A virtualization method and system based on spatial multiplexing

Abstract

The invention relates to a virtualization system based on spatial multiplexing. The system comprises a system platform, a virtual machine monitor and a plurality of virtual machines, wherein the system platform comprises a plurality of logic partitions and I / O equipment resources, each logic partition comprises CPU resource, memory resources and special hardware resources, and each logic partition correspondingly operates one virtual machine, and the virtual machine monitor is used for dynamically adjusting the memory resources in the logic partitions according to the operation conditions of application programs of the virtualization system; the multiple virtual machines are used for operating the application programs, one virtual machine is a privilege virtual machine, and the other virtual machines are non-privilege virtual machines, the application program operated by the privilege virtual machine is a control program which participates in controlling all the non-privilege virtual machines, distributing shared memories to all the non-privilege virtual machines, and the virtual machines are communicated through the multiplexing shared memory contents. The efficiency and stability of the virtual machines are improved through spatial multiplexing of hardware resources and dynamic balance of memory resources among different virtual machines.

Description

technical field [0001] The invention relates to the field of high-performance virtualization, in particular to a virtualization method and system based on spatial multiplexing. Background technique [0002] As one of the core technologies of cloud computing, virtualization provides a new opportunity for the development of system software. Virtualization realizes resource abstraction and isolation and sharing, introduces features such as elastic on-demand and online migration, and is widely used in data centers. However, compared with traditional operating systems, the performance overhead of virtualization is an unavoidable problem. Especially for computing and data-intensive applications such as high-performance scientific computing and high-throughput data analysis, the performance degradation caused by virtualization, Instability in performance due to competition for resource sharing makes it difficult for such applications to be ideal in the cloud. The main reason for ...

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Problems solved by technology

Full hardware virtualization does not need to modify the system. Thanks to the hardware support, the switching overhead of the execution environment between the client and the host is greatly reduced, but it cannot be avoided, and the virtual machine monitor still needs to perform a large number of privileged operation authorization and Simulation; in fact, the optimization of virtualization performance of new products on mainstream commodity hardware platforms mostly focuses on reducing guest virtual machine exit (VMExit)

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