Method and computer system for memory management on virtual machine system

摘要

A method and a computer system for memory management on a virtual machine system are provided. The memory management method includes the following steps. First, a working set size of each of a plurality of virtual machines on the virtual machine system is obtained by at least one processor, wherein the working set size is an amount of memory required to run applications on each of the virtual machines. Then, an amount of storage memory is allocated to each of the virtual machines by the at least one processor according to the working set size of each of the virtual machines and at least one swapin or refault event, wherein the storage memory is a part of memory available from the computer system.

主权项

1. A memory management method for a virtual machine system hosted by a computer system comprising:
obtaining a working set size of each of a plurality of virtual machines on the virtual machine system by at least one processor, wherein each working set size is an amount of memory required to run applications on each of the virtual machines; and allocating an amount of storage memory to each of the virtual machines by the at least one processor according to the working set size of each of the virtual machines and at least one swapin or refault event, wherein the storage memory is a part of memory available from the computer system, and the step of allocating the amount of the storage memory to each of the virtual machines by the at least one processor according to the working set size of each of the virtual machines and the at least one swapin or refault event comprises:
allocating the amount of the storage memory to each of the virtual machines by the at least one processor according to the working set size of each of the virtual machines, and a first reduction term or a second reduction term, wherein the first reduction term is associated with an amount of the storage memory, a number of the virtual machines on the virtual machine system, and a summation of the working set size of each of the virtual machines, wherein the second reduction term is associated with an amount of the storage memory, the summation of the working set size of each of the virtual machines, and an overhead time according to the at least one swapin or refault event.