WO2021109767A1

WO2021109767A1 - Network device and method for reducing transmission delay therefor

Info

Publication number: WO2021109767A1
Application number: PCT/CN2020/125515
Authority: WO
Inventors: 许天亮; 汪瀛; 武卫春; 马尔利
Original assignee: 华为技术有限公司
Priority date: 2019-12-02
Filing date: 2020-10-30
Publication date: 2021-06-10
Also published as: CN111163018A; CN111163018B

Abstract

A method for reducing a data transmission delay. The method comprises: a network device acquiring a data packet feature of a data packet to be scheduled; according to a preset correlation between data packet features and processing cores in a multi-core processor, the network device searching for a processing core corresponding to the data packet feature of the data packet to be scheduled; and the network device processing the data packet according to the found processing core. In this way, the processing of data packets by the same processing core can be effectively prevented. A corresponding processing core is selected according to a data packet feature to carry out processing, and the utilization rate of processing cores of a multi-core processor is thus effectively improved, such that a data packet can respond in a more timely manner, thereby improving the speed of data transmission and processing.

Description

Network equipment and method for reducing transmission time delay

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on December 02, 2019, the application number is 201911215163.0, and the application name is "Network Equipment and Methods for Reducing Transmission Delay", the entire content of which is incorporated by reference In this application.

Technical field

This application belongs to the field of communication technology, and in particular relates to a method, device, and equipment for reducing transmission delay.

Background technique

With the development of chip manufacturing technology, more and more processor chips have begun to develop toward multi-core chips. By integrating multiple complete computing engines or cores in one processor, the overall computing performance of the entire processor is improved. For example, more and more processors in routers collect multi-core chips.

In current communication products such as wireless routers, the WiFi chip usually runs on a certain core of a multi-core processor, and interrupts cannot be responded to in time, making the data transmission efficiency of the wireless router inefficient.

Summary of the invention

The embodiments of the present application provide a network device and a method for reducing data transmission delay, which can solve the problem that the interruption of a multi-core network device in the prior art cannot be responded to in time, and the data transmission efficiency of the network device is not high.

In the first aspect, an embodiment of the present application provides a method for reducing data transmission delay. The method for reducing data transmission delay includes: a network device obtains data packet characteristics of a data packet to be scheduled; and according to preset data Correspondence between packet characteristics and processing cores in the multi-core processor, the network device searches for the processing core corresponding to the packet characteristics of the data packet to be scheduled; the network device checks the data packet according to the searched processing.

It can be seen that the network device obtains the data packet characteristics of the data packet to be scheduled, and combines the preset correspondence between the data packet device and the processing core in the multi-core processor to find the processing core corresponding to the data packet. The characteristics of the data packet automatically match the corresponding processing core, which can effectively avoid the processing of the data packet by the same processing check. Selecting the corresponding processing cores for processing through the characteristics of the data packets effectively improves the utilization of the processing cores of the multi-core processor, so that the data packets can be responded to in a more timely manner, and the data transmission and processing speed can be improved.

Wherein, the data packet characteristics may include the service type of the data packet, the WIFI module identification corresponding to the data packet, and other characteristics. The WIFI module identifier may be the service identifier set SSID of the WIFI module, etc.

Possibly, the step of searching the processing core corresponding to the data packet feature of the data packet to be scheduled by the network device according to the preset correspondence relationship between the data packet characteristics and the processing cores in the multi-core processor includes: the network device obtains all the processing cores. The WIFI module corresponding to the data packet included in the data packet feature; according to the preset correspondence between the WIFI module and the processing core in the multi-core processor, the network device searches for the processing core corresponding to the WIFI module.

For a network device that includes multiple WIFI modules, the identifier of each WIFI module can be determined separately, and the binding relationship between the identifier and the processing core can be established. When the data packet is transmitted to the multi-core processor through the WIFI module, it is only necessary to quickly determine the corresponding processing core according to the WIFI module corresponding to the data packet. While the data between different WIFI modules can be effectively isolated, it can also effectively improve the utilization efficiency of the processing core.

Exemplarily, the step of searching for the processing core corresponding to the WIFI module according to the preset correspondence between the WIFI module and the processing core in the multi-core processor includes: identifying the SSID and the processing core according to the service set of the WIFI module Corresponding relationship, the network device searches for the processing core corresponding to the service set identifier SSID. The service identification set SSID can effectively distinguish different WIFI circuits.

In a possible implementation manner, the step of searching the processing core corresponding to the packet characteristics of the data packet to be scheduled by the network device according to the preset correspondence between the characteristics of the data packet and the processing core in the multi-core processor includes: The device obtains the data packet service type included in the data packet characteristic; according to the preset correspondence between the service type and the processing core in the multi-core processor, the network device searches for the processing core corresponding to the service type. Wherein, the service type includes one or more of game type, video type, instant messaging type, and ordinary surfing type.

It can be seen that for the same network device, such as a wireless router or a wireless MOED device, the number of connected terminal devices may include multiple, and the service types of data packets transmitted at the same time in the same terminal device may include multiple. Matching different processing cores with service types can effectively improve the parallelism of data transmission by the processing cores and improve the utilization efficiency of multi-core processors.

