Dictionary instantiation and lookup tests

.NET 8 on M3 Mac

BenchmarkDotNet v0.13.12, macOS 15.5 (24F74) [Darwin 24.5.0]
Apple M3, 1 CPU, 8 logical and 8 physical cores
.NET SDK 9.0.102
  [Host]   : .NET 8.0.12 (8.0.1224.60305), Arm64 RyuJIT AdvSIMD
  ShortRun : .NET 8.0.12 (8.0.1224.60305), Arm64 RyuJIT AdvSIMD

Job=ShortRun  IterationCount=3  LaunchCount=1  
WarmupCount=3

DictionaryLookupTests.cs

Method	Mean	Error	StdDev	Allocated
Dictionary_10_Elements_Success	5.4772 ns	0.0536 ns	0.0029 ns	-
Dictionary_100_Elements_Success	5.7659 ns	0.0538 ns	0.0029 ns	-
Dictionary_1000_Elements_Success	5.4506 ns	0.0616 ns	0.0034 ns	-
Dictionary_10000_Elements_Success	5.6382 ns	1.0046 ns	0.0551 ns	-
Dictionary_10_Elements_Fail	6.5369 ns	0.2472 ns	0.0136 ns	-
Dictionary_100_Elements_Fail	7.0432 ns	2.6296 ns	0.1441 ns	-
Dictionary_1000_Elements_Fail	6.0778 ns	0.0370 ns	0.0020 ns	-
Dictionary_10000_Elements_Fail	6.4853 ns	0.5831 ns	0.0320 ns	-
FrozenDictionary_10_Elements_Success	2.6632 ns	0.3191 ns	0.0175 ns	-
FrozenDictionary_100_Elements_Success	2.8326 ns	0.1126 ns	0.0062 ns	-
FrozenDictionary_1000_Elements_Success	2.9519 ns	0.0166 ns	0.0009 ns	-
FrozenDictionary_10000_Elements_Success	2.6849 ns	0.0681 ns	0.0037 ns	-
FrozenDictionary_10_Elements_Fail	0.3316 ns	0.0393 ns	0.0022 ns	-
FrozenDictionary_100_Elements_Fail	0.3383 ns	0.2114 ns	0.0116 ns	-
FrozenDictionary_1000_Elements_Fail	0.3251 ns	0.0241 ns	0.0013 ns	-
FrozenDictionary_10000_Elements_Fail	0.3629 ns	0.0225 ns	0.0012 ns	-

DictionaryInstantiationTests

Method	Mean	Error	StdDev	Gen0	Gen1	Gen2	Allocated
Dictionary_10_Elements	90.30 ns	3.833 ns	0.210 ns	0.0526	-	-	440 B
Dictionary_100_Elements	900.73 ns	118.164 ns	6.477 ns	0.3738	-	-	3128 B
Dictionary_1000_Elements	10,597.66 ns	563.396 ns	30.882 ns	3.6926	-	-	31016 B
Dictionary_10000_Elements	138,642.89 ns	5,207.097 ns	285.419 ns	177.7344	177.7344	66.6504	283256 B
FrozenDictionary_10_Elements	867.24 ns	51.276 ns	2.811 ns	0.2422	-	-	2032 B
FrozenDictionary_100_Elements	6,285.94 ns	265.639 ns	14.561 ns	1.5640	-	-	13144 B
FrozenDictionary_1000_Elements	65,989.60 ns	1,386.536 ns	76.001 ns	14.4043	1.2207	-	121675 B
FrozenDictionary_10000_Elements	781,551.17 ns	12,840.237 ns	703.817 ns	592.7734	592.7734	221.6797	1207968 B