WO2016082591A1

WO2016082591A1 - Method and device for embedded system to count memory

Info

Publication number: WO2016082591A1
Application number: PCT/CN2015/087709
Authority: WO
Inventors: 刘东栋
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-11-26
Filing date: 2015-08-20
Publication date: 2016-06-02
Also published as: CN105700952A

Abstract

Disclosed is a method for an embedded system to count a memory. The method for an embedded system to count a memory comprises the steps of: when an application program applies for a memory, acquiring a preset identification number corresponding to the memory applied for by the application program, and setting use state information corresponding to the identification number as a used state; when the application program releases the memory, acquiring a preset identification number corresponding to the memory released by the application program, and setting use state information corresponding to the identification number as an unused state; and according to the identification number corresponding to the use state information currently set as the unused state, acquiring a memory occupied by the currently operating application program of the embedded system. Also disclosed is a device for an embedded system to count a memory. The present invention effectively reduces the memory space occupied by data set to record a memory occupation situation, and reduces the additional overhead of the memory space, thereby increasing the available memory of the application program in the embedded system.

Description

Embedded system memory statistical method and device

Technical field

The present invention relates to the field of embedded system technologies, and in particular, to an embedded system memory statistical method and apparatus.

Background technique

At present, embedded systems have been widely used in various fields due to their reliability and real-time performance.

Memory is the main place for applications running in embedded systems. Real-time control of embedded memory usage is critical to the operational efficiency of embedded systems. The key to detecting memory leaks is the ability to get a distribution of memory usage online, that is, to get the programs that are currently occupied. The prior art generally records the memory usage by recording the file, line number, and stack information of each memory application, but the memory used to record the file, line number, and stack information of the memory application is large, resulting in a large memory. The available memory of the application in the embedded system is too small.

Summary of the invention

The embodiment of the invention provides an embedded system memory statistics method and device, which aims to solve at least the technical problem that the data occupied by the recording memory occupation has a large memory space.

In order to achieve at least the above object, an embodiment of the present invention provides an embedded system memory statistics method, where the embedded system memory statistics method includes the following steps:

When the application applies for the memory, the preset identification number corresponding to the memory requested by the application is obtained, and the usage status information corresponding to the identification number is set to the used state;

When the application releases the memory, the preset identification number corresponding to the memory released by the application is obtained, and the usage status information corresponding to the identification number is set to an unused state;

Obtaining the memory occupied by the currently running application of the embedded system according to the flag number corresponding to the usage status information currently set to the used state.

When the application applies for the memory, acquiring a preset identification number corresponding to the memory requested by the application, and setting the usage status information corresponding to the identification number to the used state, and releasing the in the application In the case of the memory, obtaining the preset identification number corresponding to the memory released by the application, and setting the usage status information corresponding to the identification number to the unused state before the step further includes:

The identification number is set for each piece of memory of the embedded system according to a preset definition rule.

The step of setting an identification number for each piece of memory of the embedded system according to the preset definition rule further includes:

Creating each of the identification numbers, memory information corresponding to each of the identification numbers, and each block corresponding to each of the identification numbers A one-to-one correspondence between the usage status information of the memory, wherein the initial values of the usage status information corresponding to each of the identification numbers are all unused.

The step of acquiring the memory occupied by the application currently running by the embedded system according to the identifier corresponding to the usage state information currently set to the used state includes:

Finding the usage status information that is currently in the used state in the correspondence relationship;

Acquiring corresponding memory information in the correspondence according to the usage status information obtained by the searching;

Obtaining memory occupied by an application currently running by the embedded system according to the obtained memory information.

After the step of acquiring the memory occupied by the application currently running by the embedded system according to the identifier corresponding to the usage status information currently set to the used state, the method further includes:

After the preset time, the corresponding identification number and the memory information are obtained in the corresponding relationship according to the usage status information obtained by the current search;

The usage status information obtained by the current search and the identification number and the memory information obtained according to the usage status information obtained by the search are sent to the preset storage module.

