Performance guide and a design pattern, learning path

[speeddragon]

I would say that you can start by reading the hexdocs and have a general knowledge of what is possible to do with it.

Then depending of what you want to do with the application, might have several possibilities of optimizations / performance. I would recommend also if you are doing something with HTML/JavaScript to take a look into LiveView.

Here are some topics about specific things, but not necessary related to Phoenix.

Understanding Elixir/Phoenix performance

Hi, I’m just starting to build a side-project with Elixir and Phoenix and doing some basic test with Elixir alone. What strikes me is that almost every task seems several times slower programmed in Elixir than with Python or Perl. Examples are: traversing a directory and read file modification times, read a CSV file line by line and do some basic processing with them etc. Despite this, Elixir and Phoenix show excellent performances when compared to web frameworks written in other languages. I…

https://medium.com/@ron.arts/optimizing-elixir-phoenix-performance-a50f7c92b9e4