KR20220096820A - Electronic device for controlling interrupt based on transmission queue and control method thereof - Google Patents

Abstract

Disclosed are an electronic device for controlling an interrupt generation rate based on a transmission queue and a control method of the electronic device. The electronic device according to the present disclosure receives an input/output request from an external device, enables an interrupt indicating a completion of an operation to be generated when the operation according to the input/output request is completed, and transmits an input/output response for a phase input/output request to the external device. Specifically, the electronic device controls a generation rate of the interrupt to a first rate, identifies a length of a transmission queue for transmitting an input/output response to the external device, and enables the generation rate of the interrupt to be changed to a second rate faster than that of the first rate when the length of the transmission queue exceeds a predetermined threshold length.

Description

ELECTRONIC DEVICE FOR CONTROLLING INTERRUPT BASED ON TRANSMISSION QUEUE AND CONTROL METHOD THEREOF

The present disclosure relates to an electronic device and a control method of the electronic device, and more particularly, to an electronic device and a control method of the electronic device for controlling an interrupt generation rate based on a transmission queue.

In recent years, as the processing speed of input/output devices (I/O devices) has been significantly improved, the number of interrupts generated according to input/output requests (I/O requests) has greatly increased. are doing However, if the number of interrupts generated by the input/output device increases excessively, the amount of resources for processing the generated interrupt itself increases, and accordingly, there may be a problem that resources for processing other tasks are limited. .

As a prior art for solving the above problem, there is a technique for controlling the interrupt generation rate according to the sum of the number of network packets and bytes in communication between the CPU and the NIC, but according to this, the interrupt generation rate is excessively delayed. Therefore, transmission of the I/O response may be delayed.

As another prior art, there is a technique for controlling the generation rate of interrupts according to the CPU load of the host and the number of delayed I/Os in communication between the host and the storage device. Because the speed is controlled, there is a limit in that it is difficult to become a fundamental solution to the transmission delay of the input/output response.

The present disclosure is intended to overcome the problems of the prior art as described above, and an object of the present disclosure is to control an interrupt generation rate based on a transmit queue, thereby minimizing the occurrence of overhead due to interrupt processing and delaying input/output response. An object of the present invention is to provide an electronic device and a method for controlling an electronic device capable of preventing the above.

According to an embodiment of the present disclosure for achieving the above object, an electronic device receives an input/output request from an external device through a communication unit, a memory for storing data related to a plurality of modules, and the communication unit, and the input/output request and a processor for controlling the communication unit to generate an interrupt indicating the completion of the operation and to transmit an input/output response to the input/output request to the external device when the operation according to control at a first speed, identify the length of a transmission queue for transmitting the input/output response to the external device, and when the length of the transmission queue exceeds a preset threshold length, the rate of occurrence of the interrupt is determined The second speed is changed to a faster speed than the first speed.

Here, when the length of the transmission queue is less than a preset threshold length, the processor may maintain the interrupt generation rate as the first rate.

Meanwhile, if the length of the transmission queue exceeds the threshold length, the processor changes the interrupt generation rate to the second rate during a preset control period, and when the control period elapses, the interrupt generation rate is adjusted The first speed may be changed.

Here, the length of the control period may be determined based on a difference between the length of the transmission queue and the threshold length.

Here, the length of the control interval may be determined to be proportional to a difference between the length of the transmission queue and the threshold length.

Meanwhile, the first speed may be determined based on a latency corresponding to an application for performing an operation according to the input/output request.

On the other hand, the threshold length includes a first threshold length and a second threshold length longer than the first threshold length, and the processor determines the rate of occurrence of the interrupt when the length of the transmission queue exceeds the first threshold length. When the second rate is changed and the length of the transmission queue exceeds the second threshold length, the interrupt generation rate may be changed to a third rate faster than the second rate.

Meanwhile, the processor may include a plurality of cores, and may control the interrupt generation rate for each of the plurality of cores.

