KR102503579B1 - Electronic device for controlling interrupt based on transmission queue and control method thereof - Google Patents

Abstract

An electronic device for controlling an interrupt generation rate based on a transmit queue and a control method of the electronic device are disclosed. An electronic device according to the present disclosure 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. In particular, the electronic device controls the generation rate of the interrupt to a first rate, identifies the length of a transmission queue for transmitting an input/output response to an external device, and interrupts an interrupt when the length of the transmission queue exceeds a preset threshold length. Change the generation rate of to a second rate faster than the first rate.

Description

Electronic device for controlling an interrupt based on a transmission queue and method for controlling the same

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

Recently, as the processing speed of input/output devices (I/O devices) has improved remarkably, 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 interrupts itself increases, and accordingly, a problem in that resources for processing other tasks is limited may occur. .

As a prior art for solving the above-described problem, there is a technology for controlling the generation speed of interrupts according to the sum of network packets and bytes in communication between a CPU and a NIC, but according to this, the generation speed of interrupts is excessively delayed. Depending on this, the transmission of I/O response may be delayed.

As another prior art, in the communication between the host and the storage device, there is a technology for controlling the rate of occurrence of interrupts according to the CPU load of the host and the number of delayed I/Os, but according to this technology, interrupts are generated according to the number of already delayed I/Os. Because it controls the speed, there is a limitation that it is difficult to be a fundamental solution to the transmission delay of the input/output response.

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

According to one 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 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 the above is completed, wherein the processor controls the speed at which the interrupt is generated. is controlled at a first rate, and a length of a transmission queue for transmitting the input/output response to the external device is identified. When the length of the transmission queue exceeds a predetermined threshold length, the interrupt generation rate is set. The second speed is changed to a faster speed than the first speed.

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

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

Here, the length of the control interval 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 the 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.

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

Meanwhile, the processor may include a plurality of cores, and control the generation rate of the interrupt 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, and when an operation according to the input/output request is completed, an interrupt indicating completion of the operation is generated, and the input/output request is received. A control method of an electronic device that transmits an input/output response to an external device to an external device, the step of controlling the generation rate of the interrupt to a first rate, a transmission queue for transmitting the input/output response to the external device identifying a length and, if the length of the transmission queue exceeds a predetermined threshold length, changing the generation rate of the interrupt 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 inputs/outputs from an external device. Receives a request, generates an interrupt indicating completion of the operation when the operation according to the input/output request is completed, transmits an input/output response to the input/output request to the external device, and controls the electronic device of the interrupt. Controlling the generation rate to a first rate, identifying 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 interrupt and changing the generation rate of to a second rate 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 briefly showing the configuration of an electronic device according to an embodiment of the present disclosure, and
5 is a block diagram showing the configuration of an electronic device according to an embodiment of the present disclosure in detail.

Since the present embodiments can apply various transformations and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the scope to 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 elements.

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

In addition, the following embodiments may be modified in many different forms, and the scope of the technical idea of the present disclosure is not limited to the following embodiments. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the spirit of the disclosure to those skilled in the art.

Terms used in this disclosure are only used to describe specific embodiments, and are not intended to limit the scope of rights. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present disclosure, expressions such as “has,” “can have,” “includes,” or “can include” indicate the presence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence 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” (1) includes at least one A, (2) includes at least one B, Or (3) may refer to all cases including at least one A and at least one B.

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

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

On the other hand, when an element (eg, a first element) is referred to as being “directly connected” or “directly connected” to another element (eg, a second element), the element and the above It may be understood that other components (eg, a third component) do not exist between the other components.

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

Instead, in some contexts, the phrase "device configured to" may mean that the device is "capable of" in conjunction with other devices or components. For example, the phrase "a processor configured (or configured) to perform A, B, and C" may include a dedicated processor (eg, embedded processor) to perform the operation, or by executing one or more software programs stored in a memory device. , may mean a general-purpose processor (eg, CPU or 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 with 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 by at least one processor, except for 'modules' or 'units' that need to be implemented with specific hardware.

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

Hereinafter, with reference to the accompanying drawings, an embodiment according to the present disclosure will be described in detail so that those skilled in the art can easily implement it.

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

As shown in FIG. 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 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 'server' or 'I/O device', and the external device 200 may be referred to as a 'client terminal'.

Meanwhile, when an input/output request is received from the external device 200, the electronic device 100 generates an interrupt indicating that the input/output request has been received, so that the application can perform an operation according to the input/output request. In addition, when the operation according to the input/output response is completed, the electronic device 100 generates an interrupt indicating that the operation according to the input/output response is completed, thereby emptying a transmission queue for data packets corresponding to the input/output response. .

