NUMA
Simulating NUMA Nodes for Nested ESXi Virtual Appliances
To troubleshoot a particular NUMA client behavior in a heterogenous multi-cloud environment, I needed to set up an ESXi7.0 environment. Currently,...
vSphere 8 CPU Topology for Large Memory Footprint VMs Exceeding NUMA Boundaries
By default, vSphere manages the vCPU configuration and vNUMA topology automatically. vSphere attempts to keep the VM within a NUMA node...
vSphere 8 CPU Topology Device Assignment
There seems to be some misunderstanding about the new vSphere 8 CPU Topology Device Assignment feature, and I hope this article...
Sub-NUMA Clustering
I’m noticing a trend that more ESXi hosts have Sub-NUMA Clustering enabled. Typically this setting is used in the High-Performance Computing...
Unexplored Territory Podcast Episode 19 – Discussing NUMA and Cores per Sockets with the main CPU engineer of vSphere
Richard Lu joined us to talk basics of NUMA, Cores per Socket, why modern windows and mac systems have a default...
Solving vNUMA Topology Mismatch When Migrating between Dual Socket Servers and Quad Socket Servers
I recently received a few questions from customers migrating between clusters with different CPU socket footprints. The challenge is not necessarily...
vSphere 7 Cores per Socket and Virtual NUMA
Regularly I meet with customers to discuss NUMA technology, and one of the topics that are always on the list is...
VM Service – Help Developers by Aligning Their Kubernetes Nodes to the Physical Infrastructure
The vSphere 7.0 U2a update released on April 27th introduces the new VM service and VM operator. Hidden away in what...
Machine Learning Workload and GPGPU NUMA Node Locality
In the previous article “PCIe Device NUMA Node Locality” I covered the physical connection between the processor and the PCIe device...