https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Performance_Tuning_Guide/main-cpu.html#s-cpu-numad
https://access.redhat.com/documentation/en/red-hat-enterprise-linux/?version=7/
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Tuning_and_Optimization_Guide/sect-Virtualization_Tuning_Optimization_Guide-NUMA-NUMA_and_libvirt.html#sect-Virtualization_Tuning_Optimization_Guide-NUMA-VCPU_Pinning