Memory buffer allocation device and computer readable medium having stored thereon memory buffer allocation program

摘要

A memory buffer allocation device for allocating a memory buffer in a virtual computer system in which a plurality of virtual operating systems operate in time-sharing on one CPU having the memory buffer, includes a memory buffer division unit which divides the memory buffer into a number (n) of areas and reserves a division unit number (m) of areas out of the n areas as a dedicated memory buffer and the other areas except for the number n of the areas as a shared memory buffer. The device also includes a memory buffer allocation unit which allocates each area of the dedicated memory buffer to a number m of domains and each area of the shared memory buffer to other n-m domains except for the number m of domains, wherein the domains are of the virtual operating systems that are operating in the virtual computer system.