In addition, in order to achieve at least the foregoing, the embodiment of the present invention further provides an embedded system memory statistics device, where the embedded system memory statistics device includes:

The first processing module is configured to: when the application applies for the memory, obtain the preset identification number corresponding to the memory requested by the application, and set the usage status information corresponding to the identification number to the used state;

The second processing module is configured to: when the application releases the memory, acquire a preset identification number corresponding to the memory released by the application, and set the usage status information corresponding to the identification number to an unused state;

The statistic module is configured to acquire the memory occupied by the application currently running by the embedded system according to the identifier corresponding to the usage status information currently set to the used state.

The embedded system memory statistics device further includes:

The setting module is set to set an identification number for each piece of memory of the embedded system according to a preset definition rule.

The embedded system memory statistics device further includes:

a creating a module, configured to create a one-to-one correspondence between each of the identification numbers, memory information corresponding to each of the identification numbers, and usage status information of each block of memory corresponding to each of the identification numbers, where The initial values of the usage status information corresponding to each of the identification numbers are all unused.

The statistics module includes:

a searching unit, configured to search, in the correspondence relationship, usage status information that is currently in a used state;

An obtaining unit, configured to obtain corresponding memory information in the correspondence relationship according to the usage state information obtained by the searching;

The statistic unit is configured to obtain, according to the obtained memory information, a memory occupied by an application currently running by the embedded system.

The embedded system memory statistics device further includes:

Obtaining a module, configured to obtain a corresponding identification number and memory information in the corresponding relationship according to usage state information obtained by the current search after each preset time;

The sending module is configured to send the usage status information obtained by the current search, and the identification number and the memory information obtained according to the usage status information obtained by the searching to the preset storage module.

The embedded system memory statistics method and device provided by the embodiment of the present invention acquires a preset identification number corresponding to the memory applied by the application when the application applies for the memory, and sets the usage status information corresponding to the identification number. The used state; when the application releases the memory, obtains the preset identification number corresponding to the memory released by the application, and sets the usage status information corresponding to the identification number to an unused state; according to the current setting, Obtaining the memory occupied by the application currently running by the embedded system by using the flag number corresponding to the usage status information of the state, and the identification number may be an integer type data, and the module level information of the memory can be recorded by the identification number, effectively Reduces the memory space occupied by data set to record memory occupancy, reducing the overhead of memory space, thereby increasing the available memory of applications in embedded systems.

DRAWINGS

1 is a schematic flow chart of a first embodiment of an embedded system memory statistical method according to the present invention;

2 is a schematic flow chart of a second embodiment of an embedded system memory statistical method according to the present invention;

3 is a schematic flowchart of a third embodiment of an embedded system memory statistical method according to the present invention;

4 is a schematic diagram of a refinement process of step S30 in FIG. 1;

5 is a schematic flowchart of a fourth embodiment of an embedded memory statistics method according to the present invention;

6 is a schematic diagram of functional modules of a first embodiment of an embedded system memory statistical device according to the present invention;

7 is a schematic diagram of functional modules of a second embodiment of an embedded system memory statistics apparatus according to the present invention;

8 is a schematic diagram of functional modules of a third embodiment of an embedded system memory statistical device according to the present invention;

9 is a schematic diagram of a refinement function module of the statistical module in FIG. 6;

FIG. 10 is a schematic diagram of functional modules of a fourth embodiment of an embedded system memory statistics apparatus according to the present invention.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiments of the present invention provide an embedded system memory statistics method.

Referring to FIG. 1, FIG. 1 is a schematic flowchart diagram of a first embodiment of an embedded system memory statistical method according to the present invention.

In an embodiment, the embedded system memory statistical method comprises the following steps:

In step S10, when the application applies for the memory, the preset identification number corresponding to the memory requested by the application is obtained, and the usage status information corresponding to the identification number is set to the used state;

In step S20, when the application releases the memory, the preset identification number corresponding to the memory released by the application is obtained, and the usage status information corresponding to the identification number is set to an unused state;

In this embodiment, the identification number can be set according to actual needs, as long as each identification number can be made to represent a piece of memory. For example, the identification number can be set using an integer type of data.

Preferably, before the application requests or releases the memory, the memory management header structure (or the memory management header structure in the operating system is used), and the memory management header structure includes an identification number field set to record each of the identification numbers. And a memory information field configured to record memory information corresponding to each of the identification numbers and a usage status field configured to record usage status information of each block of memory corresponding to each of the identification numbers; and then recording each of the identification numbers to the location In the identifier number field, the memory information corresponding to each of the identifier numbers is recorded in the memory information field, and the usage status information of each block of the memory corresponding to the identifier number is recorded in the usage status field, where And forming a one-to-one correspondence between each of the identification number recorded in the memory management header structure, the memory information corresponding to the identification number, and the usage status information of the memory corresponding to the identification number. Among them, the memory information can represent the size and location of the memory.