In an implementation manner, the method further includes: the network device obtains the busy value of the found processing core; when the busy value of the found processing core is greater than a preset busy threshold, the network device adjusts the to-be-scheduled The data packets of are allocated to the processing cores whose busy value is less than the busy threshold.

It can be seen that by estimating the busy value of the processing core, and on the basis of the preset correspondence relationship, the data packet corresponding to the processing core whose busy value exceeds the predetermined busy threshold is transferred, and the busy value is less than the said The processing core of the busy threshold can further optimize the parallel processing efficiency of the processor.

Wherein, the busy threshold of the processing core can be set in advance according to the parameters of the processor, such as the main frequency and other parameters, or the busy value of the processing core in the multi-core processor can be obtained by the network device. The average value of the busy value determines the busy threshold.

In a possible implementation manner, the step of obtaining the busy value of the processing core in the multi-core processor includes: the network device obtains the CPU scheduling duration of the processing core of the multi-core processor; The corresponding relationship determines the busy value of the processing core. By monitoring the scheduling duration of the data packet, the processing status of the processing core can be fed back in real time. When the processing core is busy or the processing core is in a blocked state, the scheduling time will increase accordingly. By setting the busy value corresponding to different scheduling time, the state of the processing core can be effectively quantified.

In a possible implementation manner, the method further includes: the network device obtains the priority of the data packet to be scheduled; when the busy value of the found processing core is greater than the preset busy threshold, the network device according to the priority of the data packet to be scheduled Priority, searching for the corresponding processing core among the processing cores whose busy value is less than the busy threshold. On the basis of determining the correspondence between the characteristics of the data packet and the processing core, the processing core corresponding to the data packet is further optimized. By monitoring the busy state of the processing cores searched by the data packet characteristics, when the busy value is greater than the preset busy threshold, the priority of the data packet can be matched to the processing cores whose busy value is less than the busy threshold Corresponding processing core. For example, the higher the priority, the smaller the matching busy value.

Wherein, the step of obtaining the priority of the data packet to be scheduled includes: the network device obtains the service type to which the data packet to be scheduled belongs; according to the preset correspondence between the service type and the priority, the network device determines Describe the priority corresponding to the data packet to be scheduled. Alternatively, the priority of the data packet may also be determined according to the WIFI module corresponding to the data packet.

In a possible implementation manner, the method further includes: the network device obtains the operating parameters of multiple processing cores corresponding to the same service type; the network device estimates the scheduling duration corresponding to the processing core to perform the scheduling task according to the operating parameters; If the actual scheduling duration is greater than the estimated scheduling duration, and the difference between the two is greater than the preset duration threshold, the network device determines that the processing core is in a blocked state. Wherein, the operating parameters of the processing core include the main frequency of the processing core. By estimating and comparing the scheduling duration of the processing cores, the operating status of the processing cores can be determined more effectively.

In a possible implementation manner, the method further includes: the network device obtains the operating parameters of multiple processing cores corresponding to the same service type; the network device combines the operating parameters of the processing cores according to the preset priority of the service type, Determine the processing core corresponding to the service type. Wherein, the step of determining the processing core corresponding to the service type according to the preset priority of the service type in combination with the operating parameters of the processing core may include: the network device determines the service priority sequence according to the priority of the service type The network device determines the performance sequence of the processing core according to the operating parameters of the processing core; the network device determines the correspondence between the service type and the processing core according to the performance sequence and the service priority sequence.

It can be seen that by combining the priority of the service type and the operating parameters of the processing core, the corresponding relationship between the processing core and the service type can be established more effectively, so that data packets with higher priority can be processed in a more timely and effective manner.

In a second aspect, the present application provides a network device that includes a memory, a processing screen, and a computer program. The display screen is used for processed images, the computer program is stored in the memory, and the computer The program includes instructions, and when the instructions are executed by the network device, the network device executes the method for reducing data transmission delay described in any one of the first aspect.

In a third aspect, the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the reduction of data as described in any one of the first aspect is implemented. The method of transmission delay.

In a fourth aspect, the embodiments of the present application provide a cloud computer program product containing instructions that, when the computer program product runs on a network device, causes the network device to execute the data reduction according to any one of claims 1-15. The method of transmission delay.

Understandably, the network device described in the second aspect, the computer storage medium described in the third aspect, and the computer program product described in the fourth aspect provided above are all used to execute the corresponding methods provided above. For the beneficial effects that can be achieved, reference may be made to the beneficial effects in the corresponding method provided above, which will not be repeated here.

Description of the drawings

FIG. 1 is a schematic diagram of an application scenario for reducing data transmission delay provided by an embodiment of the application;

2 is a schematic flow diagram of a method for reducing data transmission delay based on the corresponding relationship between a WIFI module and a processing core provided by an embodiment of the application;

3 is a schematic diagram of the correspondence between a processing core and a WIFI module provided by an embodiment of the application;

FIG. 4 is a schematic diagram of an implementation process of searching for processing cores of a multi-core processor to perform data transmission based on service types according to an embodiment of the application;

FIG. 5 is a schematic diagram of processing core allocation based on service type and usage amount according to an embodiment of the application;

FIG. 6 is a schematic structural diagram of a system for reducing data transmission delay according to an embodiment of the application;

FIG. 7 is a schematic structural diagram of an apparatus for reducing data transmission delay provided by an embodiment of the application;

FIG. 8 is a schematic structural diagram of a network device provided by an embodiment of this application.

