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The CPU idle status is divided in two different "sub"-states: iowait and idle. If the CPU is idle, the kernel then determines if there is at least one I/O currently in progress to either a local disk or a remotely mounted disk (NFS) which had been initiated from that CPU. If there is, then the CPU is in state iowait. If there is no I/O in progress that was ...


I have made a chart for each NUMA node affinity. Hope someone could benefit from it.

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