According to an embodiment of the present disclosure for achieving the above object, an input/output request is received from an external device, an interrupt indicating completion of the operation is generated when an operation according to the input/output request is completed, and the input/output request A method of controlling an electronic device for transmitting an input/output response to the external device to the external device, the method comprising: controlling the interrupt generation rate to a first rate; and when the length of the transmission queue exceeds a preset threshold length, changing the interrupt generation rate to a second rate faster than the first rate.

Meanwhile, according to an embodiment of the present disclosure for achieving the above object, in a non-transitory computer-readable recording medium including a program for executing a control method of an electronic device, the electronic device is input/output from an external device Receives a request, generates an interrupt indicating completion of the operation when an operation according to the input/output request is completed, transmits an input/output response to the input/output request to the external device, and the control method of the electronic device includes: controlling the generation rate to a first rate, identifying a length of a transmission queue for transmitting the input/output response to the external device, and when the length of the transmission queue exceeds a preset threshold length, the interrupt changing the generation rate of ? to a second rate that is faster than the first rate.

1 is a conceptual diagram for briefly explaining an electronic device and an external device according to an embodiment of the present disclosure;
2 is a flowchart illustrating a control method of an electronic device according to an embodiment of the present disclosure;
3 is a flowchart illustrating a control method of an electronic device according to another embodiment of the present disclosure;
4 is a block diagram schematically illustrating a configuration of an electronic device according to an embodiment of the present disclosure;
5 is a block diagram illustrating in detail the configuration of an electronic device according to an embodiment of the present disclosure.

Since the present embodiments can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the scope of the specific embodiments, and should be understood to include various modifications, equivalents, and/or alternatives of the embodiments of the present disclosure. In connection with the description of the drawings, like reference numerals may be used for like components.

In describing the present disclosure, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present disclosure, a detailed description thereof will be omitted.

In addition, the following examples may be modified in various other forms, and the scope of the technical spirit of the present disclosure is not limited to the following examples. Rather, these embodiments are provided to more fully and complete the present disclosure, and to fully convey the technical spirit of the present disclosure to those skilled in the art.

The terms used in the present disclosure are used only to describe specific embodiments, and are not intended to limit the scope of rights. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present disclosure, expressions such as “have,” “may have,” “include,” or “may include” indicate the presence of a corresponding characteristic (eg, a numerical value, function, operation, or component such as a part). and does not exclude the presence of additional features.

In this disclosure, expressions such as "A or B," "at least one of A and/and B," or "one or more of A or/and B" may include all possible combinations of the items listed together. . For example, "A or B," "at least one of A and B," or "at least one of A or B" means (1) includes at least one A, (2) includes at least one B; Or (3) it may refer to all cases including both at least one A and at least one B.

As used in the present disclosure, expressions such as “first,” “second,” “first,” or “second,” may modify various elements, regardless of order and/or importance, and refer to one element. It is used only to distinguish it from other components, and does not limit the components.

A component (eg, a first component) is "coupled with/to (operatively or communicatively)" to another component (eg, a second component); When referring to "connected to", it will be understood that the certain element may be directly connected to the other element or may be connected through another element (eg, a third element).

On the other hand, when it is said that a component (eg, a first component) is "directly connected" or "directly connected" to another component (eg, a second component), the component and the It may be understood that other components (eg, a third component) do not exist between other components.

The expression “configured to (or configured to)” as used in this disclosure, depending on the context, for example, “suitable for,” “having the capacity to” ," "designed to," "adapted to," "made to," or "capable of." The term “configured (or configured to)” may not necessarily mean only “specifically designed to” in hardware.

Instead, in some circumstances, the expression “a device configured to” may mean that the device is “capable of” with other devices or parts. For example, the phrase "a processor configured (or configured to perform) A, B, and C" refers to a dedicated processor (eg, an embedded processor) for performing the corresponding operations, or by executing one or more software programs stored in a memory device. , may mean a generic-purpose processor (eg, a CPU or an application processor) capable of performing corresponding operations.

