perf improvement to char array serialisation

[sshanks-kx]

No description provided.

[sshanks-kx]

Before

StringArray
| Method                                              | Number | Mean         | Error        | StdDev       | Median       | Max          | Gen0      | Gen1     | Gen2     | Allocated   |
|---------------------------------------------------- |------- |-------------:|-------------:|-------------:|-------------:|-------------:|----------:|---------:|---------:|------------:|
| ConnectionSerialisesAndDeserialisesStringArrayInput | 1000   |     82.78 us |     0.422 us |     0.395 us |     82.60 us |     83.55 us |    1.3428 |   0.1221 |        - |    95.21 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 10000  |    921.22 us |     4.559 us |     4.042 us |    920.46 us |    929.14 us |   34.1797 |  34.1797 |  34.1797 |  1035.65 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 100000 | 11,903.46 us |    75.243 us |    70.383 us | 11,887.53 us | 12,035.93 us |  468.7500 | 437.5000 | 343.7500 | 10527.93 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 500000 | 69,583.58 us | 1,377.253 us | 2,144.217 us | 69,716.72 us | 74,019.52 us | 1000.0000 | 875.0000 | 375.0000 | 53106.07 KB |
| Method                                              | Number | Mean         | Error        | StdDev       | Median       | Max          | Gen0      | Gen1     | Gen2     | Allocated   |
|---------------------------------------------------- |------- |-------------:|-------------:|-------------:|-------------:|-------------:|----------:|---------:|---------:|------------:|
| ConnectionSerialisesAndDeserialisesStringArrayInput | 1000   |     82.47 us |     0.942 us |     0.881 us |     82.15 us |     84.39 us |    1.3428 |   0.1221 |        - |    95.21 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 10000  |  1,045.60 us |    16.986 us |    15.057 us |  1,044.38 us |  1,068.91 us |   33.2031 |  33.2031 |  33.2031 |  1035.65 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 100000 | 11,734.92 us |    81.863 us |    76.575 us | 11,747.30 us | 11,826.08 us |  468.7500 | 437.5000 | 343.7500 | 10527.93 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 500000 | 70,521.44 us | 1,382.912 us | 2,069.877 us | 70,775.66 us | 73,889.84 us | 1000.0000 | 875.0000 | 375.0000 | 53106.07 KB |

After

StringArray
| Method                                              | Number | Mean         | Error      | StdDev     | Median       | Max          | Gen0     | Gen1     | Gen2     | Allocated   |
|---------------------------------------------------- |------- |-------------:|-----------:|-----------:|-------------:|-------------:|---------:|---------:|---------:|------------:|
| ConnectionSerialisesAndDeserialisesStringArrayInput | 1000   |     64.17 us |   0.427 us |   0.356 us |     64.08 us |     65.06 us |   0.8545 |   0.1221 |        - |    56.93 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 10000  |    805.93 us |   7.883 us |   7.373 us |    808.54 us |    815.93 us |  34.1797 |  34.1797 |  34.1797 |   645.81 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 100000 |  9,186.20 us |  56.716 us |  50.277 us |  9,189.54 us |  9,269.50 us | 375.0000 | 343.7500 | 312.5000 |  6622.57 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 500000 | 45,140.39 us | 860.755 us | 845.376 us | 45,121.85 us | 47,134.21 us | 666.6667 | 583.3333 | 333.3333 | 33575.59 KB |
| Method                                              | Number | Mean         | Error      | StdDev       | Median       | Max          | Gen0     | Gen1     | Gen2     | Allocated   |
|---------------------------------------------------- |------- |-------------:|-----------:|-------------:|-------------:|-------------:|---------:|---------:|---------:|------------:|
| ConnectionSerialisesAndDeserialisesStringArrayInput | 1000   |     64.39 us |   0.231 us |     0.205 us |     64.38 us |     64.83 us |   0.8545 |   0.1221 |        - |    56.93 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 10000  |    794.84 us |  10.159 us |     9.006 us |    789.60 us |    807.88 us |  34.1797 |  34.1797 |  34.1797 |   645.81 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 100000 |  9,342.87 us |  58.679 us |    52.018 us |  9,337.29 us |  9,428.79 us | 359.3750 | 328.1250 | 296.8750 |  6622.57 KB |
| ConnectionSerialisesAndDeserialisesStringArrayInput | 500000 | 45,509.30 us | 786.517 us | 1,049.978 us | 45,517.83 us | 48,034.63 us | 600.0000 | 500.0000 | 300.0000 | 33575.58 KB |

