A.15. taskset

The taskset tool is provided by the util-linux package. It allows administrators to retrieve and set the processor affinity of a running process, or launch a process with a specified processor affinity.

To set the CPU affinity of a running process, run the following command:

taskset -pc processors pid

# taskset -pc processors pid

Replace processors with a comma delimited list of processors or ranges of processors (for example, 1,3,5-7. Replace pid with the process identifier of the process that you want to reconfigure.

To launch a process with a specified affinity, run the following command:

taskset -c processors -- application

# taskset -c processors -- application

Replace processors with a comma delimited list of processors or ranges of processors. Replace application with the command, options and arguments of the application you want to run.

For more information about taskset, see the man page:

man taskset

$ man taskset