A thermal expansion method of openstack virtual machine memory

Abstract

This application discloses a method, device, device, and readable storage medium for thermally expanding the memory capacity of an OpenStack virtual machine. The solution includes: determining the NUMA number of the target virtual machine according to the configuration file of the target virtual machine; The target number of DIMM devices, set the corresponding relationship between each DIMM device and the host NUMA node, and determine the memory capacity of each DIMM device according to the target expansion capacity; add the target number of DIMM devices to the target virtual machine. It can be seen that in the expansion process of this solution, a corresponding number of DIMM devices are set according to the NUMA number of the virtual machine, and each DIMM device obtains memory resources from different host NUMA nodes, that is, allocates memory resources for the virtual machine from multiple host NUMA nodes. Memory resources, improve the utilization rate of memory resources of the host, and effectively avoid problems caused by insufficient memory.

Description

technical field [0001] The present application relates to the field of computer technologies, and in particular, to a method, apparatus, device, and readable storage medium for thermal expansion of OpenStack virtual machine memory. Background technique [0002] As the application of virtualization technology becomes more and more extensive, in various fields, virtual machines are gradually replacing physical machines to complete some services. When more and more services are running on the virtual machine, there will be insufficient virtual machine resources. For example, the virtual machine's memory, CPU, disk and other resources are not enough to support the current business volume. At this time, people tend to be able to expand the virtual machine without interrupting the business. [0003] At present, the mainstream hot memory expansion solution for OpenStack virtual machines is to add memory devices whose model is dimm to the virtual machine. However, when allocating h...

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a method, device, device, and readable storage medium for thermal expansion of OpenStack virtual machine memory to solve the problem of wasting host memory resources and even triggering excessive memory allocation in traditional virtual machine memory thermal expansion solutions

Images