Habr article:
BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19042.1110 (20H2/October2020Update)
Intel Core i7-7700HQ CPU 2.80GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
.NET SDK=6.0.100-preview.6.21355.2
[Host] : .NET 6.0.0 (6.0.21.35212), X64 RyuJIT
DefaultJob : .NET 6.0.0 (6.0.21.35212), X64 RyuJIT
| Method | Iterations | Mean | Error | StdDev |
|---|---|---|---|---|
| ForWithCustomIncrement | 10000 | 3.498 us | 0.0658 us | 0.1153 us |
| ForeachWithEnumerableRange | 10000 | 43.313 us | 0.8207 us | 1.0079 us |
| ForeachWithYieldReturn | 10000 | 56.963 us | 1.0638 us | 1.0448 us |
| ForeachWithRangeEnumerator | 10000 | 17.931 us | 0.2047 us | 0.1915 us |
| ForeachWithRangeEnumeratorRaw | 10000 | 17.932 us | 0.1486 us | 0.1390 us |
| ForeachWithRangeEnumeratorRawWithLocal | 10000 | 3.501 us | 0.0678 us | 0.0807 us |