公开(公告)号：US20230036017A1

公开(公告)日：2023-02-02

申请号：US17382070

申请日：2021-07-21

Applicant: VMware, Inc.

Inventor： Xunjia LU ,  Yifan HAO ,  Sam SCALISE

IPC: G06F9/455 ,  G06F12/0815

Abstract: An example method of determining size of virtual last-level cache (LLC) exposed to a virtual machine (VM) supported by a hypervisor executing on a host computer includes: obtaining, by the hypervisor, a host topology of the host computer, the host topology including a number of LLCs in a central processing unit (CPU) of the host computer and a host LLC size being a size of each of the LLCs in the CPU; obtaining, by the hypervisor, a virtual socket size for a virtual socket presented to the VM by the hypervisor and a virtual non-uniform memory access (NUMA) node size presented to the VM by the hypervisor; determining, by the hypervisor, a virtual LLC size for the VM based on the host topology, the virtual socket size, the virtual NUMA node size, and a plurality of constraints; and presenting, to the VM, the virtual LLC size in processor feature discovery information.