Why takes to much time while doing sudo bench restart

INFO:bench.utils:sudo supervisorctl restart frappe-bench-workers: frappe-bench-web:
**here its sticking for 5-10 minute **

frappe-bench-workers:frappe-bench-frappe-schedule: stopped
frappe-bench-workers:frappe-bench-frappe-default-worker-0: stopped
frappe-bench-workers:frappe-bench-frappe-long-worker-0: stopped
frappe-bench-workers:frappe-bench-frappe-short-worker-0: stopped
frappe-bench-web:frappe-bench-node-socketio: stopped
frappe-bench-web:frappe-bench-frappe-web: stopped
frappe-bench-workers:frappe-bench-frappe-schedule: started
frappe-bench-workers:frappe-bench-frappe-default-worker-0: started
frappe-bench-workers:frappe-bench-frappe-long-worker-0: started
frappe-bench-workers:frappe-bench-frappe-short-worker-0: started
frappe-bench-web:frappe-bench-frappe-web: started
frappe-bench-web:frappe-bench-node-socketio: started

please help