In uvicorn, I have added a new file “winloop.py”.

uvicorn/config.py:

Next:
from uvicorn import run
run("app_compat:create_app_fastapi", host="0.0.0.0",
workers=int(args["workers"]),
port=int(port),
loop="winloop",
factory=True)
Result:

Pid is 23052 and 4604.
Just,It is only running on PID 4604.