Table of Contents
What is the difference between numastatic and numanuma?
NUMA: Assigns RSS processors in a round robin basis across every NUMA node to enable applications that are running on NUMA servers to scale well. NUMAStatic: Default behavior. RSS processor selection is the same as for NUMA scalability without dynamic load balancing.
What happens when Numa spanning is disabled?
When NUMA Spanning is disabled, Hyper-V will not start, restore, or accept a live migration of a virtual machine if it would be forced to split a virtual NUMA node between two or more physical NUMA nodes. This ensures that virtual machines always run with optimal performance.
What is NUMA (Non-Uniform Memory Access)?
Non-Uniform Memory Access (NUMA) is a computer system architecture that is used with multiprocessor designs in which some regions of memory have greater access latencies. This is due to how the system memory and processors are interconnected.
What is virtual NUMA and how does it work?
Inside a virtual machine, when a workload allocates local memory for data, and accesses that data in the same NUMA node, fast local memory access results on the underlying physical system. Performance penalties due to remote memory access are successfully avoided. Virtual NUMA is configured in the following locations:
What is the difference between RSS and closeststatic and Numa?
Specifies the RSS profile. Closest: Behavior is consistent with the behavior of Windows Server® 2008 R2. ClosestStatic: No dynamic load balancing, such as distributing but not load balancing at runtime. NUMA: Assigns RSS processors in a round robin basis across every NUMA node to enable applications that are running on NUMA servers to scale well.
What is the NUMA node affinity parameter?
Specifies the NUMA node affinity for a network adapter. This ensures that a given network transmission is load balanced by RSS within the NUMA node. This affects the memory allocation and also impacts the preference and ordering of the processors in the processor array.