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bench.md

alias Exile.ProcessNif

Benchee.run(
  %{
    "exile" => fn ->
      {:ok, ctx} = ProcessNif.execute(['/bin/cat'], [], '', 0)
      ctx
    end,
    "port" => fn ->
      Port.open({:spawn_executable, '/bin/cat'}, [])
    end
  },
  after_each: fn
    t when is_port(t) ->
      Port.close(t)

    ctx ->
      ProcessNif.sys_close(ctx, 0)
      ProcessNif.sys_close(ctx, 1)
      :timer.sleep(5)
      {:ok, {:exit, 0}} = ProcessNif.sys_wait(ctx)
  end,
  time: 5
)

Operating System: macOS
CPU Information: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz
Number of Available Cores: 12
Available memory: 16 GB
Elixir 1.9.4
Erlang 22.1.1

Benchmark suite executing with the following configuration:
warmup: 2 s
time: 5 s
memory time: 0 ns
parallel: 1
inputs: none specified
Estimated total run time: 14 s

Benchmarking exile...
Benchmarking port...

Name            ips        average  deviation         median         99th %
port         3.26 K      306.75 μs    ±13.08%      304.98 μs      411.98 μs
exile        1.09 K      917.65 μs    ±19.95%      898.98 μs     1473.98 μs

Comparison:
port         3.26 K
exile        1.09 K - 2.99x slower +610.90 μs

Extended statistics:

Name          minimum        maximum    sample size                     mode
port        221.98 μs      612.98 μs        15.51 K     312.98 μs, 306.98 μs
exile       521.98 μs     1570.98 μs            579                895.98 μs