WO2017088571A1

WO2017088571A1 - Method and system for processing data of remote service for multiple sessions

Info

Publication number: WO2017088571A1
Application number: PCT/CN2016/099588
Authority: WO
Inventors: 陈普; 郑强
Original assignee: 华为技术有限公司
Priority date: 2015-11-27
Filing date: 2016-09-21
Publication date: 2017-06-01
Also published as: CN106817386B; CN106817386A

Abstract

A method and system for processing data of a remote service for multiple sessions for improving the performance at a server end. The method of the present invention comprises: acquiring data to be compressed of an application in a first session; calculating a validation value of the data to be compressed; querying whether compressed data corresponding to the data to be compressed exists in a compressed data caching and mapping module according to the validation value of the data to be compressed; if so, returning the found compressed data corresponding to the data to be compressed to the application; if not, compressing the data to be compressed to obtain the compressed data corresponding to the data to be compressed, storing the validation value of the data to be compressed and the compressed data corresponding to the data to be compressed to the compressed data caching and mapping module, and returning the compressed data corresponding to the data to be compressed to the application.

Description

Data processing method and system for remote service under multi-session

Technical field

The present invention relates to the field of communications technologies, and in particular, to a data processing method and system for remote services under multiple sessions.

Background technique

At present, multi-session remote desktop service (English full name: Remote Desktop Services, English abbreviation: RDS) or application virtualization based on Windows (Windows) system has become very popular. In the remote desktop service or application virtualization service, remotely related images are generally processed by a compression algorithm to save bandwidth. The compression processing is the main consumption of the server. The usual compression algorithms are: lossless algorithm compression such as zlib, lossy algorithm compression. Such as jpeg, video class compression algorithm compression such as H.264.

Practice has found that because there are multiple sessions on the server side, each session is processing these compression-related tasks, the data in different sessions may be duplicated, and the compression tasks are doing repeated calculations, resulting in relatively low server-side performance.

Summary of the invention

Embodiments of the present invention provide a data processing method and system for remote services under multi-session to improve server-side performance.

A first aspect of the present invention provides a data processing method for a remote service under a multi-session, in which a server for providing a remote service runs a cache management device and a plurality of sessions, and the first session is any one of the plurality of sessions. The plurality of sessions can access the cache management device, and the cache management device includes a compressed data cache mapping module. The method includes: acquiring data to be compressed of an application in the first session; and calculating the to-be-compressed a check value of the compressed data; querying, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; if the query result is exist, the query is performed The compressed data corresponding to the compressed data is returned to the application; if the query result is not present, the data to be compressed is compressed to obtain compressed data corresponding to the data to be compressed, and the data to be compressed is obtained. And compressing the compressed data corresponding to the data to be compressed into the compressed data cache mapping module, and compressing the data to be compressed The compressed data should be returned to the application.

In the technical solution, the server for providing the remote service runs on the server including the compressed data cache. The cache management device of the mapping module can access the cache management device by using multiple sessions running on the server. When a session needs to compress data, the server first queries the compressed data cache mapping module by using the check value of the data to be compressed. If the corresponding compressed data already exists, the compressed data is directly obtained, and no compression processing is performed; if there is no corresponding compressed data, the compression processing is performed, and the obtained compressed data is stored in the compressed data cache mapping module. Other session access, so that only one compression is needed for the same data, deduplication calculation is implemented, and the same compression calculation processing is repeated for multiple sessions in the server, thereby improving the performance of the server.

In a first possible implementation manner, the querying, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module includes: according to the first Querying, in the compressed data cache mapping module, the compressed data corresponding to the data to be compressed, and the compressed data corresponding to the data to be compressed; Compressing the data to be compressed includes: compressing the data to be compressed according to the compression type. Among them, by performing operations such as query and compression according to the type of compression, a more refined processing manner can be realized, which further satisfies the specific needs of the application.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner, the cache management device is an encoding driver, the obtaining step may be performed by the first session, and other steps may be performed. Executed by the encoding driver.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner, the cache management device is an encoding driver, and the obtaining step and the calculating step may be performed by the first session, Other steps can be performed by the code driver.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a fourth possible implementation, the cache management device is an encoding driver, the storing step may be performed by an encoding driver, and other steps may be performed by The first session is executed.

In the above implementation manners, it is possible to configure which operations are performed in the session according to the specific context, and which operations are performed in the cache management device, thereby satisfying more flexible actual requirements. For example, the advantage of calculating the check value in the session is that the logic of the application may have performed a check value such as a CRC value calculation on the image waiting compressed data, which is just used, which can reduce the resource overhead.