In an embodiment, a 'module' or 'unit' performs at least one function or operation, and may be implemented as hardware or software, or a combination of hardware and software. In addition, a plurality of 'modules' or a plurality of 'units' may be integrated into at least one module and implemented with at least one processor, except for 'modules' or 'units' that need to be implemented with specific hardware.

Meanwhile, various elements and regions in the drawings are schematically drawn. Accordingly, the technical spirit of the present invention is not limited by the relative size or spacing drawn in the accompanying drawings.

Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present disclosure pertains can easily implement them.

1 is a conceptual diagram for briefly explaining an electronic device and an external device according to an embodiment of the present disclosure.

1 , the electronic device 100 according to the present disclosure may receive an input/output request (I/O request) from the external device 200 . In addition, the electronic device 100 may transmit an input/output response (I/O response) corresponding to the input/output request to the external device 200 . The electronic device 100 according to the present disclosure may be referred to as a term such as a 'server' or an 'I/O device', and the external device 200 may be referred to as a term such as a 'client terminal'.

Meanwhile, when an input/output request is received from the external device 200 , the electronic device 100 may generate an interrupt indicating that the input/output request has been received, thereby allowing the application to perform an operation according to the input/output request. Also, when the operation according to the input/output response is completed, the electronic device 100 may empty a transmission queue for data packets corresponding to the input/output response by generating an interrupt indicating that the operation according to the input/output response is completed. .

However, if the interrupt is generated too quickly, a problem in that the resource for processing the interrupt is excessively increased and thus the resource for processing other tasks is limited may occur. Conversely, if the interrupt is generated too slowly, a problem of delay in the input/output response may occur, in which the transmission queue is filled and it is impossible to transmit a new data packet. Accordingly, it is necessary to control the interrupt generation rate so as to prevent delay of input/output response while reducing the occurrence of overhead due to interrupt processing.

Hereinafter, various embodiments of the present disclosure for solving the above-described problems by effectively controlling an interrupt generation rate will be described with reference to FIGS. 2 to 5 . Unless otherwise specified below, the term 'interrupt' is used as a term to refer to an interrupt indicating that an operation according to an input/output request has been completed.

2 is a flowchart illustrating a method of controlling an electronic device according to an embodiment of the present disclosure.

As shown in FIG. 2 , the electronic device 100 according to an embodiment of the present disclosure may control the interrupt generation rate as the first rate ( S210 ). Here, the term 'first rate' is used as a term to refer to an initial interrupt generation rate set according to the present disclosure. Specifically, the first speed may be determined based on a latency corresponding to an application for performing an operation according to an input/output request. Meanwhile, the first speed may be determined according to a setting of a user or a developer. For example, the first rate may be a rate of generating 1000 interrupts per second. The first speed may be preferably determined within a range capable of reducing the occurrence of overhead according to the interrupt processing as described above. Meanwhile, the term 'interrupt generation rate' may be replaced with terms such as 'interrupt generation rate' or 'interrupt occurrence period'.

The electronic device 100 may identify the length of the transmission queue for transmitting the input/output response to the input/output request to the external device 200 ( S220 ). Here, the 'transmission queue' refers to a software structure for filling packets corresponding to responses to input/output requests in a stack format. In addition, the 'transmission queue length' may correspond to the amount (the number of bytes) of packets filled in the transmission queue. Meanwhile, when a preset time comes or when a preset amount of packets are filled in the transmission queue, the packets filled in the transmission queue may be transmitted to the external device 200 . In addition, when an interrupt indicating that the operation according to the input/output response is completed is generated, the transmission queue is emptied, so that a new data packet can be filled in the transmission queue.

Specifically, the electronic device 100 may monitor the length of the transmission queue in real time while an interrupt is generated at the first rate. The period of monitoring the length of the transmission queue may be changed by the setting of the user or the developer. In particular, it is recommended that the increase in resources according to the monitoring of the length of the transmission queue itself be determined within a range that does not cause a load on the entire system. may be desirable.

