(10.0.19045.3570/22H2/2022Update) 11th Gen Intel Core i5-1135G7 2.40GHz, 1 CPU, 8 logical and 4 physical cores .NET SDK 8.0.100-rc.2.23502.2 [Host] : .NET 8.0.0 (8.0.23.47906), X64 RyuJIT AVX2 DefaultJob : .NET 8.0.0 (8.0.23.47906), X64 RyuJIT AVX2 | Method | Mean | Error | StdDev | Gen0 | Allocated | |------------ |---------:|---------:|---------:|-------:|----------:| | GetLastName | 116.2 ns | 10.96 ns | 32.15 ns | 0.0343 | 144 B | (1 / 0.0343) x 1000 = 29,154.5 operations before Gen 0 collection.