A second aspect of the present invention provides a multi-session remote service data processing system, wherein a server for providing a remote service runs a cache management device and a plurality of sessions, and the first session is any one of the plurality of sessions. The plurality of sessions can access the cache management device, and the cache tube The device includes: a compressed data cache mapping module; the system includes: an obtaining module, configured to acquire data to be compressed of the application in the first session; and a processing module, configured to calculate a check value of the data to be compressed; The check value of the data to be compressed is queried whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; if the query result is present, the queried data to be compressed is correspondingly compressed. The data is returned to the application; if the result of the query is not present, the data to be compressed is compressed to obtain compressed data corresponding to the data to be compressed, and the check value of the data to be compressed and the to-be-compressed The compressed data corresponding to the data is stored in the compressed data cache mapping module, and the compressed data corresponding to the data to be compressed is returned to the application.

In a first possible implementation manner, the processing module is further configured to: query the compressed data cache mapping according to a compression type required by an application in the first session and a check value of the data to be compressed. Whether the compressed data corresponding to the data to be compressed is compressed in the module; and the data to be compressed is compressed according to the compression type. Among them, by performing operations such as query and compression according to the type of compression, a more refined processing method is realized, which further satisfies the requirements of the application.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner, the cache management device is an encoding driver, and the acquiring module is deployed in the first session, where The processing module is deployed in the encoding driver.

With the second aspect or the first possible implementation of the second aspect, in a third possible implementation, the cache management device is an encoding driver, and the acquiring module is deployed in the first session; The processing module includes: a computing unit, a query unit, and an encoding unit, wherein the computing unit can be in the first session, and the query unit and the encoding unit can be deployed in the encoding driver.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a fourth possible implementation, the cache management device is a cache driver, and the acquiring module is deployed in the first session, where The processing module includes: a computing unit, a query unit, a coding unit, and a storage unit, wherein the computing unit, the query unit, and the encoding unit are deployable in the first session, and the storage unit is deployable in the encoding driver.

In the above implementation manners, it is possible to configure which units are configured in the session, which operations are performed, which units are configured in the cache management device, and which operations are performed according to the specific context, thereby satisfying more flexible actual requirements. For example, the benefits of calculating checksums in a session are: applied The logic may have performed a check value such as a CRC value calculation on the image waiting compressed data, which is just utilized, which can reduce resource overhead.

A third aspect of the present invention provides a computer device including a processor, a memory, and a bus; the memory is configured to store a program, and the processor is connected to the memory through the bus, when the computer device In operation, the processor executes the program stored by the memory to cause the computer device to perform a data processing method of a multi-session remote service as described in the first aspect of the invention.

It can be seen that, in some feasible implementation manners of the present invention, a cache management device is shared by multiple sessions, and compressed data applied in each session is saved in the cache management device for sharing by each session, thereby, for the same data. Only one compression is needed to satisfy the use of multiple sessions, and the deduplication calculation is implemented, which avoids the repeated compression calculation processing of multiple sessions in the server, and improves the performance of the server.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments and the prior art description will be briefly described below. Obviously, the drawings in the following description are only some implementations of the present invention. For example, other drawings may be obtained from those skilled in the art without any inventive effort.

Figure 1 is a system architecture of a remote desktop/remote application service implementation under Windows multi-session;

2 is a system architecture diagram of a server in an embodiment of the present invention;

3 is a schematic flowchart of a data processing method for a remote service under multi-session according to an embodiment of the present invention;

4 is a system architecture diagram of a server in the first scenario of the present invention;

5 is a system architecture diagram of a server in the second example of the present invention;

6 is a system architecture diagram of a server in the third example of the present invention;

FIG. 7 is a schematic structural diagram of a data processing system for remote services under multi-session according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a computer device according to an embodiment of the present invention.

detailed description

In order to enable those skilled in the art to better understand the solution of the present invention, the following will be combined with the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the accompanying drawings. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

The terms "first", "second", "third" and the like in the specification and claims of the present invention and the above drawings are used to distinguish different objects, and are not intended to describe a specific order. Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or alternatively Other steps or units inherent to these processes, methods, products or equipment.

The technical solution of the embodiment of the present invention is applied to a server for providing a remote service, and the server may be a server based on a Windows system, a server based on a Linux system, or a server based on other systems. The remote services include remote desktop services and remote application services. For example, a Windows server can provide remote desktop services by using RDS functions, or can provide remote application services by using application virtualization functions.

The technical principle of Remote Desktop Services is that multiple sessions are run on the server, and one user can remotely log in to one of the sessions on the client and run the application on that server. The server passes the graphical user interface to the client, which passes the user's input back to the server. When using Remote Desktop Services, you can provide the entire desktop environment to the user, or you can provide separate applications and data to the user. From the user's perspective, these applications are seamlessly integrated—the interface, feel, and behavior are the same as native programs.

