Search functionality is an interesting but complex area when it comes to testing. A search functionality is by definition a search engine, which deals with vast amounts of data and an underlying search algorithm built on complex statistical models. That’s not to mention the ever-increasing user expectations for the search feature to understand nuances in human language, capable of handling misspellings, synonyms, and natural language queries.

As users now expect applications to provide instant updates, live chats, and dynamic content, modern web development requires the ability to deliver realtime experiences and communication between users and servers. WebSocket is a communication protocol that allows full-duplex two-way communication between a client and a server over a single TCP connection. The connection persists unless it is explicitly told to disconnect or in case of network or server failure.

In this article, we'll show how you can use Elixir's profile.eprof mix task to evaluate and improve code performance in your Elixir application. You'll see how we used the profiling mix task to lower reductions in our instrument/3 function and custom instrumentation functionality, both key parts of our Elixir integration.