However, if an interrupt is generated too quickly, a problem may occur in which resources for processing the interrupt are excessively increased and resources for processing other tasks are limited accordingly. Conversely, if the interrupt occurs too slowly, a delayed problem of input/output response may occur in which a transmission queue remains filled and new data packets cannot be transmitted. Therefore, it is necessary to control the generation speed of interrupts to prevent delay in input/output response while reducing the occurrence of overhead due to interrupt processing.

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

2 is a flowchart illustrating a control method of 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 an interrupt generating rate to a first rate (S210). Here, the term 'first rate' is used as a term for referring 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 user's or developer's setting. For example, the first rate may be a rate that generates 1000 interrupts per second. The first speed may be preferably determined within a range capable of reducing the occurrence of overhead due to interrupt processing as described above. Meanwhile, the term 'interrupt generation rate' may be replaced with terms such as 'interrupt generation rate' or 'interrupt generation 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. Also, the 'length of the transmission queue' may correspond to the amount (number of bytes) of packets filled in the transmission queue. Meanwhile, when a preset time arrives or a preset amount of packets fill 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 an operation according to an input/output response is completed is generated, the transmission queue is emptied and a new data packet can be filled in the transmission queue accordingly.

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 vary depending on the setting of the user or the developer. In particular, it is important to determine the length of the transmission queue within a range in which the increase in resources due to itself does not cause a load on the entire system. may be desirable.

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

On the other hand, if the length of the transmit queue exceeds the predetermined threshold length (S230-Y), the electronic device 100 may change the interrupt generating rate to a second rate faster than the first rate (S240). Here, the 'second speed' is used as a term for specifying the generation speed of the interrupt changed according to the present disclosure by distinguishing it from the first speed as described above. Like the first speed, the second speed may also be differently determined according to settings of a user or developer. For example, the second speed may be a speed that generates 3000 interrupts per second. The second speed may be determined within a range in which overhead due to interrupt processing does not excessively increase while resolving a problem in which transmission of an input/output response is delayed when an interrupt occurs too slowly.

Meanwhile, the above has been described on the premise that the threshold length to be compared with the length of the transmission queue is specified as one, 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 each of a plurality of control intervals classified according to the plurality of threshold lengths. For example, if the length of the transmit queue exceeds the first threshold length while the interrupt is generated at the first rate, the electronic device 100 may control the generation rate of the interrupt to a second rate faster than the first rate. , If the length of the transmit queue exceeds the second threshold length longer than the first threshold length while the interrupt is generated at the second rate, the electronic device 100 controls the interrupt generation rate to a third rate faster than the second rate. can do.

Meanwhile, the above has been described on the premise that the processor of the electronic device 100 for performing the above-described control method has one core, but the processor of the electronic device 100 according to the present disclosure has a plurality of cores. It may contain a core. Also, when the processor includes a plurality of cores, the method for controlling the generation speed of interrupts 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 speed low, the occurrence of overhead according 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 speed, it is possible to prevent a delay in the input/output response.

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

In the description of FIG. 2, only the method itself for increasing the generation rate of the interrupt according to the result of monitoring the length of the transmission queue has been described, but according to another embodiment of the present disclosure, the generation rate of the interrupt is increased only during a predetermined period. and, after that period has elapsed, the interrupt generation speed may 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 transmits a response to the input/output request to the external device 200. The length of the queue can be identified (S320). And, if the length of the transmission queue is less than the predetermined threshold length (S330-N), the electronic device 100 may maintain the interrupt generating rate at the first rate and monitor the transmission queue length in real time. Since the above steps have been described in detail in the description of FIG. 2 , redundant description of the same contents 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 interval based on the difference between the length of the transmission queue and the threshold length (S340). Here, the 'control period' refers to a period in which the generation speed of the interrupt is maintained at the second speed. When the length of the control period is determined, the electronic device 100 may change the interrupt generating rate to a second rate faster than the first rate (S350). And, the generation rate of the interrupt may be maintained at the second rate until the control period elapses (S360-N).