The technical principle of application virtualization is to isolate the human-computer interaction logic of the application from the computational logic. When a user accesses a server-virtualized application, the user computer only needs to transfer the human-computer interaction logic to the server. The server-side provides a separate session space for the user, and the application computing logic runs in the session space. Subsequent human-computer interaction logic is passed to the client and displayed on the client's corresponding device, giving the user the same access experience as running a local application.

As shown in Figure 1, the system architecture of the server (Server) display in the remote desktop/remote application service implementation process under Windows multi-session is simply shown. Windows Server runs multiple sessions (Session), respectively. 1, session 2.....n means that n is a positive integer. Multiple applications can be run in the Session, which are represented by

applications

1, 2, 3, and so on.

In order to avoid the same compression calculation process in multiple sessions in the server, and improve the performance of the server, the embodiment of the present invention provides a data processing method and system for remote services under multiple sessions. The detailed description will be respectively made below through specific embodiments.

(Example 1)

A first embodiment of the present invention provides a data processing method for a remote service under multi-session, which is used to provide a server for a remote service, where the remote service includes at least one of a remote desktop service and a remote application service.

As shown in Figure 2, it is the system architecture diagram of the server. A cache management device and a plurality of sessions are run in the server, the multiple sessions include a first session, and the first session is any one of the multiple sessions, and the multiple sessions can be accessed. The cache management device includes a compressed data cache mapping module. The compressed data cache mapping module stores the compressed data, and each session can call the cache management device to access the compressed data cache mapping module. Each session can be provided to a user who can remotely log in to the server-provided session at the client and operate the application in the server session as if it were a local application. It should be noted that the compressed data stored in the compressed data cache mapping module is compressed data corresponding to the data to be compressed of the application of multiple sessions.

Referring to FIG. 3, a data processing method for a remote service in a multi-session according to an embodiment of the present invention may include:

301. Acquire data to be compressed of an application in the first session, and calculate a check value of the data to be compressed.

In the embodiment of the present invention, the server does not directly compress the compressed data, but calculates the check value of the data to be compressed, in response to the remote operation of the user. . The check value is used as the unique identifier of the data to be compressed, and is used to identify the data to be compressed and the compressed data obtained by compressing the data to be compressed.

Since there are multiple compression algorithms, one compressed data may have compressed data of a plurality of different compression types. Therefore, the check value of one data to be compressed may correspond to compressed data of a plurality of different compression types of data to be compressed. Optionally, if the application that needs to perform data compression in the first session has a requirement for the compression type, the server also obtains the response in the first session in this step. With the required compression type, such as lossless algorithm compression such as zlib, lossy algorithm compression such as jpeg, video class compression algorithm compresses compression types such as H.264.

In some embodiments, the check value may specifically adopt a Cyclic Redundancy Check (CRC) value. CRC is one of the most commonly used error check codes in the field of data communications. Other types of check values may also be employed in other embodiments. As long as it can be used for unique identification of compressed data, the specific type of check value is not limited in this paper.

It should be noted that the data to be compressed in this paper may be data in various formats such as images, videos, and texts, and the main data is image data.

302. Query, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module.

In the embodiment of the present invention, the compressed data generated by each session in the server is uniformly stored in the compressed data cache mapping module. When an application in the first session needs to perform data compression, it is likely that the corresponding compressed data (compressed by other sessions) already exists in the compressed data cache mapping module. In this step, after the check value of the data to be compressed of the application in the first session is calculated, the check value is used in the compressed data cache mapping module to query whether the data to be compressed is already present. Compressed data.

The compressed data cache mapping module generally needs to save the compressed data and the corresponding check value, that is, not only the check value and the compressed data but also the check value and the Correspondence of compressed data. In some embodiments, the compressed data cache mapping module can exist in the form of a mapping table. The cache management device can manage the mapping table. Please refer to Table 1 below for a schematic diagram of a mapping table.

Table 1

校验值Check value	被压缩数据Compressed data
001001	数据AData A
010010	数据BData B

The query operation of this step can be performed, for example, by the cache management device. Due to the need to maintain independence between sessions, a session is typically not allowed to directly access a common storage space such as the mapping table. However, the plurality of sessions can access the cache management device, and the cache management device performs an access operation on the mapping table. For a Windows server, the cache management device can be A driver is implemented. For a Linux server, the cache management device may be implemented by a driver, or may be implemented by a user state process, and may be other implementation manners. The specific implementation manner of the cache management device is not limited. .