Detailed ways

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of this application.

The terms used in the following embodiments are only for the purpose of describing specific embodiments, and are not intended to limit the application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also This includes expressions such as "one or more" unless the context clearly indicates to the contrary. It should also be understood that in the embodiments of the present application, "one or more" refers to one, two, or more than two; "and/or" describes the association relationship of associated objects, indicating that there may be three relationships; for example, A and/or B can mean the situation where A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

FIG. 1 is a schematic diagram of an application scenario for reducing data transmission delay provided by an embodiment of the application, and the details are as follows:

As shown in FIG. 1, the method for reducing data transmission delay is typically applied to a network device, and the network device is connected to one or more terminal devices through a WIFI module or a wired module. The terminal device may be a smart phone, a tablet computer, a notebook computer or a desktop computer, etc. The network device may include one or more WIFI modules. For example, in the same network device, a 2.4G WIFI module and a 5G WIFI module can be included. The network device includes an interrupt scheduling module, which can be used to perform interrupt scheduling operations on the processing cores in the multi-core processor according to the received data packets. For example, the multi-core processor in Figure 1 is a quad-core processor, which can schedule tasks for three of the processing cores, so that the scheduled processing cores can quickly and effectively respond to scheduling instructions, improving data transmission speed and instruction response speed. After being processed by the multi-core processor, the data packet can be sent to a device such as a base station or a router at the next level.

Based on the network device shown in Figure 1, it is possible to search for the processing core in the corresponding multi-core processor based on the data packet device of the data packet received by the network device, and perform data transmission on the data packet through the searched processing core deal with. Wherein, the characteristics of the data packet may include the service type of the data packet, the WIFI module corresponding to the transmission data packet, etc., which are described separately below.

FIG. 2 is a schematic flow diagram of a method for reducing data transmission delay based on the corresponding relationship between a WIFI module and a processing core provided by an embodiment of the application, which is described in detail as follows:

In step S201, the network device obtains the WIFI module corresponding to the data packet to be scheduled;

When multiple WIFI modules are included in the network device, the WIFI module may be determined as the data packet feature of the data packet to be scheduled according to the corresponding relationship of the WIFI module used during data packet transmission. For example, in the schematic diagram of the network device shown in FIG. 3, the network device includes two WIFI modules, the processor of the network device is a multi-core processor, and the number of processing cores of the processor is four. The established corresponding relationship between the processing core and the WIFI module, the data packet transmitted by the WIFI module is directly sent to the corresponding processing core for processing.

In the correspondence between the processing cores and the WIFI modules shown in FIG. 3, one WIFI module can be divided into two processing cores respectively in a way of halving.

In a possible implementation manner, the processing core corresponding to the WIFI module may be determined according to the acquired number of data packets transmitted by different WIFI modules. For example, the ratio of the number of processing cores corresponding to the WIFI module can be determined according to the ratio of the data packets transmitted by the WIFI module. For example, in a specific statistical result, the ratio of the amount of data transmitted by the first WIFI module to the data packet transmitted by the second WIFI module is 1:3, and accordingly, one processing core can be allocated to the first WIFI module , To allocate 3 processing cores for the second WIFI module.

In a possible implementation manner, the operating parameters of the processing core may also be acquired, and the operating parameters may include the main frequency of the processing core and the like. The data packets of the WIFI module in the network device are counted, and the corresponding processing cores are allocated according to the calculated data packets transmitted by the WIFI module in combination with the performance ratio of the processing cores. For example, the ratio of data packets transmitted by the two WIFI modules (the first WIFI module and the second WIFI module) in Figure 3 is 5 to 4. According to performance parameters such as the main frequency of the processing cores, the four processing cores ( (The first processing core, the second processing core, the third processing core, and the fourth processing core) have a performance ratio of 3:4:5:6. Then, the first processing core and the third processing core can be matched with the first processing core. The WIFI module matches the second processing core and the fourth processing core to the second WIFI module.

Or, the priority of data packets transmitted by different WIFI modules is different, and the processing core corresponding to the WIFI module can be determined according to the different priorities. Assign processing cores with better performance to the WIFI circuit corresponding to the higher priority data packet, or assign a larger number of processing cores to the WIFI circuit corresponding to the higher priority data packet in order to increase the priority. The transmission and response speed of the WIFI module corresponding to the data packet.

Due to the premise of the embodiment shown in FIG. 2, it is necessary to determine that the network device includes multiple WIFI modules. Therefore, before obtaining the WIFI module corresponding to the data packet of the data packet to be scheduled, the configuration parameters of the network device can also be detected, and the network device is determined to be a multi-core processor device according to the configuration parameters of the network device. The device includes multiple WIFI modules. Wherein, the configuration parameters of the network settings can be obtained by reading the configuration file of the network device to obtain the processor parameter information of the network device. When it is determined that the network device is a multi-core processor device and includes multiple WIFI modules, the WIFI module in the data packet characteristics transmitted by the network device can be further obtained.