Meanwhile, the fact 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 longer the control interval can be determined as the length of the transmission queue exceeds the preset threshold length. . In other words, since the transmission of the input/output response can be further delayed when the transmission queue is more filled, the electronic device 100 increases the length of the control period for increasing the generation speed of the interrupter in order to solve the delay in the input/output response. 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 generation speed of the interrupt to the first speed. In other words, when the period of increasing the interrupter generation rate elapses, the electronic device 100 reduces the interrupter generation rate again to prevent overhead that may occur when the interrupt generation rate is increased for an excessive amount of time. can

Meanwhile, the above has been described on the premise that the control period is specified as one period, but the control period according to the present disclosure may include a plurality of control periods, and different interrupt generation rates may be applied for each of the plurality of control periods. there is. For example, if the length of the transmission queue exceeds the threshold length, the electronic device 100 may determine the lengths of the first control period and the second control period based on the 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 generation rate of the interrupt during the first control period to a third rate faster than the second rate, and the interrupt rate during the second control period The generation rate 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 the interrupt generating rate according to the result of monitoring the length of the transmission queue, thereby preventing delay in the input/output response, and at the same time, for a predetermined period of time. After this elapses, the generation speed of the interrupter is reduced again, thereby minimizing the occurrence of overhead due to interrupt processing.

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

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 devices such as an input/output request processing module 131, a transmission queue monitoring module 132, and an interrupt generating control module 133. of modules may be included. However, the configurations shown in FIGS. 4 and 5 are merely exemplary, and new configurations may be added or some configurations may be omitted in addition to the configurations shown in FIGS. 4 and 5 in practicing the present disclosure. Of course there is.

The communication unit 110 includes a circuit and can perform communication 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 or a Bluetooth method. In the case of using a WiFi module or a Bluetooth module, various connection information such as an SSID is first transmitted and received, and various information can be transmitted and received after communication is connected 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), and 5th Generation (5G). 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 ~ 960 MHz, and 2.45 GHz.

In particular, in various embodiments according to the present disclosure, the processor 130 may receive an input/output request from the external device 200 through the communication unit 110 . Also, 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 generating speed according to the present disclosure from the external device 200 through the communication unit 110 and store them in the memory 120 .

At least one instruction related to the electronic device 100 may be stored in the memory 120 . Also, an operating system (O/S) for driving the electronic device 100 may be stored in the memory 120 . Also, various software programs or applications for operating the electronic device 100 may be stored in the memory 120 according to various embodiments of the present disclosure. Also, 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 data can be read/written/modified/deleted/updated by the processor 130.

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, micro SD card, memory stick) may be used as a meaning including.

In particular, in various embodiments according to the present disclosure, the memory 120 may store a plurality of modules for controlling an interrupt generation speed and various information/data related to the plurality of modules. In addition, the memory 120 stores information on interrupt generation rates determined by the processor 130 or set by users or developers, such as information on the first rate, second rate, and third rate according to the present disclosure. It can be. In addition, the memory 120 may store information about a critical length, a control period, and the like according to the present disclosure.

In addition, various information required within the scope of 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 a user. It could be.

The processor 130 controls overall operations 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 transmits at least one instruction stored in the memory 120 as described above. By executing, the operation of the electronic device 100 may be overall controlled.

Processor 130 can be implemented in a variety of 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), a digital signal processor Processor, DSP) may be implemented as at least one. Meanwhile, in the present disclosure, the term processor 130 may be used to include a Central Processing Unit (CPU), a Graphic Processing Unit (GPU), and a Main Processing Unit (MPU).

In particular, in various embodiments according to the present disclosure, the processor 130 is configured according to the present disclosure through a plurality of modules such as the input/output request processing module 131, the transmit queue monitoring module 132, and the interrupt generation control module 133. Various embodiments according to 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 use the plurality of modules by accessing the memory 120 and 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 an operation according to the input/output request, and thus a data packet corresponding to the input/output response. can create them.

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 identifies the length of the transmission queue. Information on the length of the transmission queue may be transmitted to the interrupt generating control module 133 .

The 'interrupt generation control module 133' refers to a module capable of controlling whether or not an interrupt occurs and the speed at which it occurs. 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. In addition, 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 about 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 can 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 generation rate of the interrupt to the first rate through the interrupt generation module. Also, 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 transmit queue exceeds the predetermined 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 predetermined critical length, the processor 130 may maintain the interrupt generation rate at the first rate through the interrupt generation control module. Here, maintaining the generation rate of the interrupt at the first rate means that additional control is not performed while the generation rate of the interrupt is maintained at the first rate, and the occurrence of the interrupt until the transmission queue length is identified again. This may include the meaning of controlling the generation speed to be the first speed.

On the other hand, if 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 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 in proportion 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, embodiments of the control method described above with reference to FIGS. 1 to 3 may be applied to the control process of the processor 130 according to the present disclosure. Of course there is.

