Akka.Cluster.Sharding performance benchmarks

[Aaronontheweb]

close #3083

Initial numbers:

BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19041.1165 (2004/May2020Update/20H1)
AMD Ryzen 7 1700, 1 CPU, 16 logical and 8 physical cores
.NET SDK=5.0.302
  [Host]     : .NET Core 3.1.17 (CoreCLR 4.700.21.31506, CoreFX 4.700.21.31502), X64 RyuJIT
  Job-HXSFLM : .NET Core 3.1.17 (CoreCLR 4.700.21.31506, CoreFX 4.700.21.31502), X64 RyuJIT

InvocationCount=1  UnrollFactor=1  

Method	StateMode	MsgCount	Mean	Error	StdDev	Median
SingleRequestResponseToLocalEntity	Persistence	10000	110.158 ms	2.1994 ms	3.0832 ms	109.456 ms
StreamingToLocalEntity	Persistence	10000	5.156 ms	0.3821 ms	1.0964 ms	4.934 ms
SingleRequestResponseToRemoteEntity	Persistence	10000	4,157.097 ms	82.5627 ms	199.3982 ms	4,069.618 ms
StreamingToRemoteEntity	Persistence	10000	NA	NA	NA	NA
SingleRequestResponseToLocalEntity	DData	10000	111.700 ms	2.2282 ms	6.0620 ms	110.184 ms
StreamingToLocalEntity	DData	10000	4.897 ms	0.3378 ms	0.9360 ms	4.858 ms
SingleRequestResponseToRemoteEntity	DData	10000	4,157.913 ms	82.7139 ms	165.1886 ms	4,152.249 ms
StreamingToRemoteEntity	DData	10000	506.119 ms	10.1116 ms	10.3839 ms	504.516 ms

Benchmarks with issues:
ShardMessageRoutingBenchmarks.StreamingToRemoteEntity: Job-HXSFLM(InvocationCount=1, UnrollFactor=1) [StateMode=Persistence, MsgCount=10000]

Confirms #5203

[Aaronontheweb]

The numbers come out to 2,400 per second - exactly what was measured on #5203

[Aaronontheweb]

Spawn benchmarks:

BenchmarkDotNet=v0.13.1, OS=Windows 10.0.19041.1165 (2004/May2020Update/20H1)
AMD Ryzen 7 1700, 1 CPU, 16 logical and 8 physical cores
.NET SDK=5.0.302
  [Host]     : .NET Core 3.1.17 (CoreCLR 4.700.21.31506, CoreFX 4.700.21.31502), X64 RyuJIT
  Job-BWMBDZ : .NET Core 3.1.17 (CoreCLR 4.700.21.31506, CoreFX 4.700.21.31502), X64 RyuJIT

InvocationCount=1  IterationCount=1  LaunchCount=5  
RunStrategy=ColdStart  UnrollFactor=1  WarmupCount=0  

Method	StateMode	EntityCount	RememberEntities	Mean	Error	StdDev	Median
SpawnEntities	Persistence	1000	False	1.836 s	2.1365 s	0.5548 s	1.446 s
SpawnEntities	Persistence	1000	True	2.100 s	1.5785 s	0.4099 s	1.901 s
SpawnEntities	DData	1000	False	1.033 s	0.0969 s	0.0252 s	1.033 s
SpawnEntities	DData	1000	True	74.788 s	9.7173 s	2.5235 s	74.670 s

[Aaronontheweb]

Validates that #5190 is an issue.