When the application applies for memory, according to the memory requested by the application, the identification number corresponding to the requested memory is obtained, and then the usage status information corresponding to the identification number is set to the used state. Therefore, by querying the usage status field in the memory management header structure, the current corresponding memory occupied identification number can be obtained.

When the application releases the memory, according to the memory released by the application, the identification number corresponding to the released memory is obtained, and then the usage status information corresponding to the identification number is set to the unused state. Therefore, by querying the usage status field in the memory management header structure, the identification number of the current corresponding memory that is not occupied can be obtained.

Step S30: Acquire a memory occupied by an application currently running by the embedded system according to a flag number corresponding to the usage state information currently set to the used state.

When it is necessary to count the memory occupied by the currently running application of the embedded system, first query all the usage state information currently set to the used state in the memory management header structure, and then use the usage state information obtained according to the query in the above memory management header. Find the corresponding identification number in the structure, because each identification number can represent a piece of memory, so check The obtained identification number can obtain the memory occupied by the currently running application of the embedded system; or find the corresponding memory information in the above memory management header structure according to the usage status information obtained by the query, since the memory information directly represents the memory address And the size of the memory, so by looking up the obtained memory information, you can get the memory occupied by the application currently running by the embedded system.

The embedded system memory statistics method provided by the embodiment of the present invention obtains a preset identification number corresponding to the memory applied by the application when the application applies for the memory, and sets the usage status information corresponding to the identification number to The usage status; when the application releases the memory, obtains the preset identification number corresponding to the memory released by the application, and sets the usage status information corresponding to the identification number to an unused state; according to the current setting, the used state The identifier corresponding to the usage status information acquires the memory occupied by the application currently running by the embedded system, and the identification number can adopt integer data, and the module level information of the memory can be recorded by the identification number, which effectively reduces the The memory space set by the data set to record the memory occupancy reduces the overhead of the memory space, thereby increasing the available memory of the application in the embedded system.

Further, referring to FIG. 2, FIG. 2 is a schematic flowchart of a second embodiment of the method for calculating the memory of the embedded system according to the present invention. In some or all embodiments of the present invention, before step S10 and step S20, the method further includes:

Step S40, setting an identification number for each piece of memory of the embedded system according to a preset definition rule.

In this embodiment, the preset definition rules may be set according to actual needs, as long as each identification number can represent one piece of memory. Preferably, the identification number adopts unsigned integer data, and each identification number represents a piece of memory of the embedded system. Specifically, in this embodiment, the 32-bit integer number is used as an example, and the identification number can be divided into three segments. The first 8 bits from the high-order byte are the first segment, indicating one of the memory user or the releaser. Level module, indicating a range of 0 to 255, 0 value reserved; the second segment is 12 bits, indicating the secondary module of the memory user or releaser, indicating the range is 1 to 4095; the remaining 12 in the low byte The bit is the third segment, which represents the three-level module of the memory user or the releaser. The third-level module can be further divided into two segments, indicating a more refined module memory usage position. For example, the third segment can be divided into 4 segments. The bits and the two bits of the two bits represent the sub-module number and the offset within the sub-module, respectively, ranging from 1 to 255 and 1 to 15. By using integer data to set the identification number, the memory space occupied by the data set to record the memory occupancy is further effectively reduced, and the overhead of the memory space is reduced, thereby increasing the availability of applications in the embedded system. RAM.

Further, referring to FIG. 3, FIG. 3 is a schematic flowchart of a third embodiment of the method for calculating the memory of the embedded system according to the present invention. In a certain embodiment of the present invention, after step S40, the method further includes:

Step S50, creating a one-to-one correspondence between each of the identification numbers, memory information corresponding to each of the identification numbers, and usage status information of each block of memory corresponding to each of the identification numbers, wherein The initial values of the usage status information corresponding to the identification number are all unused.

