Non-uniform memory access (NUMA) is a computer memory design
used in multiprocessing, where the memory access time depends on the memory
location relative to the processor. Under NUMA, a processor can access its own
local memory faster than non-local memory (memory local to another processor or
memory shared between processors) 1
While configuring a SQL Server environments, it is very
important to understand the underlying NUMA architecture. SQL Server has its
own scheduling system, the User Mode Scheduler (UMS) which is NUMA aware.
