The third CPU resource limiting setting,
affinity, controls what host cores the virtual machine will be permitted to execute on. E.g., if an affinity value of 0-3,8-11 is provided, the virtual machine will be restricted to using the host cores 0,1,2,3,8,9,10, and 11. Valid
affinity values are written in cpuset List Format. List Format is a comma-separated list of CPU numbers and ranges of numbers, in ASCII decimal.
| CPU affinity uses the taskset command to restrict virtual machines to a given set of cores. This restriction will not take effect for some types of processes that may be created for IO. CPU affinity is not a security feature. |
For more information regarding
affinity see man cpuset. Here the List Format corresponds to valid
affinity values. Visit its Formats section for more examples.