exceptionhandling.cs

using BenchmarkDotNet.Attributes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;

namespace MiniBench
{
    public class AsyncAccum
    {
        //[Params(1000)]
        //public int Limit { get; set; }

        public static IEnumerable<object> Limit => new object[]
        {
            1,
            100,
            1000
        };

        public int singleDefField = 10;
        public int multiDefField = 0;

        [Benchmark]
        [ArgumentsSource(nameof(Limit))]
        public void ExceptionHandling(int limit)
        {
            int lclSingleDefVar = limit - 10;
            singleDefField = limit;
            int lclMultiDefVar = lclSingleDefVar + singleDefField + multiDefField;

            try
            {
                for (int i = 0; i < limit; i++)
                {
                    lclMultiDefVar += lclSingleDefVar + singleDefField + multiDefField;
                    multiDefField -= (limit + i);
                }
            }
            finally
            {
                multiDefField1 += lclSingleDefVar + lclMultiDefVar + singleDefField + multiDefField + limit;
            }
        }
    }
}


/*
Before:

|            Method | limit |         Mean |      Error |     StdDev |
|------------------ |------ |-------------:|-----------:|-----------:|
| ExceptionHandling |     1 |     3.302 ns |  0.0384 ns |  0.0341 ns |
| ExceptionHandling |   100 |   162.655 ns |  0.0951 ns |  0.0794 ns |
| ExceptionHandling |  1000 | 1,630.610 ns | 13.9446 ns | 13.0438 ns |

After:


|            Method | limit |         Mean |      Error |     StdDev |
|------------------ |------ |-------------:|-----------:|-----------:|
| ExceptionHandling |     1 |     1.640 ns |  0.0244 ns |  0.0216 ns |
| ExceptionHandling |   100 |   150.756 ns |  0.0483 ns |  0.0452 ns |
| ExceptionHandling |  1000 | 1,617.413 ns | 18.9815 ns | 17.7553 ns |

*/