If the length of the transmit queue does not exceed the preset threshold length (S230-N), the electronic device 100 maintains the interrupt generation rate at the first rate, but continuously increases the length of the transmit queue in real time as described above. can be monitored. In other words, when it is identified that the space of the transmission queue is not insufficient, the electronic device 100 can continuously prevent overhead due to interrupt processing by maintaining the existing interrupt generation rate. The 'threshold length' to be compared with the length of the transmission queue may be changed according to a user's or developer's setting.

On the other hand, when the length of the transmission queue exceeds the preset threshold length (S230-Y), the electronic device 100 may change the interrupt generation rate to a second rate faster than the first rate (S240). Here, the 'second rate' is used as a term to distinguish and specify the interrupt generation rate changed according to the present disclosure from the first rate as described above. Like the first speed, the second speed may be determined differently according to a user's or developer's setting. For example, the second speed may be a speed of generating 3000 interrupts per second. It may be preferable that the second speed be determined within a range in which overhead according to interrupt processing does not increase excessively while solving the problem of delay of input/output response transmission when the interrupt is generated too slowly.

Meanwhile, in the above description, it is assumed that one critical length to be compared with the length of the transmission queue is specified, but the present disclosure is not limited thereto. That is, the threshold length according to the present disclosure may include a plurality of threshold lengths, and the electronic device 100 may control interrupts to be generated at different rates for a plurality of control sections divided according to the plurality of threshold lengths. For example, if the length of the transmission queue exceeds the first threshold length while the interrupt is generated at the first rate, the electronic device 100 may control the interrupt generation rate to a second rate faster than the first rate, , when the length of the transmission queue exceeds the second threshold length, which is longer than the first threshold length, while the interrupt is generated at the second rate, the electronic device 100 controls the generation rate of the interrupt to the third rate faster than the second rate can do.

Meanwhile, in the above description, it is assumed that there is one core of the processor of the electronic device 100 for performing the above-described control method, but the processor of the electronic device 100 according to the present disclosure includes a plurality of processors. It may include a core. In addition, when the processor includes a plurality of cores, the interrupt generation speed control method according to the present disclosure may be applied to each of the plurality of cores.

According to the embodiment as described above with reference to FIG. 2 , by setting the initial interrupt generation rate to be low, the occurrence of overhead due to interrupt processing is reduced and, at the same time, the interrupt is generated according to the result of monitoring the length of the transmission queue in real time. By increasing the generation rate, it is possible to prevent delay of input/output response.

3 is a flowchart illustrating a method of controlling an electronic device according to another embodiment of the present disclosure.

In the description of FIG. 2, only the method of increasing the interrupt generation rate itself according to the result of monitoring the length of the transmission queue has been described. However, according to another embodiment of the present disclosure, the interrupt generation rate is increased only during a predetermined period. After the interval has elapsed, the interrupt generation rate can be reduced again. Hereinafter, another embodiment of the present disclosure will be described in detail with reference to FIG. 3 .

Referring to FIG. 3 , as described above, the electronic device 100 may control the interrupt generation rate to the first rate ( S310 ), and transmit a response to the input/output request to the external device 200 . The length of the queue may be identified (S320). And, when the length of the transmission queue is less than the preset threshold length (S330-N), the electronic device 100 may maintain the interrupt generation rate at the first rate and monitor the length of the transmission queue in real time. Since the above steps have been described above in the description of FIG. 2 , a redundant description of the same content will be omitted.

Meanwhile, when the length of the transmission queue exceeds the threshold length (S330-Y), the electronic device 100 may determine the length of the control section based on a difference between the length of the transmission queue and the threshold length (S340). Here, the 'control period' refers to a period in which the interrupt generation rate is maintained at the second rate. When the length of the control section is determined, the electronic device 100 may change the interrupt generation rate to a second rate faster than the first rate (S350). And, the interrupt generation rate may be maintained at the second rate until the control period elapses (S360-N).

