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