taskset

Get or set a process' CPU affinity or start a new process with a defined CPU affinity. More information: https://manned.org/taskset.

Get a running process' CPU affinity by PID:

taskset --pid --cpu-list {{pid}}

Set a running process' CPU affinity by PID:

taskset --pid --cpu-list {{cpu_id}} {{pid}}

Start a new process with affinity for a single CPU:

taskset --cpu-list {{cpu_id}} {{command}}

Start a new process with affinity for multiple non-sequential CPUs:

taskset --cpu-list {{cpu_id_1}},{{cpu_id_2}},{{cpu_id_3}}

Start a new process with affinity for CPUs 1 through 4:

taskset --cpu-list {{cpu_id_1}}-{{cpu_id_4}}