Linux Magazine looks at Non-Uniform Memory Access
(NUMA) systems and Linux. It describes how to determine the NUMA topology and then how to tell Linux how to best use the processors based on the workload. "The overall performance of a NUMA system depends on the proportion of memory accesses made by all processors to local (directly connected) memory. Each access a task makes to remote memory reduces the performance of that task. It may also reduce the performance of other tasks, by causing contention for remote memory connections.
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