Implementing method for optimizing network performance of virtual machine by using multiqueue technology

Abstract

The invention relates to an implementing method for optimizing the network performance of a virtual machine by using a multiqueue technology, which comprises the following three steps of: a first step of modifying a network initialization part of QEMU and increasing support for multiqueue by modifying the QEMU; a step 2 of carrying out modification on the vhost multiqueue for supporting the QEMU to use the multiqueue and supporting a vhost-net multiqueue network card, which comprises modification of using one thread to carry out data transmission for one queue and modification of system call; and a step 3 of modifying the part, i.e. the vhost-net multiqueue network card, in a vhost module, which is related to the network, so that the virtual network card supports the multiqueue transmission. According to the invention, by designing and implementing a plurality of virtual queues from the virtual machine to a host, the aim of increasing the network data traffic and the throughput of the virtual machine is fulfilled. The method has ingenious, scientific and reasonable design and has high using value and wide application prospect in the technical field of computers.

Description

(1) Technical field [0001] The invention adopts multi-queue virtualization technology based on virtio, and relates to IO virtualization in computer virtualization technology. In particular, it relates to a method for realizing network performance optimization of a virtual machine using multi-queue technology, which is a method for realizing interaction between a virtual machine and a host computer by using a multi-queue method in a virtualized network, and belongs to the field of computer technology. (2) Background technology [0002] As early as the late 1960s and early 1970s, IBM Corporation implemented commercial virtual machines on mainframes. Many documents described the implementation of virtual machines used by IBM in OS 360 and the classic virtual machine architecture, and described the use of virtual machines. A method for machine monitors to implement virtualization. The researchers summarized the third-generation computer virtualizability (Virtualizability): Poin...

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Problems solved by technology

However, this solution also has obvious defects: due to dynamic monitoring and real-time translation of binary code, there will be a loss in performance

[0010] In a virtual environment, the problem faced by I / O is: in reality, peripheral resources are limited. In order to meet the requirements of multiple guest operating systems for accessing peripherals, VMM must multiplex limited peripheral resources through I / O virtualization. resources

Although the Guest OS with the unmodified kernel contains I / O device drivers, like similar virtualization, Xen also does not allow the Guest OS to directly access the real physical hardware, but indirectly through the virtual machine authorized by VMM

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