公开(公告)号：US11928510B2

公开(公告)日：2024-03-12

申请号：US17324447

申请日：2021-05-19

Applicant: VMware LLC

Inventor： Qasim Ali ,  Arunachalam Ramanathan ,  Rajesh Venkatasubramanian

IPC: G06F9/455 ,  G06F9/50 ,  G06F12/0882 ,  G06F12/1009

CPC classification number: G06F9/5016 ,  G06F9/45558 ,  G06F9/5077 ,  G06F12/0882 ,  G06F12/1009 ,  G06F2009/45583 ,  G06F2009/45595 ,  G06F2212/2542

Abstract: In one set of embodiments, a hypervisor of a host system can determine that a delta between local and remote memory access latencies for each of a subset of NUMA nodes of the host system is less than a threshold. In response, the hypervisor can enable page sharing across the subset of NUMA nodes, where enabling page sharing comprises associating the subset of NUMA nodes with a single page sharing table, and where the single page sharing table holds entries identifying host physical memory pages of the host system that are shared by virtual machines (VMs) placed on the subset of NUMA nodes.