Meanwhile, the control method of 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 containing a program that executes a control method of the electronic device 100, the electronic device 100 receives an input/output request from the external device 200, and responds to the input/output request. When the operation is completed, an interrupt indicating completion of the operation may be generated, and an input/output response to the phase input/output request may be transmitted to the external device 200 . Further, the control method of the electronic device 100 includes controlling the interrupt generation rate to a first rate, identifying the length of a transmission queue for transmitting an input/output response to the external device 200, and the transmission queue. When the length of is greater than a preset threshold length, changing the generation rate of the interrupt to a second rate faster than the first rate may be included.

In the above, the control method of the electronic device 100 and the computer readable recording medium including the program for executing the control method of the electronic device 100 have been briefly described, but this is only for omitting redundant description, and Various embodiments of the device 100 can also be applied to a computer readable recording medium including a control method of the electronic device 100 and a program 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-temporary storage medium' only means that it is a tangible device and does not contain signals (e.g., electromagnetic waves), and this term refers to the case where data is stored semi-permanently in the storage medium and temporary It does not discriminate if it is saved as . For example, a 'non-temporary storage medium' may include a buffer in which data is temporarily stored.

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

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

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

On the other hand, the term "unit" or "module" used in the present disclosure includes units composed of hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, parts, or circuits, for example. can A “unit” or “module” may be an integrated component or a minimum unit or part thereof that performs one or more functions. For example, the module may be composed of an application-specific integrated circuit (ASIC).

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

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

Although the preferred embodiments of the present disclosure have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and is common in the art to which the disclosure belongs without departing from the gist of the present disclosure claimed in the claims. Of course, various modifications are possible by those with knowledge of, and these modifications should not be individually understood from the technical spirit or perspective of the present disclosure.

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

Claims (10)

In electronic devices,
communications department;
a memory for storing data related to a plurality of modules; and
Receiving 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,
Controlling the generation rate of the interrupt 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, changing the generation rate of the interrupt to a second rate faster than the first rate;
If the length of the transmission queue is less than a predetermined threshold length, maintaining the generation rate of the interrupt at the first rate;
When the length of the transmission queue exceeds the threshold length, changing the generation rate of the interrupt to the second rate during a preset control period;
When the control period elapses, changing the generation rate of the interrupt to the first rate;
The first speed is determined based on a latency corresponding to an application for performing an operation according to the input/output request.
delete delete According to claim 1,
The electronic device of claim 1 , wherein the length of the control interval is determined based on a difference between the length of the transmission queue and the threshold length.
According to claim 4,
The electronic device of claim 1 , wherein 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.
delete According to claim 1,
The threshold length includes a first threshold length and a second threshold length longer than the first threshold length,
the processor,
When the length of the transmit queue exceeds the first threshold length, changing the generation rate of the interrupt to the second rate;
and changing the generation rate of the interrupt to a third rate faster than the second rate when the length of the transmit queue exceeds the second threshold length.
According to claim 1,
the processor,
Including a plurality of cores,
An electronic device that controls the generation speed of the interrupt for each of the plurality of cores.
A control method of an electronic device that 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. ,
controlling the generation rate of the interrupt to a first rate;
identifying the length of a transmission queue for transmitting the input/output response to the external device; and
changing the generation rate of the interrupt to a second rate faster than the first rate when the length of the transmission queue exceeds a preset threshold length; including,
The changing step is
maintaining the generation rate of the interrupt at the first rate when the length of the transmission queue is less than a predetermined threshold length;
changing the generation rate of the interrupt to the second rate during a preset control period when the length of the transmission queue exceeds the threshold length; and
When the control period elapses, changing the generation rate of the interrupt to the first rate; includes,
The first speed is determined based on a latency corresponding to an application for performing an operation according to the input/output request.
In a non-transitory computer-readable recording medium containing a program that executes a control method of an electronic device,
The 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;
The control method of the electronic device,
controlling the generation rate of the interrupt to a first rate;
identifying the length of a transmission queue for transmitting the input/output response to the external device; and
changing the generation rate of the interrupt to a second rate faster than the first rate when the length of the transmission queue exceeds a predetermined threshold length; including,
The changing step is
maintaining the generation rate of the interrupt at the first rate when the length of the transmission queue is less than a predetermined threshold length;
changing the generation rate of the interrupt to the second rate during a preset control period when the length of the transmission queue exceeds the threshold length; and
When the control period elapses, changing the generation rate of the interrupt to the first rate; includes,
The first speed is determined based on a latency corresponding to an application for performing an operation according to the input/output request.

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