Unify app server: Gunicorn or uWSGI or other?

[aufdenkampe]

WOFpy uses uWSGI application server framework, and it looks to be much faster than Gunicorn. See https://blog.kgriffs.com/2012/12/18/uwsgi-vs-gunicorn-vs-node-benchmarks.html

Since we'll want to unify the stack, let's consider switching to uWSGI.
https://uwsgi-docs.readthedocs.io

[aufdenkampe]

Maybe re-evaluate the choice, as the article I referenced is old!

These posts show different results:

• https://www.appdynamics.com/blog/engineering/a-performance-analysis-of-python-wsgi-servers-part-2/
• https://fgimian.github.io/blog/2018/05/17/choosing-a-fast-python-api-framework/
  • Seems like Gunicorn with Meinheld workers as the fastest of many options and also benefits from being very easy to set up. Meinheld uses asynchronous network I/O.

Regardless, we should unify to one app server, and pay attention to performance, as they are not all alike!

[aufdenkampe]

We have decided to stick with Gunicorn for the main web app for now, but will revisit in the future.

[aufdenkampe]

I think my links above are outdated (i.e. Meinheld hasn't seen any dev for 18 months) because the industry move to full ASGI servers about 2 years ago. See:

• https://dev.to/bowmanjd/the-three-python-asgi-servers-5447.

It seems like Uvicorn is fastest, and although it supports HTTP/1.1 and WebSockets, it does not (yet) support HTTP/2.

An alternate is Daphne, developed by the Django team, built with pure python, and supports HTTP, HTTP2 and WebSocket protocols.

@ptomasula, lets explore which of these can be installed on ARM64 architectures (i.e. AWS Graviton).