MiniProfiler overhead

MiniProfilerBench.cs

using System;

namespace miniprofilerclitest
{
    using BenchmarkDotNet.Attributes;
    using BenchmarkDotNet.Running;
    using BenchmarkDotNet.Attributes.Jobs;
    using StackExchange.Profiling;
    using StackExchange.Profiling.Storage;
    using System.Collections.Generic;
    [ShortRunJob]
    public class MiniProfilerBench
    {
        [Params(1, 2, 3)]
        public int NestCount;
        static readonly MiniProfilerOptions ProfilerOption = new MiniProfilerOptions();
        [Benchmark]
        public void Nested()
        {
            var mp = ProfilerOption.StartProfiler();
            var timings = new List<Timing>(NestCount);
            for (int i = 0; i < NestCount; i++)
            {
                timings.Add(mp.Step("step" + i.ToString()));
            }
            for (int i = NestCount - 1; i >= 0; i--)
            {
                if (timings[i] != null)
                {
                    timings[i].Stop();
                }
            }
            mp.Stop();
        }
        [Benchmark]
        public void NestedNull()
        {
            MiniProfiler mp = null;
            var timings = new List<Timing>(NestCount);
            for (int i = 0; i < NestCount; i++)
            {
                timings.Add(mp.Step("step" + i.ToString()));
            }
            for (int i = NestCount - 1; i >= 0; i--)
            {
                if (timings[i] != null)
                {
                    timings[i].Stop();
                }
            }
            if (mp != null)
            {
                mp.Stop();
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            var reporter = BenchmarkRunner.Run<MiniProfilerBench>();
        }
    }
}

zz-result.md

BenchmarkDotNet=v0.10.9, OS=Windows 8.1 (6.3.9600)
Processor=Intel Core i7-4770 CPU 3.40GHz (Haswell), ProcessorCount=8
Frequency=3312641 Hz, Resolution=301.8739 ns, Timer=TSC
.NET Core SDK=2.0.0
  [Host]   : .NET Core 2.0.0 (Framework 4.6.00001.0), 64bit RyuJIT
  ShortRun : .NET Core 2.0.0 (Framework 4.6.00001.0), 64bit RyuJIT

Job=ShortRun  LaunchCount=1  TargetCount=3  
WarmupCount=3  

Method	NestCount	Mean	Error	StdDev
Nested	1	6,217.55 ns	431.719 ns	24.3929 ns
NestedNull	1	80.65 ns	5.509 ns	0.3113 ns
Nested	2	6,768.58 ns	399.961 ns	22.5985 ns
NestedNull	2	151.70 ns	12.287 ns	0.6943 ns
Nested	3	7,329.23 ns	468.920 ns	26.4948 ns
NestedNull	3	229.65 ns	21.505 ns	1.2151 ns