage amount of the current memory of the current process is less than first
In the case where threshold value, Z=0 is executed.
13. the device as described in any one of claim 9-12, which is characterized in that before restarting the current process, institute
Processing module is stated to be also used to:
Determine that T-Y is greater than preset time gate limit value, wherein T is current time, and Y is in the current process first application
Corresponding time statistical value when depositing unsuccessfully.
14. device as claimed in claim 13, which is characterized in that in the case where executing Z=0, the adjustment module is also used
In:
Y=0 is executed, to be modified to the Y.
15. the device as described in any one of claim 9-14, which is characterized in that the processing module is also used to:
The memory application information of the current process is recorded, the memory application information includes multiple sub- application informations, described more
Multiple processes in a sub- application information and the current process correspond, and the multiple process is Shen in the current process
Please the successful process of memory, any one sub-information in the multiple sub-information includes that any one described sub-information is corresponding
The memory application path of process and the memory size of application, the memory application information is for determining in current process in generation
Deposit the process of leakage.
16. device as claimed in claim 15, which is characterized in that the processing module is also used to:
According to the corresponding memory request times of process in the current process and/or the process application in the current process
Memory size is ranked up the multiple sub-information.
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Application publication date: 20190416 |