BenchmarkDotNet v0.15.8, Windows 11 (10.0.26100.7171/24H2/2024Update/HudsonValley)
Intel Core 7 150U 1.80GHz, 1 CPU, 12 logical and 10 physical cores
.NET SDK 10.0.101
  [Host]     : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
  DefaultJob : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
Method MeanErrorStdDevMedian
FileStream_ReadPerOneByte122.47 ms2.430 ms5.385 ms119.79 ms
FileStream_ReadPer4KBuffer_ByteArray69.95 ms0.894 ms0.746 ms70.13 ms
FileStream_ReadPer4KBuffer_ByteSpan67.41 ms0.489 ms0.458 ms67.29 ms
FileStream_ReadPer4KBuffer_CustomGetByte118.84 ms1.592 ms2.014 ms118.34 ms
BinaryReader_ReadPerOneByte181.47 ms2.500 ms4.876 ms179.94 ms
FileStream_ReadPer1KBuffer_ByteArray72.90 ms1.303 ms1.088 ms73.18 ms
FileStream_ReadPer1000ByteBuffer_ByteArray82.87 ms0.665 ms0.555 ms82.79 ms