Elixir profiling

elixir.ex

defmodule Test do
  def run do
    Enum.each(1..50, &simulated_bottleneck/1)
  end


  defp simulated_bottleneck(x) do
    :timer.sleep(x)
  end
end


defmodule Profiler do
  def profile(fun) do
    :fprof.apply(fun, [], file: 'profile.trace')
    :fprof.profile({:file, 'profile.trace'})
    :fprof.analyse(dest: 'profile.analyse')
    
    File.rm("profile.trace")
    File.read!("profile.analyse") |> IO.puts
    File.rm("profile.analyst")
  end
end


Profiler.profile(fn -> Test.run end)