assign process to specific cpu cores

assign_to_cores.sh

#!/bin/bash


if [ "$#" -ne 2 ]; then
    echo "Usage: $0 <process_name> <cores_list>"
    echo "Example: $0 swoole_server 0,1,2"
    exit 1
fi


PROCESS_NAME=$1
CORES_LIST=$2


PID=$(pidof "$PROCESS_NAME" | xargs -n1 | sort | head -n1)


if [ -z "$PID" ]; then
    echo "Error: Process '$PROCESS_NAME' not found."
    exit 2
fi


taskset -cp "$CORES_LIST" "$PID"


echo "Process '$PROCESS_NAME' (PID: $PID) has been assigned to cores: $CORES_LIST"