Optionally, if the application that needs to perform data compression in the first session has a requirement for the compression type, in this step, the compression type required by the application in the first session and the verification of the data to be compressed may be specifically And queried whether the compressed data corresponding to the compressed data of the compression type exists in the compressed data cache mapping module.

In some embodiments, the cache management apparatus may include a plurality of compressed data cache mapping modules, wherein each compressed data cache mapping module is configured to store compressed data of a compressed type, such as shown in FIG. 2, compressed data cache mapping. Module 1 and compressed data cache mapping module 2 are respectively used to store compressed data of different compression types.

303. If the query result is present, return the compressed data corresponding to the to-be-compressed data to the application.

When the query result is present, the compressed data corresponding to the data to be compressed is queried in the compressed data cache mapping module, so that the data to be compressed in the first session may not be compressed, but the query is directly The compressed data corresponding to the data to be compressed is returned to the application in the first session. Thus, repeated compression calculations between sessions are avoided.

The data to be compressed is compressed to obtain the compressed data corresponding to the data to be compressed, and the check value of the data to be compressed and the data to be compressed are compressed. The data is stored in the compressed data cache mapping module, and the obtained compressed data corresponding to the to-be-compressed data is returned to the application.

When the query result is non-existent, it indicates that there is no corresponding compressed data in the compressed data cache mapping module, so the server compresses the data to be compressed in the first session, and the obtained compressed data performs two processings. And returning the compressed data corresponding to the data to be compressed to the application in the first session, and storing the check value of the data to be compressed and the compressed data corresponding to the data to be compressed to In the compressed data cache mapping module, when the compressed data is needed in subsequent sessions, the compressed data cache mapping module can be directly obtained without repeating the compression calculation.

Optionally, if the application that needs to perform data compression in the first session has a requirement for the compression type, in this step, when the server compresses the data to be compressed in the first session, The compression type compresses the data to be compressed.

The storing the data to be compressed and the compressed data corresponding to the data to be compressed are stored in the compressed data cache mapping module, which may be: verifying the data to be compressed. The value and the compressed data of the data to be compressed, and the correspondence between the check value and the compressed data are stored in the compressed data cache mapping module.

It can be understood that the foregoing solution in the embodiment of the present invention can be implemented, for example, on a Windows server, a Linux server, or an Android server.

It can be seen that, in the technical solution, a server for providing a remote service runs a cache management device including a compressed data cache mapping module, and multiple sessions running on the server can access the cache management device, when a certain session needs When compressing data, the server first queries the compressed data cache mapping module by using the check value of the data to be compressed, and if the corresponding compressed data already exists, the compressed data is directly obtained, and no compression processing is performed; if there is no corresponding Compressing the data, performing compression processing, and the obtained compressed data is stored in the compressed data cache mapping module for other sessions to access, so that only one compression is needed for the same data, and the deduplication calculation is realized, which avoids the server. Multiple sessions repeat the same compression calculation process, improving server-side performance.

In order to facilitate a better understanding of the technical solutions provided by the embodiments of the present invention, the technical solutions of the embodiments of the present invention are described below by taking the embodiments in the specific scenarios as an example.

Scene example one,

Please refer to FIG. 4, taking the server as a Windows Server as an example. FIG. 4 shows a multi-session system architecture and data processing flow of Windows Server. Windows Server runs multiple sessions such as Session 1, Session 2, etc., and also runs a cache management device, which is specifically an Encode Driver. The plurality of sessions includes a first session (eg, session 1), the first session being any of the plurality of sessions. The plurality of sessions are capable of accessing the encoding driver, and the encoding driver includes a compressed data cache mapping module (Compression Cache Map), which is referred to as a cache mapping module, and the cache mapping module stores compressed data. Optionally, the cache mapping module may include one or more. When multiple are included, different cache mapping modules may be used to store compressed data of different compression types.

Each session can run a remote display module (Remote Display Model), the remote display module is used to achieve interaction with the client, the human-computer interaction logic performed by the user at the client The remote display module is passed to the session, and the corresponding display logic is executed by the remote display module.

The method of the embodiment of the present invention can be completed by a cooperation of a remote display module and a code driver. among them,

The remote display module in the first session acquires data to be compressed of the application in the first session;

The encoding driver calculates a check value of the data to be compressed according to the check value of the data to be compressed, and queries whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; If yes, the compressed data corresponding to the data to be compressed is returned to the application; if the result of the query is not present, the data to be compressed is compressed to obtain compressed data corresponding to the data to be compressed. And storing the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module, and returning the compressed data corresponding to the to-be-compressed data to the Application.

