Vmware numa best practices. Virtual machine followed the vNUMA rightsizing, but the workload is imbalanced between the cores on the NUMA node. Apr 6, 2020 · While there are many advanced vNUMA settings, only in rare cases do they need to be changed from defaults. Always configure the virtual machine vCPU count to be reflected as Cores per Socket, until you exceed the physical core count of a single physical NUMA node OR until you exceed the total memory available on a single physical NUMA node. Proper alignment with most operating system and application licenses models. Jul 17, 2025 · Best Practices: Similar to vSphere 8 without vTopology, you will need to manually configure the VM’s 48 vCPUs and 256 GB memory to ensure proper NUMA alignment. Aug 22, 2025 · NUMA (Non-Uniform Memory Access) is critical for modern servers. Feb 28, 2023 · As a VMware Architect, I must understand how my recommended infrastructure performs. One of the performance-focused tools is ESXi NUMA. Jan 22, 2025 · In this article, we will explore the best practices for configuring CPU cores per socket in VMware environments, delve into the underlying principles that support these practices, and provide insights into the ramifications of poor configurations. . ESXi’s NUMA scheduler works hard to keep vCPUs and memory in the same NUMA node. As a VMware Systems Engineer, I need to know how the platform performs and which changes I can make to ensure the VMs perform better. Vendor-defined application best practices are used in the vSphere environment. Mar 9, 2017 · Reduction in remote memory access since a virtual machine will be contained within the fewest number of physical NUMA nodes. Provides the in-guest application the opportunity for optimal self-configuration. Let ESXi Handle It: Default NUMA scheduling is optimal in 99% of cases. CPUs access local memory much faster than remote memory. aidsg vdlklsej metrx wznqouk xpoeyoo qurwv kjee lljzd xqyr xuaa