In this embodiment, by using the identification number, the memory information of the memory block represented by the identification number, and the identification number The usage status information of the memory block establishes a one-to-one correspondence, so that the system can query the corresponding identification number and memory information according to the usage status information.

Preferably, the foregoing correspondence relationship is represented by the foregoing memory management header structure, where the memory management header structure includes an identification number field configured to record each of the identification numbers, and a memory information field configured to record memory information corresponding to each of the identification numbers. And a usage status field configured to record usage status information of each block of memory corresponding to each of the identification numbers; and recording the memory information corresponding to each of the identification numbers by recording each of the identification numbers into the identification number field In the memory information field, the usage status information of each block of memory corresponding to each of the identification numbers is recorded into the usage status field, wherein each of the identification numbers recorded in the memory management header structure Forming a one-to-one correspondence between the memory information corresponding to the identification number and the usage status information of the memory corresponding to the identification number, so that the system can obtain the application of the embedded system by querying the memory management header structure. Occupied memory, thus further effectively reducing the memory space occupied by data set to record memory occupancy Reducing the overhead of memory space, thereby increasing the memory available to applications in embedded systems.

Further, referring to FIG. 4, FIG. 4 is a schematic diagram of a refinement process of step S30 in FIG. 1. In some or all embodiments of the embodiment of the present invention, step S30 includes:

Step S31, searching for the usage status information that is currently in the used state in the corresponding relationship;

In this embodiment, by using the usage status field in the memory management header structure, the usage status information currently set to the used status is searched for.

Step S32: Obtain corresponding memory information in the correspondence relationship according to the usage state information obtained by the searching;

In this embodiment, for the usage state information of the currently used state obtained by searching in step S31, by searching for the memory information corresponding to the usage state information in the memory management header structure, the current usage state is obtained. Memory information.

Step S33: Acquire, according to the acquired memory information, a memory occupied by an application currently running by the embedded system.

In this embodiment, the memory information obtained in step S32 is counted. Since the memory information includes the memory size, the current running application program of the embedded system can be obtained by superimposing the memory size represented by each memory information. Occupied memory.

Further, in order to further reduce the memory space occupied by the data set to record the memory occupation, the overhead of the memory space is reduced, thereby increasing the available memory of the application in the embedded system. Referring to FIG. 5, FIG. 5 is embedded in the present invention. The flowchart of the fourth embodiment of the method for calculating the memory, in one or all of the embodiments of the present invention, after step S30, the method further includes:

Step S60: After the preset time, obtain the corresponding identification number and memory information in the corresponding relationship according to the usage state information obtained by the current search.

In step S70, the usage status information obtained by the current search and the identification number and the memory information obtained according to the usage status information obtained by the search are sent to the preset storage module.

In this embodiment, the preset time can be set according to actual needs. The preset storage module can be a piece of memory in the embedded system or an external storage device, and can be set according to actual needs.

At the preset time, the usage status information in the used state obtained by the current search, the identification number corresponding to the usage status information, and the memory information are all sent to the preset storage module.

If the number of times that the preset storage device continues to receive an identification number continues to increase, or is greater than a certain preset value, the embedded system may be considered to have a memory leak and needs to be processed in time.

In this embodiment, the statistical information of the memory in the used state is periodically sent to the preset storage module, so that the user can obtain the current memory usage of the embedded system by viewing the statistical information in the preset storage module, and Determine if there is a memory leak in the current embedded system.

The embodiment of the invention further provides an embedded system memory statistics device.

6 is a schematic diagram of functional modules of a first embodiment of an embedded system memory statistical device according to the present invention.

In an embodiment, the embedded system memory statistics device comprises:

The first processing module 10 is configured to: when the application applies for the memory, obtain the preset identification number corresponding to the memory requested by the application, and set the usage status information corresponding to the identification number to the used state;

The second processing module 20 is configured to: when the application releases the memory, acquire an preset identification number corresponding to the memory released by the application, and set the usage status information corresponding to the identification number to an unused state;

The statistic module 30 is configured to obtain the memory occupied by the application currently running by the embedded system according to the identifier corresponding to the usage status information currently set to the used state.