As shown in Figure 4, the specific process of the data processing method is as follows:

1. The interface function is called in the remote display module in the first session to compress the compressed data (generally image data). The interface function is, for example, an API (Application Programming Interface). APIs are pre-defined functions that provide the ability for applications and developers to access a set of routines based on a piece of software or hardware without having to access source code or understand the details of internal workings. For example, the encoding driver can be called by a compression interface function (Compression API).

2. The interface function is actually called into the encoding driver (the encoding driver can be a Windows Driver that can be accessed by multiple sessions).

3. In the encoding driver, the data to be compressed is calculated by the CRC value (or other check value indicating uniqueness), and the CRC value is used to query from the compressed data cache mapping module whether the compressed data corresponding to the data to be compressed already exists. It should be noted that the Compression Cache Map stores the CRC value of the data to be compressed and the corresponding compressed data. Since there may be multiple compression algorithms when compressing, multiple Compression Cache Maps may be used to cache different compression algorithms. The compressed data can also be used in a Compression Cache Map. A CRC corresponds to compressed data of multiple different compression types. In fact, developers can easily implement different data structures.

There are two flow branches depending on whether the corresponding compressed data is queried.

Branch 1, query to the existence of the corresponding compressed data, perform the following steps:

4. If the result of the query is that the compressed data corresponding to the data to be compressed exists, the encoding drive The compressed data obtained by the query is obtained from the compressed data cache mapping module.

5. The encoding driver directly returns the queried compressed data to the interface function called by the remote display module, and returns the compressed data to the application in the first session through the interface function.

Branch 2, the result of the query is that there is no corresponding compressed data, then perform the following steps:

4. If the result of the query is that there is no compressed data corresponding to the data to be compressed, the encoding driver compresses the data to be compressed to obtain compressed data.

5. The encoding driver stores the check value with the compressed data and the obtained compressed data into the compressed data cache mapping module. The compressed data cache mapping module has a certain size. Optionally, if the data stored in the data exceeds a certain upper limit, a certain algorithm, such as the “most recently used” algorithm, may be used to delete the old data. Store new data.

6. The encoding driver obtains the compressed data obtained by the compression.

7. Return the obtained compressed data to the interface function called by the remote display module, and return the compressed data to the application in the first session through the interface function.

It is worth noting that for Windows Server, the above Encode Driver is currently the most suitable driver for Windows kernel mode, because the driver can accept multiple session access, but in fact it is possible as a user state process. The cache management device can also be implemented by a common shared memory and global pipe communication technology.

Scene example 2

Please refer to FIG. 5, taking the server as an example of Windows Server. FIG. 5 shows another multi-session system architecture and data processing flow of Windows Server.

Different from the scenario example 1, the step of calculating the check value in the example of this scenario is performed from the encoding driver and is changed to be executed in the session. which is:

The remote display module in the first session acquires data to be compressed of the application in the first session, and calculates a check value of the data to be compressed.

The encoding driver queries whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module according to the check value of the data to be compressed; if the query result is existing, the queried to be compressed The compressed data corresponding to the data is returned to the application; if the query result is non-existent, the encoding driver compresses the data to be compressed to obtain compressed data corresponding to the data to be compressed, and the data to be compressed And the compressed data corresponding to the data to be compressed is stored in the compressed data cache mapping module, and the obtained data to be compressed is obtained. The corresponding compressed data is returned to the application.

It can be seen that the position where the check value, such as the CRC value, is calculated in this scenario is moved before the calling interface function, that is, the check calculation is completed in the application logic of the first session, not in the encoding driver. As for the other operations, it is exactly the same as the scenario example 1, please refer to the description in the scenario example 1, which will not be described in detail here.

The advantage of calculating the check value in the application logic in this scenario is that the logic of the application may have calculated the CRC value of the image, which is just used, which can reduce the resource overhead.

Scene example three,

Please refer to FIG. 6 , taking the server as an example of Windows Server. FIG. 6 shows another multi-session system architecture and data processing flow of Windows Server. The difference between the system architecture and the scenario 1 is that, in this example, the cache management device is specifically a cache driver (Cache Driver), and other parts are the same as the scenario example 1, and details are not described herein again.

The difference between the data processing flow and the scenario one is that the calculation of the check value, the query of the compressed data, and the data compression are moved to the session. specific:

The remote display module in the first session acquires data to be compressed of the application in the first session, calculates a check value of the data to be compressed, and queries the compressed data cache according to the check value of the data to be compressed. Whether the compressed data corresponding to the to-be-compressed data exists in the mapping module; if the query result is the presence, the compressed data corresponding to the to-be-compressed data that is queried is obtained from the cache driver, and the to-be-compressed query is obtained. The compressed data corresponding to the data is returned to the application; if the result of the query is not present, the data to be compressed is compressed to obtain compressed data corresponding to the data to be compressed, and the obtained data to be compressed is corresponding. The compressed data is returned to the application;

The cache driver stores the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module.

