Optimize cluster message serializer benchmarks

[Arkatufus]

Changes

• Cache message serialized byte array and manifest before performing deserialization benchmark

[Arkatufus]

Benchmark after changes:

BenchmarkDotNet v0.13.12, Windows 10 (10.0.19045.4598/22H2/2022Update)
AMD Ryzen 9 3900X, 1 CPU, 24 logical and 12 physical cores
.NET SDK 8.0.302
  [Host]     : .NET 8.0.6 (8.0.624.26715), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.6 (8.0.624.26715), X64 RyuJIT AVX2

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
Serialize_Heartbeat	147.1 ns	1.09 ns	1.21 ns	0.0267	-	224 B
Deserialize_Heartbeat	214.7 ns	1.33 ns	1.24 ns	0.0553	-	464 B
Serialize_HeartbeatRsp	192.7 ns	1.06 ns	0.94 ns	0.0315	-	264 B
Deserialize_HeartbeatRsp	247.8 ns	2.58 ns	2.42 ns	0.0639	-	536 B
Serialize_GossipEnvelope	9,650.0 ns	54.45 ns	45.47 ns	0.8850	-	7496 B
Deserialize_GossipEnvelope	5,422.8 ns	41.31 ns	36.62 ns	1.0910	0.0076	9136 B
Serialize_GossipStatus	1,215.2 ns	11.14 ns	10.42 ns	0.1965	-	1648 B
Deserialize_GossipStatus	1,705.8 ns	11.37 ns	10.64 ns	0.2918	-	2448 B
Serialize_Welcome	15,206.0 ns	67.58 ns	59.91 ns	1.1292	0.0153	9536 B
Deserialize_Welcome	7,324.3 ns	44.45 ns	41.58 ns	1.2970	0.0229	10888 B

[Arkatufus]

dev branch benchmark:

BenchmarkDotNet v0.13.12, Windows 10 (10.0.19045.4598/22H2/2022Update)
AMD Ryzen 9 3900X, 1 CPU, 24 logical and 12 physical cores
.NET SDK 8.0.302
  [Host]     : .NET 8.0.6 (8.0.624.26715), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.6 (8.0.624.26715), X64 RyuJIT AVX2

Method	Mean	Error	StdDev	Median	Gen0	Gen1	Allocated
Serialize_Heartbeat	167.7 ns	3.40 ns	8.64 ns	164.7 ns	0.0267	-	224 B
Deserialize_Heartbeat	405.0 ns	2.92 ns	2.44 ns	404.9 ns	0.0820	-	688 B
Serialize_HeartbeatRsp	214.1 ns	1.19 ns	1.05 ns	213.8 ns	0.0315	-	264 B
Deserialize_HeartbeatRsp	497.1 ns	4.86 ns	4.55 ns	497.2 ns	0.0954	-	800 B
Serialize_GossipEnvelope	10,107.7 ns	97.73 ns	91.42 ns	10,093.0 ns	0.8850	-	7488 B
Deserialize_GossipEnvelope	17,696.7 ns	223.64 ns	209.19 ns	17,734.7 ns	1.9531	-	16624 B
Serialize_GossipStatus	1,235.7 ns	8.72 ns	8.15 ns	1,236.3 ns	0.1965	-	1648 B
Deserialize_GossipStatus	3,261.7 ns	44.35 ns	39.32 ns	3,255.7 ns	0.4883	-	4096 B
Serialize_Welcome	15,396.4 ns	117.58 ns	109.98 ns	15,404.9 ns	1.1292	-	9536 B
Deserialize_Welcome	26,611.8 ns	157.65 ns	139.75 ns	26,632.6 ns	2.4414	0.0305	20480 B

[Aaronontheweb]

Much better, thank you - this is one of the rare cases where serialization is more expensive than deserialization, which is odd.