BsonUtilsHexConversionPerformance

This repository contains a Benchmark.NET based demo application that showcases the performance improvement suggested to the BsonUtils type within the MongoDB C# driver. Test results on my machine are as follows (single-threaded):

BenchmarkDotNet=v0.10.8, OS=Windows 7 SP1 (6.1.7601)
Processor=Intel Xeon CPU X5670 2.93GHzIntel Xeon CPU X5670 2.93GHz, ProcessorCount=24
Frequency=2857451 Hz, Resolution=349.9623 ns, Timer=TSC
  [Host]       : Clr 4.0.30319.42000, 32bit LegacyJIT-v4.7.2053.0
  Clr          : Clr 4.0.30319.42000, 32bit LegacyJIT-v4.7.2053.0
  Dry          : Clr 4.0.30319.42000, 32bit LegacyJIT-v4.7.2053.0
  LegacyJitX64 : Clr 4.0.30319.42000, 64bit LegacyJIT/clrjit-v4.7.2053.0;compatjit-v4.7.2053.0
  LegacyJitX86 : Clr 4.0.30319.42000, 32bit LegacyJIT-v4.7.2053.0
  RyuJitX64    : Clr 4.0.30319.42000, 64bit RyuJIT-v4.7.2053.0

LegacyJit | X86

Method	Mean
'ToHexString: old'	235,449.30 us
'ParseHexString: old'	1,585,768.98 us
'ToHexChar: old'	16.98 us
'ToHexString: new'	145,015.31 us
'ParseHexString: new'	160,424.46 us
'ToHexChar: new'	26.45 us

LegacyJit | X64

Method	Mean
'ToHexString: old'	237,773.84 us
'ParseHexString: old'	1,974,205.16 us
'ToHexChar: old'	16.22 us
'ToHexString: new'	129,303.31 us
'ParseHexString: new'	145,404.89 us
'ToHexChar: new'	20.85 us

RyuJit | X64

Method	Mean
'ToHexString: old'	242,496.68 us
'ParseHexString: old'	1,699,714.73 us
'ToHexChar: old'	39.27 us
'ToHexString: new'	154,297.40 us
'ParseHexString: new'	175,683.47 us
'ToHexChar: new'	10.09 us