When it is necessary to count the memory occupied by the currently running application of the embedded system, first query all the usage state information currently set to the used state in the memory management header structure, and then use the usage state information obtained according to the query in the above memory management header. Find the corresponding identification number in the structure. Since each identification number can represent a piece of memory, the identification number obtained by the query can obtain the memory occupied by the application currently running by the embedded system; or the usage status information obtained according to the query. In the above memory management header structure, the corresponding memory information is searched. Since the memory information directly represents the memory address and the memory size, the memory occupied by the application currently running by the embedded system can be obtained by searching the obtained memory information.

The embedded system memory statistics device provided by the embodiment of the present invention obtains a preset identification number corresponding to the memory requested by the application when the application applies for the memory, and sets the usage status information corresponding to the identification number to The usage status; when the application releases the memory, obtains the preset identification number corresponding to the memory released by the application, and sets the usage status information corresponding to the identification number to an unused state; according to the current setting, the used state The identifier corresponding to the usage status information acquires the memory occupied by the application currently running by the embedded system, and the identification number can adopt integer data, and the module level information of the memory can be recorded by the identification number, which effectively reduces the The memory space set by the data set to record the memory occupancy reduces the overhead of the memory space, thereby increasing the available memory of the application in the embedded system.

Further, referring to FIG. 7, FIG. 7 is a schematic diagram of a functional module of a second embodiment of an embedded system memory statistic apparatus according to the present invention. In one or all embodiments of the present invention, the embedded system memory statistic apparatus further includes:

The setting module 40 is configured to set an identification number for each piece of memory of the embedded system according to a preset definition rule.

Further, referring to FIG. 8, FIG. 8 is a schematic diagram of a functional module of a third embodiment of an embedded system memory statistic apparatus according to the present invention. In an embodiment of the present invention, the embedded system memory statistic apparatus further includes:

The creating module 50 is configured to create a one-to-one correspondence between each of the identification numbers, memory information corresponding to each of the identification numbers, and usage status information of each block of memory corresponding to each of the identification numbers, where The initial values of the use status information corresponding to each of the identification numbers are all unused.

In this embodiment, a one-to-one correspondence is established between the identification number, the memory information of the memory block represented by the identification number, and the usage status information of the memory block represented by the identification number, so that the system according to the usage status information The corresponding identification number and memory information can be queried.

Further, referring to FIG. 9, FIG. 9 is a schematic diagram of a refinement function module of the statistic module of FIG. 6. In some or all embodiments of the present invention, the statistic module 30 includes:

The searching unit 31 is configured to search, in the correspondence relationship, usage status information that is currently in a used state;

The obtaining unit 32 is configured to acquire corresponding memory information in the correspondence relationship according to the usage state information obtained by the searching;

In this embodiment, for the usage status information that is currently used in the search unit 31, the memory status information corresponding to the usage status information is searched in the memory management header structure, that is, the current usage status is obtained. State memory information.

The statistic unit 33 is configured to acquire, according to the acquired memory information, a memory occupied by an application currently running by the embedded system.

In this embodiment, the memory information obtained in the obtaining unit 32 is counted, and since the memory information includes the memory size, Therefore, by superimposing the memory size represented by each memory information, the memory occupied by the currently running application of the embedded system can be obtained.

Further, in order to further reduce the memory space occupied by the data set to record the memory occupation, the overhead of the memory space is reduced, thereby increasing the available memory of the application in the embedded system. Referring to FIG. 10, FIG. 10 is the embedding of the present invention. The function module of the fourth embodiment of the system memory statistics device, in one or all embodiments of the present invention, the embedded system memory statistics device further includes:

The obtaining module 60 is configured to obtain the corresponding identification number and memory information in the corresponding relationship according to the usage state information obtained by the current search after every preset time;

The sending module 70 is configured to send the usage status information obtained by the current search and the identification number and the memory information obtained according to the usage status information obtained by the searching to the preset storage module.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. Perform the steps shown or described Alternatively, each of them may be fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof may be fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

As described above, an embedded system memory statistics method and apparatus provided by an embodiment of the present invention have the following beneficial effects: when an application applies for a memory, it acquires a preset identification number corresponding to the memory requested by the application, and Setting the usage status information corresponding to the identification number to the used state; when the application releases the memory, acquiring the preset identification number corresponding to the memory released by the application, and using the usage status information corresponding to the identification number Set to an unused state; obtain the memory occupied by the application currently running by the embedded system according to the flag number corresponding to the usage state information currently set to the used state, and the identification number may adopt integer data, and the identification number is adopted. The module-level information that can be recorded to the memory effectively reduces the memory space occupied by the data set to record the memory occupancy, which reduces the overhead of the memory space, thereby increasing the available memory of the application in the embedded system.