On the other hand, that the length of the control interval is determined based on the difference between the length of the transmission queue and the threshold length means that the greater the extent to which the length of the transmission queue exceeds the preset threshold length, the longer the control interval can be determined. . In other words, since the transmission of the input/output response can be delayed more when the transmission queue is filled more, the electronic device 100 increases the length of the control section for increasing the generation rate of the interrupter in order to solve the delay of the input/output response. It can be set long. In particular, the length of the control interval may be determined to be proportional to the difference between the length of the transmission queue and the threshold length.

When the control period elapses (S360-Y), the electronic device 100 may control the interrupt generation rate as the first rate. In other words, when the period in which the interrupter generation rate is increased has elapsed, the electronic device 100 reduces the interrupter generation rate again, thereby preventing overhead that may occur when the interrupt generation rate is increased for an excessive time. can

Meanwhile, in the above description, it is assumed that the control section is specified as one section, but the control section according to the present disclosure may include a plurality of control sections, and different interrupt generation rates may be applied to each of the plurality of control sections. have. For example, when the length of the transmission queue exceeds the threshold length, the electronic device 100 may determine the lengths of the first control interval and the second control interval based on a difference between the length of the transmission queue and the threshold length. For example, the length of the first control period may be 3 seconds, and the length of the second control period may be 1 second. When the lengths of the first control period and the second control period are determined, the electronic device 100 changes the interrupt generation rate during the first control period to a third rate faster than the second rate, and during the second control period The rate of occurrence may be changed to a second rate that is faster than the first rate and slower than the third rate.

According to the embodiment described above with reference to FIG. 3 , the electronic device 100 increases an interrupt generation rate according to a result of monitoring the length of the transmission queue, thereby preventing delay in input/output response and at the same time delaying a predetermined time. After this elapses, the generation of the interrupter is reduced again, thereby minimizing the occurrence of overhead due to interrupt processing.

4 is a block diagram schematically illustrating the configuration of an electronic device according to an embodiment of the present disclosure, and FIG. 5 is a block diagram illustrating in detail the configuration of an electronic device according to an embodiment of the present disclosure.

As shown in FIG. 4 , the electronic device 100 according to an embodiment of the present disclosure includes a communication unit 110 , a memory 120 , and a processor 130 . In addition, as shown in FIG. 5 , the electronic device 100 according to an embodiment of the present disclosure includes a plurality of input/output request processing module 131 , transmission queue monitoring module 132 , and interrupt generation control module 133 . may include modules of However, the configurations as shown in FIGS. 4 and 5 are merely exemplary, and in implementing the present disclosure, a new configuration may be added or some configuration may be omitted in addition to the configuration shown in FIGS. 4 and 5 . of course there is

The communication unit 110 includes a circuit and may communicate with the external device 200 . Specifically, the processor 130 may receive various data or information from the external device 200 connected through the communication unit 110 , and may transmit various data or information to the external device 200 .

The communication unit 110 may include at least one of a WiFi module, a Bluetooth module, a wireless communication module, and an NFC module. Specifically, each of the WiFi module and the Bluetooth module may perform communication using a WiFi method and a Bluetooth method. In the case of using a WiFi module or a Bluetooth module, various types of connection information such as an SSID may be first transmitted and received, and various types of information may be transmitted and received after communication connection using this.

In addition, the wireless communication module may perform communication according to various communication standards such as IEEE, Zigbee, 3rd Generation (3G), 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), 5th Generation (5G), and the like. In addition, the NFC module may perform communication using a Near Field Communication (NFC) method using a 13.56 MHz band among various RF-ID frequency bands such as 135 kHz, 13.56 MHz, 433 MHz, 860 to 960 MHz, and 2.45 GHz.

In particular, according to various embodiments of the present disclosure, the processor 130 may receive an input/output request from the external device 200 through the communication unit 110 . In addition, the processor 130 may control the communication unit 110 to transmit an input/output response corresponding to the input/output request to the external device 200 . Meanwhile, the processor 130 may receive data for various software modules for controlling an interrupt generation rate according to the present disclosure from the external device 200 through the communication unit 110 and store the data in the memory 120 .

