BenchmarkOutput.md

BenchmarkDotNet=v0.10.5, OS=ubuntu 16.04
Processor=Intel Xeon CPU E5-2660 0 2.20GHz, ProcessorCount=2
Frequency=1000000000 Hz, Resolution=1.0000 ns, Timer=UNKNOWN
dotnet cli version=2.0.0-preview2-005905
  [Host]     : .NET Core 4.6.25226.02, 64bit RyuJIT
  DefaultJob : .NET Core 4.6.25226.02, 64bit RyuJIT

Method	Mean	Error	StdDev
ProcessStarting	3.495 ms	0.1415 ms	0.4173 ms

Program.cs

class Program
{
     static void Main(string[] args)
    {
        var summary = BenchmarkRunner.Run<Test>();
        Console.Write(summary);
    }
}

public class Test
{
    [Benchmark]
    public void ProcessStarting()
    {
        Process process;
        using (process = Process.Start(@"/bin/echo"))
        {
            while(!process.HasExited)
                process.WaitForExit(1);
        }
    }
}