When multiple WIFI modules may not be needed in other embodiments, the configuration parameters in the network device can be directly detected to determine whether the network device is a device with a multi-core processor.

In step S202, according to the preset correspondence between the WIFI module and the processing core in the multi-core processor, the network device searches for the processing core corresponding to the WIFI module;

Basically, the corresponding relationship between the processing core and the WIFI module may be the corresponding relationship between the service identification set SSID of the processing core and the WIFI module and the processing core.

According to the preset correspondence between the WIFI module and the processing core in the multi-core processor, after the WIFI module corresponding to the data packet is determined, the processing core corresponding to the data packet can be determined according to the correspondence.

In an embodiment, when the same WIFI module corresponds to two or more processing cores, the processing core corresponding to the data packet can be selected according to the operating parameters and operating status of the processing cores. For example, in the network device shown in FIG. 3, the same WIFI module corresponds to two processing cores. When a data packet to be scheduled is received, it is determined that the data packet to be scheduled corresponds to the first processing core and the second processing core. Further obtain the operating status of the first processing core and the second processing core, for example, the scheduling queue of the first processing core and the scheduling queue of the second processing core can be determined, and the first length of time to wait when the first processing core is selected is determined And the second processor, need to wait for the second length of time. You can select a processing core with a shorter waiting time that needs to be waited for for packet transmission processing. For example, the scheduling queue corresponding to the first processing core includes 3 data packets, and the corresponding scheduling duration is 3ms, 7ms, and 9ms, respectively, and the scheduling queue corresponding to the second processing core includes 3 data packets, and the corresponding scheduling duration is 5ms, 6ms, 5ms, since the waiting time of the first processing core is 3+7+9=19ms, and the waiting time of the second processing core is 5+5+6=16ms, therefore, the second processing can be selected first to check the data The packet is processed for transmission.

In an embodiment, when the same WIFI module corresponds to two or more processing cores, the processing cores corresponding to different service types can be determined according to the service types of the data packets in the WIFI module. For example, when the same WIFI module corresponds to two processing cores, different service types can be assigned to the processing cores according to the service types of the data packets in the WIFI module, including assigning the first processing core such as video type, For data packets of ordinary Internet access types, the second processing core allocates data packets such as game types and instant messaging types for processing.

In step S203, the network device checks the data packet for processing according to the searched processing.

According to the searched processing core, the data packet is sent to the scheduling queue corresponding to the searched data packet, and the data packet is scheduled. The data processed by the processing core can be sent to the base station or the next-level router.

In a network device that includes multiple WIFI modules, by establishing the corresponding relationship between the WIFI module and the processing core, due to the parallelism of the work of the WIFI module, it can effectively avoid the single processing when the multi-core processor processes the data packets that need to be transmitted. When the nuclear process is not efficient, the problem is that the response is not timely.

FIG. 4 is a schematic diagram of an implementation flow of data transmission by searching for processing cores of a multi-core processor based on service types according to an embodiment of the application, and the details are as follows:

In step S401, the data packet service type to be scheduled is acquired;

The data packet service type may include one or more of a game type, a video type, and a common surfing type. Wherein, the game type may be determined based on application name information or an online page game run by a game website with a specific domain name, for example, when FLASH game data is run on the surface, it is determined that the data packet is a game type. The video type may determine that the service type is the video type according to the data of the video format included in the set video application or page. In order to distinguish the advertising business of short videos, the video type network of a specific domain name can be counted, combined with the length of the video, the video type can be quickly distinguished based on the specific domain name counted. The instant messaging type can record specific instant messaging applications, such as WeChat, QQ, Wangwang, etc. The general Internet access type may be other data acquisition types that exclude the above types. Of course, the common Internet access type can be further divided according to the processor allocation accuracy, for example, it can also be classified into the mail type, the data download type, etc. according to the priority of the online task.

Before acquiring the data packet to be scheduled, it is also possible to determine whether the network device is a multi-core processor device by detecting the configuration information of the network device, for example, by reading the configuration file of the network device. After determining that the network device is a multi-core processor device, the obtained data packet type is further detected.

In step S402, according to the preset correspondence between the service type and the processing core in the multi-core processor, the network device searches for the processing core corresponding to the service type;

According to the correspondence between the service type and the processing core, the processing core corresponding to the service type corresponding to the data packet is searched, and the data corresponding to the service type is processed by the processing check.

When establishing the corresponding relationship between the service type and the processing core, it can be divided according to the frequency or amount of use of data packets of the network device, or it can also be based on the delay requirements or priority requirements of the data packets of the network device. The data packet is divided.