Claims

An embedded system memory statistical method, the embedded system memory statistical method comprising the following steps:

When the application applies for the memory, the preset identification number corresponding to the memory requested by the application is obtained, and the usage status information corresponding to the identification number is set to the used state;

When the application releases the memory, the preset identification number corresponding to the memory released by the application is obtained, and the usage status information corresponding to the identification number is set to an unused state;

Obtaining the memory occupied by the currently running application of the embedded system according to the flag number corresponding to the usage status information currently set to the used state.
The embedded system memory statistical method according to claim 1, wherein when the application applies for the memory, the preset identification number corresponding to the memory requested by the application is obtained, and the use corresponding to the identification number is used. The step of setting the status information to the used state and the obtaining the preset identification number corresponding to the memory released by the application when the application releases the memory, and setting the usage status information corresponding to the identification number to unused The steps of the status also include:

The identification number is set for each piece of memory of the embedded system according to a preset definition rule.
The embedded system memory statistical method according to claim 2, wherein the step of setting an identification number for each block of the embedded system according to the preset definition rule further comprises:

Creating a one-to-one correspondence between each of the identification numbers, memory information corresponding to each of the identification numbers, and usage status information of each block of memory corresponding to each of the identification numbers, wherein each of the identification numbers The initial values of the corresponding usage status information are all unused.
The embedded system memory statistical method according to claim 3, wherein the acquiring the memory occupied by the currently running application of the embedded system according to the identification number corresponding to the usage state information currently set to the used state The steps include:

Finding the usage status information that is currently in the used state in the correspondence relationship;

Acquiring corresponding memory information in the correspondence according to the usage status information obtained by the searching;

Obtaining memory occupied by an application currently running by the embedded system according to the obtained memory information.
The embedded system memory statistical method according to claim 4, wherein the acquiring the memory occupied by the application currently running by the embedded system according to the flag number corresponding to the usage state information currently set to the used state After the step, it also includes:

After the preset time, the corresponding identification number and the memory information are obtained in the corresponding relationship according to the usage status information obtained by the current search;

The usage status information obtained by the current search and the identification number and the memory information obtained according to the usage status information obtained by the search are sent to the preset storage module.
An embedded system memory statistical device, the embedded system memory statistical device includes:

The first processing module is configured to: when the application applies for the memory, obtain the preset identification number corresponding to the memory requested by the application, and set the usage status information corresponding to the identification number to the used state;

The second processing module is configured to: when the application releases the memory, acquire a preset identification number corresponding to the memory released by the application, and set the usage status information corresponding to the identification number to an unused state;

The statistic module is configured to acquire the memory occupied by the application currently running by the embedded system according to the identifier corresponding to the usage status information currently set to the used state.
The embedded system memory statistics device of claim 6, wherein the embedded system memory statistics device further comprises:

The setting module is set to set an identification number for each piece of memory of the embedded system according to a preset definition rule.
The embedded system memory statistics device of claim 7, wherein the embedded system memory statistics device further comprises:

a creating a module, configured to create a one-to-one correspondence between each of the identification numbers, memory information corresponding to each of the identification numbers, and usage status information of each block of memory corresponding to each of the identification numbers, where The initial values of the usage status information corresponding to each of the identification numbers are all unused.
The embedded system memory statistics device of claim 8, wherein the statistical module comprises:

a searching unit, configured to search, in the correspondence relationship, usage status information that is currently in a used state;

An obtaining unit, configured to obtain corresponding memory information in the correspondence relationship according to the usage state information obtained by the searching;

The statistic unit is configured to obtain, according to the obtained memory information, a memory occupied by an application currently running by the embedded system.
The embedded system memory statistics device of claim 9, wherein the embedded system memory statistics device further comprises:

Obtaining a module, configured to obtain a corresponding identification number and memory information in the corresponding relationship according to usage state information obtained by the current search after each preset time;

The sending module is configured to send the usage status information obtained by the current search, and the identification number and the memory information obtained according to the usage status information obtained by the searching to the preset storage module.