As shown in Figure 6, the specific process of the data processing method is as follows:

1. Calling an interface function, such as a compression interface function (Compression API), in the remote display module in the first session, and calculating a CRC value of the data to be compressed, so as to compress the compressed data (generally image data).

2. The Compression API calls the query data for the presence of the interface function (Check data exist API).

3, Check data exist API call cache driver.

4. The Check data exist API queries whether the compressed data corresponding to the CRC value already exists in the compressed data cache mapping module of the cache driver according to the CRC value of the data to be compressed.

5. If the query result is present, the Check data exist API calls the Get data API.

6. The Get data API calls the cache driver to obtain the compressed data from the cache driver.

7. The Get data API returns the obtained compressed data to the compression interface function, and returns the compressed data to the application in the first session through the compression interface function.

3. If the result of the query is that there is no corresponding compressed data, the Check data exist API instructs the Encode data module in the remote display module to compress the data to be compressed to obtain compressed data.

4 , Check data exist API call Set data API (set data interface function).

5. The Set data API stores the compressed data obtained by the compression into the compressed data cache mapping module.

6. The Encode data module returns the compressed data obtained by the compression to the compression interface function, and returns the compressed data to the application in the first session through the compression interface function.

Compared with the scenario example 1, in this scenario, the logic part that queries whether the compressed data exists and the logical part of the compression process are transplanted to the encoder driver, which means that the application has more things to do, but the flexibility is more. High, the encoder driver becomes a cache driver.

In summary, the method of the embodiment of the present invention is further described in several scenarios.

It should be noted that the present invention may have multiple variant implementations, but the overall idea is to recalculate resource consumption through a similar Cache. Cache storage can make pure memory, or it may be added SSD to do secondary cache. Distributed storage may also help Cache. This approach should have a good effect on a single business scenario, and application virtualization is originally designed to deal with such scenarios, such as video education (seeing things almost), especially online multi-user real-time distance education, screen The content may be many the same.

(Embodiment 2) In order to better implement the above-described aspects of the embodiments of the present invention, related apparatuses for cooperating to implement the above aspects are also provided below.

Referring to FIG. 7, an embodiment of the present invention provides a data processing system for a remote service in a multi-session, in which a server for providing a remote service runs a cache management device and a plurality of sessions, where the first session is in the multiple sessions. Any of the sessions, the plurality of sessions can access the cache management device, the cache management device includes a compressed data cache mapping module; the system can include:

The obtaining module 701 is configured to acquire data to be compressed of an application in the first session.

The processing module 702 is configured to calculate a check value of the data to be compressed, and query whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module according to the check value of the data to be compressed; If the query result is not present, the compressed data corresponding to the data to be compressed is returned to the application; if the query result is not exist, the data to be compressed is compressed, and the corresponding data to be compressed is obtained. Compressing data, storing the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module, and returning the compressed data corresponding to the data to be compressed to the Application.

In some embodiments of the present invention, the processing module 702 is further configured to: query the compressed data cache mapping according to a compression type required by an application in the first session and a check value of the data to be compressed. Whether the compressed data corresponding to the data to be compressed is compressed in the module; and the data to be compressed is compressed according to the compression type.

In some embodiments of the present invention, the cache management device is specifically an encoding driver, the obtaining module 701 is deployed in the first session; the processing module 702 is deployed in the encoding driver; wherein, please refer to 4, the processing module 702 can include:

a calculating unit, configured to calculate a check value of the data to be compressed;

Querying, querying, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; if the query result is present, the data to be compressed to be queried Corresponding compressed data is returned to the application;

a coding unit, configured to compress the data to be compressed to obtain compressed data corresponding to the data to be compressed if the result of the query is not present;

The query unit is further configured to: when the query result is non-existent, store the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module, and The compressed data corresponding to the compressed data is returned to the application.

In some embodiments of the present invention, the cache management device is specifically an encoding driver, and the obtaining module 701 is deployed in the first session. Referring to FIG. 5, the processing module 702 may include:

a calculating unit, configured to calculate a check value of the data to be compressed, in the first session;

The query unit is deployed in the encoding driver, and is configured to query, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; if the query result is And returning the compressed data corresponding to the to-be-compressed data to the application;

a coding unit, configured to be used in the coding driver, to compress the data to be compressed to obtain compressed data corresponding to the data to be compressed if the query result is not present;

In some embodiments of the present invention, the cache management device is specifically a cache driver, and the obtaining module 701 is deployed in the first session. Referring to FIG. 6, the processing module 702 may include:

The query unit is deployed in the first session, and is configured to query, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; The compressed data corresponding to the to-be-compressed data that is queried is obtained from the cache driver, and the compressed data corresponding to the queried data to be compressed is returned to the application;

a coding unit, configured to be used in the first session, to compress the data to be compressed if the result of the query is not present, to obtain the compressed data corresponding to the data to be compressed;

a storage unit, configured to store the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module;

The query unit is further configured to: when the query result is non-existent, return the compressed data corresponding to the data to be compressed to the application.