In an implementation manner, as shown in FIG. 5, the service type and corresponding usage amount of the data packets included in the network device in the history record may be counted. When dividing the service types according to the amount of usage. For example, the service type of a data packet can include service type 1, service type 2, service type 3, service type 4, service type 5, and service type 6, and the statistical usage (that is, the amount processed by the multi-core processor in the network device) The corresponding ratios of the quantity package are: 1:2:3:4:5:6. The multi-core processor includes 4 processing cores (assuming that the dispatch queues in the 4 processing cores are the same), then the service type 1 Matching with service type 4 is the same processing core, service type 2 and service type 3 are matched to the same processing core, service type 5 and service type 6 are matched with one processing core, so that multiple processing cores can be more evenly matched to different processing cores. While processing different business types, it can also effectively isolate data packets of different business types.

In an implementation manner, the service type may be divided and matched to different processing cores according to the delay requirement of the service type and the size of the data volume. For example, for a video service type, there are usually more data packets, while for a game service type, there are usually strict requirements on the delay time, that is, a small delay requirement needs to be guaranteed. In this case, business types with a large amount of data and business types with high real-time requirements can be allocated to different processing cores.

When the same service type (such as a video type with a large amount of data) corresponds to multiple processing cores, different processing cores can also be corresponded to the data packets of different WIFI modules corresponding to the same service type. For example, the service type of the video type corresponds to three processing cores, and different processing cores can be corresponded to the WIFI module used by the data packet of the video type. When the number of processing cores corresponding to the WIFI module corresponding to the data packet of the same service type is different from the number of processing cores corresponding to the data packet of the same service type, multiple processing cores with poor performance can be matched to the same WIFI module. For example, the service type of the video type corresponds to 3 processing cores, and there are 2 corresponding WIFI modules. Assuming that the performance of the three processing cores are sorted from good to poor, respectively, the first processing core, the second processing core, and the third processing core, the second processing core and the third processing core can be matched to the same WIFI module. Among them, the performance of the processing core can be determined according to the configuration parameters of the processing core, the length of the scheduling queue and other parameters.

Alternatively, the operating parameters of the processing core of the multi-core processor corresponding to the WIFI module can be obtained, including information such as main frequency, and the priority corresponding to the data packet to be processed can be obtained according to the preset service type, which can be determined according to the operating parameter information The performance sequence corresponding to multiple processing cores determines the business priority sequence of the data packet according to the priority of the business type, and matches the data packet with higher business priority to the processing core with better performance, thereby further improving

In step S403, the network device checks the data packet for processing according to the searched processing.

Through the difference in service types, the processing cores corresponding to the data packets are searched for processing, which can effectively adapt to the application scenarios where multiple terminals are connected to the same network device at the same time, and the service types of multiple terminals are more extensive.

In an embodiment, according to the method for reducing data transmission delay shown in FIG. 2 or FIG. 4, after finding the processing core corresponding to the data packet, the scheduling of the processing core can be further optimized in the following manner, as detailed in detail as follows:

The network device obtains the busy value of the found processing core; when the found busy value of the processing core is greater than the preset busy threshold, the network device allocates the to-be-scheduled data packet to the busy value less than the busy threshold Processing nuclear.

Wherein, the busy value of the processing core in the network device may be determined according to the CPU scheduling duration of the processing core of the multi-core processor in the network device. By establishing the correspondence between the CPU scheduling duration and the busy value, the busy value of the processing core can be determined according to the determined CPU scheduling duration. Wherein, the CPU scheduling duration is related to the length of the scheduling queue corresponding to the processing core. When the number of data packets in the scheduling queue corresponding to the processing core is larger, or the scheduling duration of a single data packet is longer, the CPU scheduling of the processing core The longer the duration, the greater the busy value of the processing core.

The busy threshold may be determined according to the configuration parameters of the processor. For example, the busy threshold of the processing core can be determined according to the main frequency in the configuration parameter of the processing core in the processor. The busy threshold is determined by the configuration parameters of the processing core, so that the processing core can quickly and timely transmit data packets in the scheduling queue, and can respond to interrupts in a relatively timely manner.

The busy threshold may also obtain the busy value of the processing core in the multi-core processor according to the network device; the network device determines the busy threshold according to the average value of the busy value of the processor. That is, the busy threshold dynamically adjusts the busy threshold according to the number of data packets currently being processed by the processing core. According to the dynamically adjusted busy threshold, the data packet is dispatched to the processing core with a smaller busy value for processing. In order to effectively improve the processor's ability to dispatch and respond to data.

In one embodiment, after the busy threshold corresponding to the processing core is determined, the priority of the data packet to be scheduled can also be determined, and the data packet can be optimally scheduled according to the priority of the data packet and the busy value of the processing core .

Wherein, the priority of the data packet can be determined according to the service type to which the data packet belongs, and according to a preset correspondence between the service type and the priority, to determine the priority corresponding to the data packet. For example, the pre-set priority of the game type is 1, the priority of the instant messaging type is 2, the priority of the common Internet type is 3, and the priority of the video type is 4. By analyzing the busy value fed back by the processing core, the busy value of processing core 1 is 1, the busy value of processing core 2 is 2, the busy value of processing core 3 is 3, and the busy value of processing core 4 is 4, assuming the average If the busy value is 2.5, the data packets to be processed in the processing core 3 and the processing core 4 can be dispatched to the processing 1 and the processor 2 for processing. Considering the priority of the data packets to be processed in the processing core 3 and processing core 4, suppose the data packets to be processed in the processing core 3 are of the game type, and the data packets to be processed in the processing core 4 are of the video type. The priority of the game type is higher than the video type, the data packets to be processed in the processing core 3 may be dispatched to the processing core 1, and the data packets to be processed in the processing core 4 may be dispatched to the processing core 2.

