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BenchmarkDotNet=v0.13.0, OS=Windows 10.0.19043.985 (21H1/May2021Update)
AMD Ryzen 9 5950X, 1 CPU, 32 logical and 16 physical cores
.NET SDK=5.0.300
  [Host]     : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT
  Job-GIPAIU : .NET 5.0.6 (5.0.621.22011), X64 RyuJIT

Runtime=.NET 5.0  Toolchain=netcoreapp50  

| Method | Mean | Error | StdDev | Ratio | Code Size | Gen 0 | Gen 1 | Gen 2 | Allocated | |————————————– |———-:|———-:|———-:|——:|———-:|——-:|——:|——:|———-:| | PlainStruct_GetHashCode | 34.241 ns | 0.1571 ns | 0.1311 ns | 1.00 | 58 B | 0.0019 | - | - | 32 B | | EquatableStruct_GetHashCode | 32.694 ns | 0.2103 ns | 0.1967 ns | 0.95 | 58 B | 0.0019 | - | - | 32 B | | HashStruct_GetHashCode | 2.004 ns | 0.0307 ns | 0.0257 ns | 0.06 | 49 B | - | - | - | - | | HashEquatableStruct_GetHashCode | 1.980 ns | 0.0135 ns | 0.0126 ns | 0.06 | 49 B | - | - | - | - | | ValueTuple_GetHashCode | 4.230 ns | 0.0704 ns | 0.0588 ns | 0.12 | 145 B | - | - | - | - | | RecordStruct_GetHashCode | 2.835 ns | 0.0128 ns | 0.0120 ns | 0.08 | 58 B | - | - | - | - | | HashEquatableRecordStruct_GetHashCode | 1.992 ns | 0.0042 ns | 0.0035 ns | 0.06 | 49 B | - | - | - | - |