It is to be understood that the functions of the various functional modules of the data processing system of the embodiments of the present invention may be specifically implemented according to the method in the foregoing method embodiments. For the specific implementation process, reference may be made to the related description in the foregoing method embodiments, and details are not described herein again.

It can be seen from the above that in some feasible embodiments of the present invention, the service for providing remote services The cache management device includes a compressed data cache mapping module, and the plurality of sessions can access the cache management device. When a session needs to compress data, the server first queries the compressed data by using the check value of the data to be compressed. The cache mapping module directly acquires the compressed data if the corresponding compressed data already exists, and does not perform compression processing; if there is no corresponding compressed data, performs compression processing, and the obtained compressed data is stored to the compressed data. The cache mapping module is used for other sessions to access, so that only one compression is needed for the same data, and the deduplication calculation is implemented, which avoids the repeated compression calculation processing of multiple sessions in the server, and improves the performance of the server.

(Example 3)

Referring to FIG. 8, an embodiment of the present invention further provides a computer device 800, which may include:

Processor 801, memory 803, bus 804;

The memory 803 is configured to store a program 805, the processor 801 is connected to the memory 803 via the bus 804, and when the computer device 800 is running, the processor 801 executes the The program 805 is configured to cause the computer device 800 to perform a data processing method of a multi-session remote desktop or remote application service as described in the above method embodiments.

The computer device 800 may further include a communication interface 802 for receiving and transmitting data.

The bus 804 may be an Industry Standard Architecture (ISA) bus or a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (abbreviated as an Extended Industry Standard Architecture). EISA) bus and so on. The bus can be divided into one or more of an address bus, a data bus, and a control bus. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.

The memory 803 is configured to store executable program code, the program code including computer operating instructions. The memory 803 may include a high speed RAM (Ramdom Access Memory) memory. Optionally, the memory 803 may further include a non-volatile memory. For example, the memory 803 can include a disk storage.

The processor 801 may be a central processing unit (CPU), or the processor 801 may be a specific integrated circuit (Application Specific) Integrated Circuit (abbreviated as ASIC), or the processor 801 can be one or more integrated circuits configured to implement embodiments of the present invention.

It can be seen that, in some possible implementations of the present invention, a computer device is provided, which can implement the data processing method of the multi-session remote desktop or remote application service provided by the foregoing method embodiment, and obtain The technical effect of the method embodiment.

(Embodiment 4,)

Embodiments of the present invention also provide a computer readable storage medium storing one or more programs, the one or more programs including instructions that, when executed by a computer device including one or more processors The computer device performs a data processing method of a remote desktop or remote application service under multi-session as provided by the method embodiment above.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment can be referred to the related description of other embodiments.

It should be noted that, for the foregoing method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence, because In accordance with the present invention, certain steps may be performed in other sequences or concurrently. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of cells is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, ie may be located in one place, or It can also be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

An integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The data processing method and system for the multi-session remote service provided by the embodiment of the present invention are described in detail. The principle and implementation manner of the present invention are described in the following. The description of the above embodiment is only used for the description. To help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in specific embodiments and application scopes. It should not be construed as limiting the invention.

Claims

A data processing method for a remote service in a multi-session, characterized in that a server for providing a remote service runs a cache management device and a plurality of sessions, and the first session is any one of the plurality of sessions. The plurality of sessions can access the cache management device, and the cache management device includes a compressed data cache mapping module; the method includes:

Obtaining data to be compressed of the application in the first session;

Calculating a check value of the data to be compressed;

Querying, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module;

If the result of the query is yes, the compressed data corresponding to the to-be-compressed data that is queried is returned to the application;

If the result of the query is not present, the data to be compressed is compressed to obtain compressed data corresponding to the data to be compressed, and the check value of the data to be compressed and the compressed data corresponding to the data to be compressed are stored. And to the compressed data cache mapping module, and return the compressed data corresponding to the data to be compressed to the application.
The method according to claim 1, wherein the querying, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module comprises:

Querying, according to the compression type required by the application in the first session, and the check value of the data to be compressed, whether the compression type corresponding to the compression type is compressed in the compressed data cache mapping module data;

The compressing the data to be compressed includes:

The data to be compressed is compressed according to the compression type.
The method of claim 1, wherein the cache management device is an encoding driver, the method comprising:

The first session acquires data to be compressed of an application in the first session;

The encoding driver calculates a check value of the data to be compressed, and queries whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module according to the check value of the data to be compressed; For the existence, the compressed data corresponding to the to-be-compressed data is returned to the application; if the query result is not exist, the data to be compressed is compressed, And the compressed data corresponding to the data to be compressed and the compressed data corresponding to the data to be compressed are stored in the compressed data cache mapping module, and the compressed data is to be compressed. The compressed data corresponding to the data is returned to the application.
The method of claim 1, wherein the cache management device is an encoding driver, the method comprising:

The first session acquires data to be compressed of the application in the first session, and calculates a check value of the data to be compressed.

The encoding driver queries whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module according to the check value of the data to be compressed; if the query result is existing, the queried to be compressed The compressed data corresponding to the data is returned to the application; if the query result is non-existent, the encoding driver compresses the data to be compressed to obtain compressed data corresponding to the data to be compressed, and the data to be compressed The compressed data corresponding to the data to be compressed is stored in the compressed data cache mapping module, and the compressed data corresponding to the data to be compressed is returned to the application.
The method according to claim 1, wherein the cache management device is a cache driver, and the method comprises:

The first session acquires data to be compressed of the application in the first session, calculates a check value of the data to be compressed, and queries whether the compressed data cache mapping module is used according to the check value of the data to be compressed. And the compressed data corresponding to the data to be compressed is obtained from the cache driver, and the compressed data corresponding to the data to be compressed is queried. The compressed data is returned to the application; if the result of the query is not present, the data to be compressed is compressed, and the compressed data is corresponding to the compressed data, and the compressed data corresponding to the compressed data is returned to the application;

The cache driver stores the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module.
A multi-session remote service data processing system, characterized in that a server for providing a remote service runs a cache management device and a plurality of sessions, and the first session is any one of the plurality of sessions. The plurality of sessions can access the cache management device, and the cache management device includes a compressed data cache mapping module; the system includes:

An acquiring module, configured to acquire data to be compressed of an application in the first session;

a processing module, configured to calculate a check value of the data to be compressed; and query, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; The result is that the compressed data corresponding to the data to be compressed is returned to the application; if the result of the query is not existing, the data to be compressed is compressed, and the corresponding data to be compressed is compressed. Data, storing the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module, and returning the compressed data corresponding to the data to be compressed to the application.
The system of claim 6 wherein:

The processing module is further configured to: query whether the compression type exists in the compressed data cache mapping module according to a compression type required by an application in the first session and a check value of the data to be compressed. The compressed data corresponding to the data to be compressed; and compressing the data to be compressed according to the compression type.
The system according to claim 6, wherein the cache management device is an encoding driver, the acquisition module is deployed in the first session, and the processing module is deployed in the encoding driver.
The system of claim 6, wherein the cache management device is an encoding driver, the acquisition module is deployed in the first session; and the processing module comprises:

a calculating unit, configured to calculate a check value of the data to be compressed, in the first session;

The query unit is deployed in the encoding driver, and is configured to query, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; if the query result is And returning the compressed data corresponding to the to-be-compressed data to the application;

a coding unit, configured to be used in the coding driver, to compress the data to be compressed to obtain compressed data corresponding to the data to be compressed if the query result is not present;

The query unit is further configured to: when the query result is non-existent, store the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module, and The compressed data corresponding to the compressed data is returned to the application.
The system of claim 6, wherein the cache management device is a cache driver, the acquisition module is deployed in the first session, and the processing module comprises:

a calculating unit, configured to calculate a check value of the data to be compressed, in the first session;

The query unit is deployed in the first session, and is configured to query, according to the check value of the data to be compressed, whether the compressed data corresponding to the data to be compressed exists in the compressed data cache mapping module; The compressed data corresponding to the to-be-compressed data that is queried is obtained from the cache driver, and the compressed data corresponding to the queried data to be compressed is returned to the application;

a coding unit, configured to be used in the first session, to compress the data to be compressed if the result of the query is not present, to obtain the compressed data corresponding to the data to be compressed;

a storage unit, configured to store the check value of the data to be compressed and the compressed data corresponding to the data to be compressed into the compressed data cache mapping module;

The query unit is further configured to: when the query result is non-existent, return the compressed data corresponding to the data to be compressed to the application.
A computer device, comprising: a processor, a memory, a bus; the memory is for storing a program, the processor is connected to the memory through the bus, when the computer device is running The processor executes the program stored by the memory to cause the computer device to perform the method of any of claims 1-5.