In addition, when determining the scheduling duration of the processing cores, the operating parameters of multiple processing cores corresponding to the same service type may also be obtained through the network device. For the same multi-core processor, the operating parameters of the processing cores included may be different. For example, the multi-core processor A includes two processing cores, and the corresponding main frequencies may be A1 and A2, and A1≠A2. The scheduling duration corresponding to the processing core's execution of the scheduled task can be estimated according to the operating parameters of the processing core. When the actual scheduling duration is greater than the estimated scheduling duration and the difference between the two is greater than a preset threshold, it can be determined The processing core is in a blocked state. After it is determined that the processing core is in the blocked state, the data packet corresponding to the processing core can be dispatched to other processing cores for processing, so as to avoid affecting the transmission performance and response performance of the system due to the blocking of the processing core.

For example, if the main frequency in the operating parameters of the processing core X is 1.9GHZ, the estimated scheduling duration of the processing core X for the scheduling task M is 3ms, and the actual duration of the actual processing of the scheduling task M is 8ms, then it can be judged When the processing core is blocked, the data packet corresponding to the processing core can be scheduled in time to switch to other non-blocking processing cores.

FIG. 6 is a schematic diagram of a system structure corresponding to the method for reducing data transmission delay shown in FIG. 4. As shown in FIG. 6, the system for reducing data transmission delay includes a configuration reading module 601, a service type identification module 602, and a scheduling decision module 603.

Among them: the configuration reading module 601 can read the hardware configuration information of the network device, which can include the number of WIFI modules of the network device, the number of processing cores of the processor, or the configuration parameters of the processing core, including, for example, the processing core The main frequency and so on.

The service type identification module 602 can identify the service type of the data packet, for example, it can identify that the service type of service stream A is a video type, the service type of service stream B is a game type, and the service type of service stream C is a normal Internet access type. According to the identified service type, the scheduling decision module 603 can determine the processing core corresponding to the service type according to the type. Multiple types of processing can correspond to the same processing core, or the same service type can correspond to multiple processing cores CPU1 and CPU2. , CPU3……CPUn, etc.

In addition, when the scheduling decision module makes scheduling decisions, it can also receive the delay information fed back by the processing core based on information such as the scheduling queue. The scheduling decision module 603 can determine the type of service and processing core based on the feedback delay information. On the basis of correspondence, further optimize the scheduling of data.

It should be understood that the size of the sequence number of each step in the foregoing embodiment does not mean the order of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

FIG. 7 is a schematic structural diagram of a device for reducing data transmission delay provided by an embodiment of the application, and the device for reducing data transmission delay includes:

The data packet characteristic acquiring unit 701 is configured to acquire the data packet characteristic of the data packet to be scheduled by the network device;

The processing core searching unit 702 is configured to search for the processing core corresponding to the data packet characteristics of the data packet to be scheduled by the network device according to the correspondence between the preset data packet characteristics and the processing cores in the multi-core processor;

The data packet processing unit 703 is configured to process the data packet according to the searched processing check by the network device.

In an embodiment, the processing core search unit includes:

The WIFI module obtaining subunit is used to obtain the WIFI module corresponding to the data packet included in the data packet feature by the network device;

The first processing core searching subunit is configured to search the processing core corresponding to the WIFI module by the network device according to the preset correspondence between the WIFI module and the processing core in the multi-core processor.

In an embodiment, the processing core search subunit is used to:

According to the correspondence between the service set identifier SSID of the WIFI module and the processing core, the network device searches for the processing core corresponding to the service set identifier SSID.

In an embodiment, the device further includes:

The operating parameter obtaining unit is used to obtain the operating parameters of multiple processing cores corresponding to the same service type by the network device;

The processing core determining unit is used for the network device to determine the processing core corresponding to the service type according to the preset priority of the service type in combination with the operating parameters of the processing core.

In an embodiment, the processing core determining unit includes:

The service priority sequence determination subunit is used for the network equipment to determine the service priority sequence according to the priority of the service type;

The performance sequence determination subunit is used for the network equipment to determine the performance sequence of the processing core according to the operating parameters of the processing core;

The corresponding relationship determining subunit is configured to determine, by the network device, the corresponding relationship between the service type and the processing core according to the performance sequence and the service priority sequence.

In an embodiment, the processing core search unit includes:

A data service type obtaining subunit, configured to obtain, by a network device, the data packet service type included in the data packet characteristics;

The second processing core searching subunit is configured to search for the processing core corresponding to the service type according to the preset correspondence relationship between the service type and the processing core in the multi-core processor.

In an embodiment, the service type includes one or more of a game type, a video type, an instant messaging type, and a common surfing type.

