System and method for adjusting guest memory allocation based on memory pressure in virtual NUMA nodes of a virtual machine

摘要

Techniques for effectuating a virtual Non-Uniform Memory Architecture (NUMA) for virtual machines and adjusting memory in virtual NUMA nodes are described. The virtual NUMA node topology may include a plurality of virtual NUMA nodes. The memory may be adjusted based on pressure in a specific virtual NUMA node of the plurality and an amount of guest memory assigned to the specific virtual NUMA node.

主权项

1. A method, comprising:
receiving a request to instantiate a virtual machine, the request including a characteristic for the virtual machine; selecting a virtual Non-Uniform Memory Architecture (NUMA) node topology for the virtual machine based on the characteristic, the virtual NUMA node topology including a plurality of virtual NUMA nodes; instantiating the virtual machine on a computer system, the virtual machine including the plurality of virtual NUMA nodes; and adjusting, based at least in part on memory pressure in a specific virtual NUMA node of the plurality of virtual NUMA nodes, an amount of guest memory assigned to the specific virtual NUMA node by a second amount of guest memory, the second amount of guest memory being exchanged between the specific virtual NUMA node and a second virtual NUMA node of the plurality of virtual NUMA nodes based at least in part on memory pressure in the second virtual NUMA node.