Input and output io request processing method and device of virtual machine

Abstract

The present invention provides a virtual machine input and output IO request processing method and device. The virtual machine input and output IO request processing method is applied to a storage system, including: receiving IO requests sent by N virtual machines, where N is a natural number not less than 2; establishing an IO queue according to the IO requests sent by each virtual machine , to obtain N IO queues; respectively select a predetermined number of IO requests from the N IO queues for processing. The embodiment of the present invention can realize that when the system executes the IO request in the current processing cycle, the IO request of each virtual machine can be processed, and the IO time delay of a single virtual machine is reduced.

Description

technical field [0001] Embodiments of the present invention relate to storage technologies, and in particular to a method and device for processing input and output IO requests of a virtual machine. Background technique [0002] According to different storage media, memory can be divided into semiconductor memory, magnetic memory and so on. When performing data read and write operations on the memory, a certain read and write scheduling method is required. [0003] At present, the traditional computer system is limited by the capacity space and the number of ports of the storage system. There are often only a few hosts served by a single storage at the same time. However, in the virtual machine environment, although the number of connected physical hosts does not increase much, the physical The number of virtual machines on the machine is greatly increased, so that the number of virtual machines accessing a single storage system may reach hundreds, and the input and output ...

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional computer system is limited by the capacity space and the number of ports of the storage system. There are often only a few hosts served by a single storage at the same time. However, in the virtual machine environment, although the number of connected physical hosts does not increase much, the physical The number of virtual machines on the machine is greatly increased, so that the number of virtual machines accessing a single storage system may reach hundreds, and the input and output (Input / Output, referred to as IO) requests of each virtual machine are placed in the system queue for sequential scheduling. , this method may lead to excessively long IO delays of some virtual machines, thus affecting the quality of storage services

Images