July 2018
Intermediate to advanced
574 pages
14h 7m
English
We're now going to learn how to use one of the profilers that ships with Mix to analyze the performance of a certain function in our application. The profiler we're going to use is based on Erlang's fprof profiler. Mix exposes this profiler through a Mix task, which is how we're going to interact with it.
We're going to profile the ElixirDrip.Storage.store/4 function, which is responsible for creating a new Media entry on the database and triggering an upload task. To simulate that this function is taking way longer than expected to complete, we're going to insert a Process.sleep/1 call into the ElixirDrip.Storage.Media.create_initial_changeset function, which is one of the functions called by the store