Communication method of symbiotic virtual machine based on multi-core lockless ring buffer area

Abstract

The invention discloses a communication method of a symbiotic virtual machine based on a multi-core lockless ring buffer area. The communication method comprises the following implementing steps of applying for a buffer area with fixed size in a share memory in advance, equally dividing the buffer area into element data areas, designating one element data area to store description information of the buffer area and identification variables of the buffer area, and organizing the other element data areas to form a ring in logic, so as to form the multi-core lockless ring buffer area; when the symbiotic virtual machine requires communication, using a communication sender as a writer, writing the communication data into the symbiotic virtual machine, and only allowing one writer to execute writing operation at the same time; using a communication receiver as a reader, enabling the reader to read the communication data in the multi-core lockless ring buffer area, and enabling multiple readers to execute the reading operation in a concurrent way. The communication method has the advantages that the high-efficiency concurrent reading by the receivers is supported, the reading and writing concurrency of the buffer area is good, the communication efficiency of the symbiotic virtual machine is high, and the multi-core processing property is fully utilized.

Description

technical field [0001] The invention relates to a communication acceleration technology of a symbiotic virtual machine of network virtualization technology, in particular to a communication method of a symbiotic virtual machine based on a multi-core lock-free ring buffer. Background technique [0002] At present, cloud computing has become a research hotspot in academia and industry. As one of the important supporting technologies of the cloud platform, virtualization technology provides many important functions such as resource isolation, fault tolerance, and improvement of resource utilization. Xen is one of the current mainstream open source virtualization platforms. On the Xen platform, each virtual machine is called a domain; virtual machines on the same physical machine are usually called symbiotic virtual machines. In the current cloud computing environment, with the improvement of hardware level, the number of virtual machines that can be accommodated on each physi...

AI Technical Summary

Problems solved by technology

In a multi-core environment, the classic lock-free ring buffer cannot make full use of the advantages brought by multi-core, and there is room for optimization

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