In one embodiment, the device further includes:

The first processing core busy value acquiring unit is used to acquire the busy value of the found processing core by the network device;

The scheduling unit is configured to, when the busy value of the found processing core is greater than the preset busy threshold, the network device allocates the to-be-scheduled data packet to the processing core whose busy value is less than the busy threshold.

In an embodiment, the device further includes:

The second processing core busy value acquiring unit is configured to acquire the busy value of the processing core in the multi-core processor by the network device;

The busy threshold determination unit is configured to determine the busy threshold by the network device according to the average value of the busy value of the processor.

The second processing core busy value acquiring unit includes:

The scheduling duration acquisition subunit is used to acquire the CPU scheduling duration of the processing core of the multi-core processor by the network device;

The busy value determining subunit is used for the network device to determine the busy value of the processing core according to the preset correspondence between the CPU scheduling duration and the busy value.

The device also includes:

The priority searching unit is configured to obtain the priority of the data packet to be scheduled by the network device;

The processing core scheduling unit is used for when the busy value of the found processing core is greater than the preset busy threshold, the network device searches for the corresponding processing cores whose busy value is less than the busy threshold according to the priority of the data packet to be dispatched The processing core.

The priority searching unit includes:

The service type obtaining subunit is used for the network device to obtain the service type to which the data packet to be scheduled belongs;

The priority determining subunit is configured to determine the priority corresponding to the data packet to be scheduled by the network device according to the preset correspondence between the service type and the priority.

In an embodiment, the device further includes:

The configuration parameter obtaining unit is used to obtain the hardware configuration parameters of the device by the network device;

The multi-core detection unit is used for the network device to detect that the device is a multi-core processor device according to the hardware configuration parameters.

In an embodiment, the device further includes:

A scheduling duration estimation unit, configured to estimate the scheduling duration corresponding to the processing core to execute the scheduling task by the network device according to the operating parameters;

The state judging unit is configured to determine that the processing core is in a blocked state when the actual scheduling duration is greater than the estimated scheduling duration and the difference between the two is greater than a preset duration threshold.

In one embodiment, the operating parameter of the processing core includes the main frequency of the processing core.

The device for excluding data transmission delay shown in FIG. 7 corresponds to the method for reducing data transmission delay described in FIG. 2.

FIG. 8 is a schematic structural diagram of a network device provided by an embodiment of this application. As shown in FIG. 8, the network device 8 of this embodiment includes: at least one processor 80 (only one is shown in FIG. 8), a processor, a memory 81, and a processor that is stored in the memory 81 and can be processed in the at least one processor. A computer program 82 running on the processor 80, when the processor 80 executes the computer program 82, the steps in any of the above-mentioned method embodiments for reducing data transmission delay are implemented.

The network device may include, but is not limited to, a processor 80 and a memory 81. Those skilled in the art can understand that FIG. 8 is only an example of the network device 8 and does not constitute a limitation on the network device 8. It may include more or less components than those shown in the figure, or a combination of certain components, or different components. , For example, can also include input and output devices, network access devices, and so on.

The so-called processor 80 may be a central processing unit (Central Processing Unit, CPU), and the processor 80 may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSP), and application specific integrated circuits (Application Specific Integrated Circuits). , ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

The memory 81 may be an internal storage unit of the network device 8 in some embodiments, such as a hard disk or a memory of the network device 8. In other embodiments, the memory 81 may also be an external storage device of the network device 8, such as a plug-in hard disk equipped on the network device 8, a smart media card (SMC), and a secure digital (Secure Digital, SD) card, Flash Card, etc. Further, the memory 81 may also include both an internal storage unit of the network device 8 and an external storage device. The memory 81 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program. The memory 81 can also be used to temporarily store data that has been output or will be output.

Those skilled in the art can clearly understand that for the convenience and conciseness of description, only the division of the above functional units and modules is used as an example. In practical applications, the above functions can be allocated to different functional units and modules as required. Module completion, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated in one processing unit, or each unit can exist alone physically, or two or more units can be integrated in one unit. The above-mentioned integrated units can be hardware-based Formal realization can also be realized in the form of a software functional unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of this application. For the specific working process of the units and modules in the foregoing system, reference may be made to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail or recorded in an embodiment, reference may be made to related descriptions of other embodiments.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. For example, the system embodiment described above is merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be It can be combined or integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

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, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the implementation of all or part of the processes in the above-mentioned embodiment methods in this application can be accomplished by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When executed by the processor, the steps of the foregoing method embodiments can be implemented. . Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate forms. The computer-readable medium may include at least any entity or device capable of carrying computer program code to a network device, a recording medium, a computer memory, a read-only memory (ROM, Read-Only Memory), and a random access memory (RAM, Random Access Memory), electric carrier signal, telecommunications signal and software distribution medium. For example, U disk, mobile hard disk, floppy disk or CD-ROM, etc. In some jurisdictions, in accordance with legislation and patent practices, computer-readable media cannot be electrical carrier signals and telecommunication signals.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still implement the foregoing The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in Within the scope of protection of this application.

