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MapVsDictionaryLookUpBenchmarks.md

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Map vs Dictionary (Look Up)

github repo

The source code for all benchmarks are in Tools/Towel.Benchmarking.

BenchmarkDotNet=v0.13.0, OS=Windows 10.0.19042.1110 (20H2/October2020Update)
Intel Core i7-4790K CPU 4.00GHz (Haswell), 1 CPU, 8 logical and 4 physical cores
.NET SDK=6.0.100-preview.6.21355.2
  [Host]     : .NET 5.0.8 (5.0.821.31504), X64 RyuJIT
  Job-HBXSTX : .NET 5.0.8 (5.0.821.31504), X64 RyuJIT

InvocationCount=1  UnrollFactor=1
Method N Mean Error StdDev Median
MapDelegates 10 686.4 ns 15.58 ns 34.53 ns 700.0 ns
MapStructs 10 361.6 ns 18.03 ns 52.89 ns 400.0 ns
Dictionary 10 251.5 ns 17.81 ns 52.22 ns 300.0 ns
MapDelegates 100 2,592.3 ns 33.21 ns 27.74 ns 2,600.0 ns
MapStructs 100 1,500.0 ns 0.00 ns 0.00 ns 1,500.0 ns
Dictionary 100 985.7 ns 21.61 ns 35.50 ns 1,000.0 ns
MapDelegates 1000 21,391.7 ns 101.57 ns 79.30 ns 21,400.0 ns
MapStructs 1000 12,292.9 ns 168.28 ns 149.17 ns 12,300.0 ns
Dictionary 1000 8,480.0 ns 162.63 ns 152.13 ns 8,400.0 ns
MapDelegates 10000 211,330.8 ns 3,541.49 ns 2,957.30 ns 209,400.0 ns
MapStructs 10000 122,541.2 ns 2,435.10 ns 3,932.24 ns 125,300.0 ns
Dictionary 10000 81,600.0 ns 1,394.85 ns 1,164.76 ns 81,500.0 ns