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RDMA network flow control method and device and computer readable storage medium

A network flow, network technology, applied in the computer field, can solve the problem of high cost, achieve the effect of preventing loss, solving communication congestion, and improving reliability

Active Publication Date: 2020-06-12
西安奥卡云数据科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing RoCE congestion control method is to implement flow control through hardware in network cards and switches, and the cost is too high

Method used

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  • RDMA network flow control method and device and computer readable storage medium
  • RDMA network flow control method and device and computer readable storage medium
  • RDMA network flow control method and device and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] According to an embodiment of the present invention, an RDMA network flow control device is provided, Figure 4 It is a schematic diagram of the RDMA network flow control device in Embodiment 1 of the device of the present invention, as shown in Figure 4 As shown, the RDMA network flow control device according to the embodiment of the present invention specifically includes:

[0040] The sending module 40 is used to send a data packet to the other node when it is judged that the usage counter of the sending memory unit is not zero, and reduce the count in the usage counter of the sending memory unit with a predetermined step size, and when it is judged that the usage counter of the sending memory unit is zero , stop sending data packets, when the flow control data packet sent by the other node is received through the receiving module, reset the sending memory unit usage counter to the number of sending memory units used, and start a new round of data packet sending; se...

Embodiment 2

[0054] An embodiment of the present invention provides an RDMA network flow control device, such as Figure 5 As shown, it includes: a memory 50, a processor 52, and a computer program stored on the memory 50 and operable on the processor 52. When the computer program is executed by the processor 52, the following method steps are realized:

[0055] Step 101, when it is judged that the usage counter of the sending memory unit is not zero, send a data packet to the other node, and reduce the count in the usage counter of the sending memory unit with a predetermined step size, and stop sending when it is judged that the usage counter of the sending memory unit is zero Data packet, when receiving the flow control data packet sent by the other node, reset the usage counter of the sending memory unit to the number of sending memory units used, and start a new round of data packet sending, wherein, the sending memory unit and the receiving memory of the other node The size of the un...

Embodiment 3

[0059] An embodiment of the present invention provides a computer-readable storage medium, where a program for realizing information transmission is stored on the computer-readable storage medium, and when the program is executed by the processor 52, the following method steps are implemented:

[0060] Step 101, when it is judged that the usage counter of the sending memory unit is not zero, send a data packet to the other node, and reduce the count in the usage counter of the sending memory unit with a predetermined step size, and stop sending when it is judged that the usage counter of the sending memory unit is zero Data packet, when receiving the flow control data packet sent by the other node, reset the usage counter of the sending memory unit to the number of sending memory units used, and start a new round of data packet sending, wherein, the sending memory unit and the receiving memory of the other node The size of the units is the same as the number of units used; in the...

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PUM

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Abstract

The invention discloses an RDMA network flow control method and device and a computer readable storage medium. The method comprises the following steps of: when it is judged that the counter used by the sending memory unit is not zero, sending a data packet to the opposite node, reducing the count in the counter used by the sending memory unit by a preset step length, stopping sending the data packet when judging that the counter used by the sending memory unit is zero, resetting the counter used by the sending memory unit as the use number of the sending memory unit when receiving the flow control data packet sent by the opposite node, and starting new sending; when it is judged that the counter used by the receiving memory unit is not zero; receiving a data packet sent by an opposite node, reducing the count in a counter used by a receiving memory unit at a preset step length, stopping receiving the data packet of the opposite node when judging that the counter used by the receivingmemory unit is zero, sending a flow control data packet to the opposite node, resetting the counter used by the receiving memory unit as the number of used receiving memory units, and starting new receiving.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to an RDMA network flow control method, device and computer-readable storage medium. Background technique [0002] Remote Direct Memory Access (Remote Direct Memory Access, referred to as RDMA) can realize the direct transmission of memory data between the application software of the two endpoints through the network, without the intervention of the operating system, CPU, and protocol stack, and easily realize the low-cost communication between the endpoints. The delay is high and the bandwidth is high, and there is no need to consume too many other resources for the processing and moving of network data. In the face of high-performance computing, big data analysis, and input-output (Input Output, referred to as IO) applications with high concurrency and low latency, RDMA is a better choice than Transmission Control Protocol (Transmission Control Protocol, referred to as T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F15/173
CPCG06F15/17331Y02D30/50
Inventor 周耀辉刘露
Owner 西安奥卡云数据科技有限公司
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