A blog on software engineering by Trevor Brown

Introducing eFlambé

I recently published an article on the Code for RentPath blog about a new tool I created during SpawnFest this year.

SpawnFest is an annual 48 hour online contest where teams try to build the best BEAM-based application, as determined by the judges based on certain criteria. In this blog post I am going to introduce the new tool I created during SpawnFest.

eFlambé is a tool for rapidly profiling Erlang and Elixir code. It is intended to be one of the first tools you reach for when debugging a performance issue in your Elixir or Erlang application. With a single command you can visualize your code’s performance as an interactive flame graph in your flame graph viewer of choice. It’s written in Erlang and published to

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screenshot of speedscope gui