Does running an asynchronous server framework like fast_api or starlette in docker affect speed and how?

Question

Python

Good day.
Does running an asynchronous server framework like fast_api or starlette in docker affect speed and how, if so,?
Deployment of the same fast api on offsite is offered through docker, but in theory it should cut the speed.

Answer 1

Of course, docker has an overhead. In reality, you won't notice it.
You need to design your application so that it can scale horizontally. Do not think that the difference between an application running directly on a VPS and an application running in docker on the same VPS is "that's exactly what was missing." If CPU/Networking hits 100%, then this is a reason to deploy a few more identical servers and spread the load. And this is a hundred times easier to do if you have containers.
More detailed analysis: https://stackoverflow.com/questions/21889053/what-...