At least one instruction related to the electronic device 100 may be stored in the memory 120 . In addition, an operating system (O/S) for driving the electronic device 100 may be stored in the memory 120 . In addition, various software programs or applications for operating the electronic device 100 according to various embodiments of the present disclosure may be stored in the memory 120 . In addition, the memory 120 may include a semiconductor memory such as a flash memory or a magnetic storage medium such as a hard disk.

Specifically, various software modules for operating the electronic device 100 may be stored in the memory 120 according to various embodiments of the present disclosure, and the processor 130 executes various software modules stored in the memory 120 . Thus, the operation of the electronic device 100 may be controlled. That is, the memory 120 is accessed by the processor 130 , and reading/writing/modification/deletion/update of data by the processor 130 may be performed.

Meanwhile, in the present disclosure, the term memory 120 refers to the memory 120 , a ROM (not shown) in the processor 130 , a RAM (not shown), or a memory card (not shown) mounted in the electronic device 100 (eg, For example, it may be used in the meaning of including a micro SD card, a memory stick).

In particular, according to various embodiments of the present disclosure, a plurality of modules for controlling an interrupt generation rate and various information/data related to the plurality of modules may be stored in the memory 120 . In addition, information about the interrupt generation rate determined by the processor 130 or set by the user or developer, such as information on the first speed, the second speed, and the third speed according to the present disclosure, is stored in the memory 120 . can be In addition, information about a threshold length, a control period, etc. according to the present disclosure may be stored in the memory 120 .

In addition, various information necessary within the scope for achieving the object of the present disclosure may be stored in the memory 120 , and the information stored in the memory 120 is updated as received from the external device 200 or input by the user. it might be

The processor 130 controls the overall operation of the electronic device 100 . Specifically, the processor 130 is connected to the configuration of the electronic device 100 including the communication unit 110 and the memory 120 as described above, and receives at least one instruction stored in the memory 120 as described above. By executing it, the overall operation of the electronic device 100 may be controlled.

The processor 130 may be implemented in various ways. For example, the processor 130 may include an Application Specific Integrated Circuit (ASIC), an embedded processor, a microprocessor, hardware control logic, a hardware finite state machine (FSM), or a digital signal processor (Digital Signal). Processor, DSP). Meanwhile, in the present disclosure, the term processor 130 may be used to include a central processing unit (CPU), a graphic processing unit (GPU), a main processing unit (MPU), and the like.

In particular, in various embodiments according to the present disclosure, the processor 130 is configured in the present disclosure through a plurality of modules such as the input/output request processing module 131 , the transmission queue monitoring module 132 and the interrupt generation control module 133 . Various embodiments may be implemented. A plurality of modules according to the present disclosure may be implemented as a software module, but at least one of the plurality of modules may be implemented as a hardware module. Meanwhile, data related to a plurality of modules may be stored in the memory 120 , and the processor 130 may access the memory 120 and use the plurality of modules by loading the plurality of modules.

The 'input/output request processing module 131' refers to a module capable of obtaining an input/output response by performing an operation according to an input/output request. Specifically, when an input/output request is received from the external device 200, the input/output request module performs an operation according to the input/output request through an application capable of performing the operation according to the input/output request, and accordingly, a data packet corresponding to the input/output response can create

The 'transmission queue monitoring module 132' refers to a module capable of identifying the length of a transmission queue for data packets corresponding to an input/output response. Specifically, when the operation according to the input/output request is completed through the input/output request processing module 131, the transmission queue monitoring module 132 identifies the length of the transmission queue based on the number of bytes of packets filled in the transmission queue, and Information on the length of the transmission queue may be transmitted to the interrupt generation control module 133 .

The 'interrupt generation control module 133' refers to a module capable of controlling whether or not an interrupt is generated and the rate of occurrence. Specifically, when an input/output request is received from the external device 200 , the interrupt generation control module 133 may control the communication unit 110 to generate an interrupt indicating that the input/output request has been received. Also, when the operation according to the input/output response is completed, the interrupt generation control module 133 may control the communication unit 110 to generate an interrupt indicating that the operation according to the input/output response is completed.

