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Versatile (micro) benchmarking that is extensible. Get statistics such as: average, iterations per second, standard deviation and the median.

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benchee lib benchee benchmark collect reductions.ex
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lib/benchee/benchmark/collect/reductions.ex 

defmodule Benchee.Benchmark.Collect.Reductions do

  @moduledoc false



  @behaviour Benchee.Benchmark.Collect



  def collect(fun) do

    parent = self()



    spawn_link(fn ->

      start = get_reductions()

      output = fun.()

      send(parent, {:reductions, get_reductions() - start, output})

    end)



    receive do

      {:reductions, reductions, output} -> {reductions, output}

    end

  end



  defp get_reductions do

    {:reductions, reductions} = Process.info(self(), :reductions)

    reductions

  end

end