Resource allocation method of virtualized data center and virtual machine monitor

Abstract

The invention provides a resource allocation method of a virtualized data center and a virtual machine monitor. The method comprises the following steps: selecting an execution server for running virtual machines requested to be constructed by a virtual machine monitor according to a received user application request; allocating initial resource capable of meeting the resource demand of the virtual machine for each virtual machine on the execution server, and constructing the virtual machine based on the initial resource; calculating historical resource consumption of the virtual machine in a preset running period of the virtual machine; determining overbooking ratio O, which is not less than 0 and not larger than 100, according to the historical resource consumption and the resource demand; and allocating finial resource A(O) for each virtual machine on the execution server, and reconstructing the virtual machine based on the finial resource, wherein A represents cumulative distribution function of the historical resource consumption. The method provided by the invention can reduce over-allocation of resources, thereby improving resource utilization rate.

Description

technical field [0001] The invention relates to a resource allocation method of a virtualized data center and a virtual machine monitor, belonging to the technical field of resource allocation of a virtualized data center. Background technique [0002] Virtualization technology is a technology that allows multiple operating system instances to run concurrently and independently on the same hardware resources. The core of this technology is to use a virtual machine monitor to uniformly manage and schedule these virtual machines to execute on hardware resources provided by corresponding services. Using virtualization technology, applications are independently encapsulated in virtual machines. Since virtual machines are isolated from each other, multiple heterogeneous applications are allowed to run on the same server, thereby achieving application aggregation. [0003] Existing data centers that apply virtualization technology gather physical resources together to form a shar...

AI Technical Summary

Problems solved by technology

However, the existing virtualization technology only allocates resources according to user needs, and users are often blind when requesting resources for applications. They often apply for resources with the largest resource usage, so that the resource requirements of the virtual machines requested by users It is often higher than the final resource consumption when the virtual machine is running, resulting in excessive resource allocation, low resource utilization, and unsatisfied more application requests

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