How can I run a Flask application with a gevent WSGI server and still use all the CPU cores?

Question

Flask

How can I run a Flask application with a gevent WSGI server and still use all the CPU cores? There is such an option: run several copies of the application, in which a separate port in a certain range is listening. For example, for 4 cores, we launch 4 processes and listen to ports in the range 5000..5003. We put nginx in front as a load balancer. But I'm not sure if this is the best option and maybe there are better ones?

Also, in your experience, what other WSGI servers would you recommend for a Flask deployment? gevent was chosen because it uses lightweight streams and the event loop is implemented with libev, so you can process client requests efficiently and quickly.

Answer 1

Try gunicorn it supports gevent workers.