Claims

A method for reducing data transmission delay, characterized in that the method for reducing data transmission delay includes:

The network device obtains the data packet characteristics of the data packet to be scheduled;

According to the correspondence between the preset data packet characteristics and the processing cores in the multi-core processor, the network device searches for the processing cores corresponding to the data packet characteristics of the data packet to be scheduled;

The network device checks the data packet for processing according to the searched processing.
The method for reducing data transmission delay according to claim 1, wherein the network device searches for the data packet to be scheduled based on the correspondence between the preset data packet characteristics and the processing cores in the multi-core processor. The steps of the processing core corresponding to the packet characteristics include:

The network device obtains the WIFI module corresponding to the data packet included in the data packet feature;

According to the preset correspondence between the WIFI module and the processing core in the multi-core processor, the network device searches for the processing core corresponding to the WIFI module.
The method for reducing data transmission delay according to claim 2, characterized in that, according to the preset correspondence between the WIFI module and the processing core in the multi-core processor, search for the processing core corresponding to the WIFI module The steps include:

According to the correspondence between the service set identifier SSID of the WIFI module and the processing core, the network device searches for the processing core corresponding to the service set identifier SSID.
The method for reducing data transmission delay according to claim 2, wherein the method further comprises:

The network equipment obtains the operating parameters of multiple processing cores corresponding to the same service type;

The network device determines the processing core corresponding to the service type according to the preset priority of the service type in combination with the operating parameters of the processing core.
The method for reducing data transmission delay according to claim 4, wherein the processing core corresponding to the service type is determined according to the preset priority of the service type and in combination with the operating parameters of the processing core. The steps include:

The network equipment determines the service priority sequence according to the priority of the service type;

The network equipment determines the performance sequence of the processing core according to the operating parameters of the processing core;

The network device determines the correspondence between the service type and the processing core according to the performance sequence and the service priority sequence.
The method for reducing data transmission delay according to claim 1, wherein the network device searches for the data packet to be scheduled based on the correspondence between the preset data packet characteristics and the processing cores in the multi-core processor. The steps of the processing core corresponding to the packet characteristics include:

The network device obtains the data packet service type included in the data packet feature;

According to the preset correspondence between the service type and the processing core in the multi-core processor, the network device searches for the processing core corresponding to the service type.
The method for reducing data transmission delay according to claim 6, wherein the service type includes one or more of a game type, a video type, an instant messaging type, and a common Internet type.
The method for reducing data transmission delay according to any one of claims 1-7, wherein the method further comprises:

The network device obtains the busy value of the found processing core;

When the busy value of the found processing core is greater than the preset busy threshold, the network device allocates the to-be-scheduled data packet to the processing core whose busy value is less than the busy threshold.
The method for reducing data transmission delay according to claim 8, wherein when the busy value of the found processing core is greater than a preset busy threshold, the data packet to be scheduled is allocated to Before the step of processing cores whose busy value is less than the busy threshold, the method further includes:

The network device obtains the busy value of the processing core in the multi-core processor;

The network device determines the busy threshold value according to the average value of the busy value of the processor.
The method for reducing data transmission delay according to claim 9, wherein the step of obtaining a busy value of a processing core in a multi-core processor comprises:

The network device obtains the CPU scheduling duration of the processing core of the multi-core processor;

The network device determines the busy value of the processing core according to the preset correspondence between the CPU scheduling duration and the busy value.
The method for reducing data transmission delay according to claim 8, wherein the method further comprises:

The network device obtains the priority of the to-be-scheduled data packet;

When the busy value of the found processing core is greater than the preset busy threshold, the network device searches for the corresponding processing core among the processing cores whose busy value is less than the busy threshold according to the priority of the data packet to be scheduled.
The method for reducing data transmission delay according to claim 11, wherein the step of obtaining the priority of the to-be-scheduled data packet comprises:

The network device obtains the service type to which the data packet to be scheduled belongs;

According to the preset correspondence between the service type and the priority, the network device determines the priority corresponding to the data packet to be scheduled.
The method for reducing data transmission delay according to claim 1, wherein before the step of acquiring the data packet characteristics of the data packet to be scheduled by the network device, the method further comprises:

The network device obtains the hardware configuration parameters of the device;

The network device detects that the device is a multi-core processor device according to the hardware configuration parameters.
The method for reducing data transmission delay according to claim 1, wherein the method further comprises:

The network equipment obtains the operating parameters of multiple processing cores corresponding to the same service type;

The network device estimates the scheduling duration corresponding to the processing core to execute the scheduling task according to the operating parameter;

When the actual scheduling duration is greater than the estimated scheduling duration, and the difference between the two is greater than the preset duration threshold, the network device determines that the processing core is in a blocked state.
The method for reducing data transmission delay according to claim 14, wherein the operating parameters of the processing core include the main frequency of the processing core.
A network device, characterized in that the device includes a memory, a processing screen, and a computer program, the display screen is used for processed images, the computer program is stored in the memory, and the computer program includes instructions, When the instruction is executed by the network device, the network device is caused to execute the method for reducing data transmission delay according to any one of claims 1 to 15.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, realizes the reduction of data transmission time according to any one of claims 1 to 15 Extension method.
A cloud computer program product containing instructions, characterized in that, when the computer program product runs on a network device, the network device executes the method for reducing data transmission delay according to any one of claims 1-15.