Benchmark to measure ShardingCoordinator.CoordinatorState serialization over DData

[Aaronontheweb]

Changes

Measuring serialization speed for the DData replicator

Latest dev Benchmarks

BenchmarkDotNet v0.13.12, Pop!_OS 22.04 LTS
13th Gen Intel Core i7-1360P, 1 CPU, 16 logical and 12 physical cores
.NET SDK 9.0.100
  [Host]     : .NET 8.0.11 (8.0.1124.51707), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.11 (8.0.1124.51707), X64 RyuJIT AVX2

Method	ShardCount	Mean	Error	StdDev	Gen0	Gen1	Allocated
SerializeCoordinatorState	1	1.690 μs	0.0024 μs	0.0021 μs	0.2651	-	2.45 KB
DeserializeCoordinatorState	1	2.919 μs	0.0093 μs	0.0087 μs	0.3967	-	3.71 KB
SerializeDataEnvelope	1	2.060 μs	0.0038 μs	0.0034 μs	0.3510	-	3.23 KB
DeserializeDataEnvelope	1	4.066 μs	0.0135 μs	0.0113 μs	0.5035	-	4.67 KB
SerializeDataWrite	1	2.212 μs	0.0101 μs	0.0094 μs	0.3662	-	3.39 KB
DeserializeDataWrite	1	4.297 μs	0.0156 μs	0.0139 μs	0.5341	-	5 KB
SerializeCoordinatorState	20	5.911 μs	0.0183 μs	0.0153 μs	1.0376	0.0153	9.58 KB
DeserializeCoordinatorState	20	15.726 μs	0.0164 μs	0.0146 μs	1.9531	0.0610	18.33 KB
SerializeDataEnvelope	20	6.484 μs	0.0450 μs	0.0399 μs	1.4191	0.0305	13.05 KB
DeserializeDataEnvelope	20	16.678 μs	0.0315 μs	0.0279 μs	2.4414	0.0610	22.99 KB
SerializeDataWrite	20	6.683 μs	0.0172 μs	0.0153 μs	1.4343	0.0534	13.21 KB
DeserializeDataWrite	20	12.999 μs	0.0220 μs	0.0184 μs	2.5024	0.0610	23.33 KB
SerializeCoordinatorState	100	21.923 μs	0.0495 μs	0.0438 μs	4.3945	0.2747	40.4 KB
DeserializeCoordinatorState	100	82.973 μs	0.1359 μs	0.1205 μs	11.7188	1.4648	108.68 KB
SerializeDataEnvelope	100	23.528 μs	0.0850 μs	0.0754 μs	6.0730	0.4272	55.85 KB
DeserializeDataEnvelope	100	71.650 μs	0.1363 μs	0.1208 μs	11.2305	1.2207	103.97 KB
SerializeDataWrite	100	23.786 μs	0.0631 μs	0.0559 μs	5.9509	0.7935	54.73 KB
DeserializeDataWrite	100	60.977 μs	0.1250 μs	0.1108 μs	12.6953	1.7090	116.77 KB
SerializeCoordinatorState	1000	216.195 μs	0.8867 μs	0.7860 μs	42.2363	12.4512	390.59 KB
DeserializeCoordinatorState	1000	1,052.957 μs	0.8625 μs	0.7646 μs	152.3438	72.2656	1409.48 KB
SerializeDataEnvelope	1000	222.330 μs	2.0858 μs	1.9510 μs	57.1289	14.1602	526.2 KB
DeserializeDataEnvelope	1000	1,041.750 μs	3.0859 μs	2.7356 μs	166.0156	99.6094	1535.42 KB
SerializeDataWrite	1000	220.144 μs	1.6578 μs	1.4696 μs	57.1289	28.5645	526.37 KB
DeserializeDataWrite	1000	976.237 μs	5.3706 μs	4.7609 μs	167.9688	103.5156	1547.56 KB

[Aaronontheweb]

The memory allocations here are going to be larger than the payload size - there's definitely some room for improvement IMHO, but these figures aren't horrible all things considered.