In addition, when information on the length of the transmission queue is received from the transmission queue monitoring module 132 , the interrupt generation control module 133 determines an interrupt generation rate based on the length of the transmission queue, and information on the determined interrupt generation rate by transmitting to the communication unit 110 , the communication unit 110 may control the communication unit 110 to generate an interrupt at the determined interrupt generation rate. In particular, according to an embodiment of the present disclosure, the processor 130 may control the interrupt generation rate as the first rate through the interrupt generation module. In addition, the processor 130 may identify the length of the transmission queue for transmitting the input/output response to the external device 200 through the transmission queue monitoring module 132 . When the length of the transmission queue exceeds the preset threshold length, the processor 130 may change the interrupt generation rate to a second rate faster than the first rate through the interrupt generation control module 133 . If the length of the transmission queue is less than the preset threshold length, the processor 130 may maintain the interrupt generation rate at the first rate through the interrupt generation control module. Here, maintaining the interrupt generation rate at the first rate means that no additional control is performed while the interrupt generation rate is maintained at the first rate, and the duration of the interrupt until the period of identifying the length of the transmission queue again occurs. It may include the meaning of controlling so that the generation rate becomes the first rate.

On the other hand, when the length of the transmission queue exceeds the threshold length, the processor 130 changes the interrupt generation rate to the second rate during the preset control period, and when the control period elapses, the interrupt generation rate is again changed to the first rate. can be changed to Here, the length of the control interval may be determined based on the difference between the length of the transmission queue and the threshold length, and more specifically, may be determined to be proportional to the difference between the length of the transmission queue and the threshold length.

In addition to the control process of the processor 130 as described above, the embodiments related to the control method as described above with reference to FIGS. 1 to 3 may be similarly applied to the control process of the processor 130 according to the present disclosure. of course there is

Meanwhile, the method for controlling the electronic device 100 as described above with reference to FIGS. 1 to 3 may be implemented as a program and provided to the electronic device 100 . In particular, a program including a control method of the electronic device 100 may be stored and provided in a non-transitory computer readable medium.

Specifically, in a non-transitory computer-readable recording medium including a program for executing a control method of the electronic device 100 , the electronic device 100 receives an input/output request from the external device 200 and responds according to the input/output request. When the operation is completed, an interrupt indicating the completion of the operation is generated, and an input/output response to the phase input/output request may be transmitted to the external device 200 . And, the control method of the electronic device 100 includes the steps of controlling an interrupt generation rate to a first rate, identifying a length of a transmission queue for transmitting an input/output response to the external device 200, and a transmission queue The method may include changing the interrupt generation rate to a second rate that is faster than the first rate when the length of α exceeds a preset threshold length.

In the above, the control method of the electronic device 100 and the computer-readable recording medium including a program for executing the control method of the electronic device 100 have been briefly described, but this is only for omitting redundant description, and Of course, various embodiments of the device 100 may be applied to a computer-readable recording medium including a control method of the electronic device 100 and a program for executing the control method of the electronic device 100 .

Meanwhile, the device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory storage medium' is a tangible device and only means that it does not contain a signal (eg, electromagnetic wave). It does not distinguish the case where it is stored as For example, the 'non-transitory storage medium' may include a buffer in which data is temporarily stored.

According to an embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly or online between smartphones (eg: smartphones). In the case of online distribution, at least a portion of the computer program product (eg, a downloadable app) is stored in device-readable storage, such as the manufacturer's server, the server of an application store, or the memory 120 of a relay server. At least temporarily stored in the medium, or may be temporarily created.

As described above, each of the components (eg, a module or a program) according to various embodiments of the present disclosure may be composed of a singular or a plurality of entities, and some of the above-described corresponding sub-components are omitted. Alternatively, other sub-components may be further included in various embodiments. Alternatively or additionally, some components (eg, a module or a program) may be integrated into a single entity to perform the same or similar functions performed by each corresponding component prior to integration.

According to various embodiments, operations performed by a module, program, or other component may be sequentially, parallel, repetitively or heuristically executed, or at least some operations may be executed in a different order, omitted, or other operations may be added. can

Meanwhile, the term “unit” or “module” used in the present disclosure includes a unit composed of hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, part, or circuit. can A “unit” or “module” may be an integrally formed component or a minimum unit or a part of performing one or more functions. For example, the module may be configured as an application-specific integrated circuit (ASIC).

Various embodiments of the present disclosure may be implemented as software including instructions stored in a machine-readable storage medium readable by a machine (eg, a computer). The device calls the stored instructions from the storage medium. and, as a device capable of operating according to the called command, the electronic device 100 (eg, the electronic device 100) according to the disclosed embodiments may be included.

When the instruction is executed by the processor 130 , the processor 130 may perform a function corresponding to the instruction by using other components directly or under the control of the processor 130 . Instructions may include code generated or executed by a compiler or interpreter.

In the above, preferred embodiments of the present disclosure have been illustrated and described, but the present disclosure is not limited to the specific embodiments described above, and it is common in the technical field to which the disclosure pertains without departing from the gist of the disclosure as claimed in the claims. Various modifications may be made by those having the knowledge of

100: electronic device 200: external device
110: communication unit 120: memory
130: processor

Claims (10)

In an electronic device,
communication department;
a memory for storing data related to a plurality of modules; and
Receive an input/output request from an external device through the communication unit,
When the operation according to the input/output request is completed, an interrupt indicating the completion of the operation is generated,
a processor controlling the communication unit to transmit an input/output response to the input/output request to the external device; including,
The processor is
controlling the interrupt generation rate to a first rate;
Identifies the length of a transmission queue for transmitting the input/output response to the external device,
When the length of the transmission queue exceeds a preset threshold length, the electronic device changes the interrupt generation rate to a second rate faster than the first rate.
According to claim 1,
The processor is
When the length of the transmission queue is less than a preset threshold length, the electronic device maintains the interrupt generation rate at the first rate.
According to claim 1,
The processor is
When the length of the transmission queue exceeds the threshold length, the interrupt generation rate is changed to the second rate during a preset control period;
When the control period elapses, the electronic device changes the interrupt generation rate to the first rate.
4. The method of claim 3,
The length of the control interval is determined based on a difference between the length of the transmission queue and the threshold length.
5. The method of claim 4,
The length of the control interval is determined to be proportional to a difference between the length of the transmission queue and the threshold length.
According to claim 1,
The first speed is determined based on a latency corresponding to an application for performing an operation according to the input/output request.
According to claim 1,
the threshold length includes a first threshold length and a second threshold length greater than the first threshold length;
The processor is
when the length of the transmission queue exceeds the first threshold length, changing the interrupt generation rate to the second rate;
When the length of the transmission queue exceeds the second threshold length, the electronic device changes the interrupt generation rate to a third rate faster than the second rate.
According to claim 1,
The processor is
comprising a plurality of cores,
An electronic device for controlling the interrupt generation rate for each of the plurality of cores.
In the control method of an electronic device, receiving an input/output request from an external device, generating an interrupt indicating completion of the operation when an operation according to the input/output request is completed, and transmitting an input/output response to the input/output request to the external device ,
controlling the interrupt generation rate to a first rate;
identifying a length of a transmission queue for transmitting the input/output response to the external device; and
changing the interrupt generation rate to a second rate faster than the first rate when the length of the transmission queue exceeds a preset threshold length; A control method of an electronic device comprising a.
A non-transitory computer-readable recording medium comprising a program for executing a control method of an electronic device,
The electronic device is
Receives an input/output request from an external device, generates an interrupt indicating completion of the operation when an operation according to the input/output request is completed, and transmits an input/output response to the input/output request to the external device;
The control method of the electronic device,
controlling the interrupt generation rate to a first rate;
identifying a length of a transmission queue for transmitting the input/output response to the external device; and
changing the interrupt generation rate to a second rate faster than the first rate when the length of the transmission queue exceeds a preset threshold length; A computer-readable recording medium comprising a.

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