Before

CharArray
| Method                                            | Number | Mean       | Error     | StdDev    | Median     | Max        | Gen0     | Gen1     | Gen2     | Allocated  |
|-------------------------------------------------- |------- |-----------:|----------:|----------:|-----------:|-----------:|---------:|---------:|---------:|-----------:|
| ConnectionSerialisesAndDeserialisesCharArrayInput | 1000   |   1.115 us | 0.0120 us | 0.0107 us |   1.110 us |   1.140 us |   0.0801 |        - |        - |    5.33 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 10000  |   7.214 us | 0.0332 us | 0.0278 us |   7.212 us |   7.267 us |   0.7477 |   0.0229 |        - |   49.27 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 100000 | 193.737 us | 1.6882 us | 1.5791 us | 194.088 us | 196.716 us | 153.8086 | 153.8086 | 153.8086 |  488.78 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 500000 | 804.737 us | 4.8225 us | 4.2750 us | 804.839 us | 810.504 us | 500.0000 | 500.0000 | 500.0000 | 2441.98 KB |
| Method                                            | Number | Mean       | Error     | StdDev    | Median     | Max        | Gen0     | Gen1     | Gen2     | Allocated  |
|-------------------------------------------------- |------- |-----------:|----------:|----------:|-----------:|-----------:|---------:|---------:|---------:|-----------:|
| ConnectionSerialisesAndDeserialisesCharArrayInput | 1000   |   1.075 us | 0.0077 us | 0.0068 us |   1.074 us |   1.090 us |   0.0801 |        - |        - |    5.33 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 10000  |   7.213 us | 0.0317 us | 0.0265 us |   7.224 us |   7.239 us |   0.7477 |   0.0229 |        - |   49.27 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 100000 | 194.639 us | 1.7290 us | 1.6173 us | 194.532 us | 197.383 us | 153.8086 | 153.8086 | 153.8086 |  488.78 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 500000 | 818.729 us | 7.8817 us | 7.3725 us | 819.882 us | 828.340 us | 490.2344 | 490.2344 | 490.2344 | 2442.19 KB |

After

CharArray
| Method                                            | Number | Mean         | Error       | StdDev       | Median       | Max          | Gen0     | Gen1     | Gen2     | Allocated  |
|-------------------------------------------------- |------- |-------------:|------------:|-------------:|-------------:|-------------:|---------:|---------:|---------:|-----------:|
| ConnectionSerialisesAndDeserialisesCharArrayInput | 1000   |     816.9 ns |     9.93 ns |      9.29 ns |     813.5 ns |     836.8 ns |   0.0505 |        - |        - |    3.33 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 10000  |   4,676.1 ns |    11.03 ns |     10.32 ns |   4,674.6 ns |   4,694.1 ns |   0.4501 |   0.0153 |        - |    29.7 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 100000 | 160,132.2 ns | 1,329.88 ns |  1,243.97 ns | 160,479.0 ns | 162,688.9 ns |  90.8203 |  90.8203 |  90.8203 |   293.4 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 500000 | 501,402.1 ns | 9,906.71 ns | 16,551.89 ns | 506,600.2 ns | 523,391.7 ns | 285.1563 | 285.1563 | 285.1563 | 1466.41 KB |
| Method                                            | Number | Mean         | Error       | StdDev      | Median       | Max          | Gen0     | Gen1     | Gen2     | Allocated  |
|-------------------------------------------------- |------- |-------------:|------------:|------------:|-------------:|-------------:|---------:|---------:|---------:|-----------:|
| ConnectionSerialisesAndDeserialisesCharArrayInput | 1000   |     812.0 ns |     6.29 ns |     5.58 ns |     810.3 ns |     824.7 ns |   0.0505 |        - |        - |    3.33 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 10000  |   4,597.5 ns |    13.50 ns |    12.63 ns |   4,600.3 ns |   4,616.9 ns |   0.4501 |   0.0153 |        - |    29.7 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 100000 | 161,629.5 ns | 3,226.39 ns | 2,860.11 ns | 160,547.7 ns | 167,643.9 ns |  90.8203 |  90.8203 |  90.8203 |   293.4 KB |
| ConnectionSerialisesAndDeserialisesCharArrayInput | 500000 | 503,000.7 ns | 8,535.01 ns | 7,566.06 ns | 505,503.2 ns | 512,128.9 ns | 287.1094 | 287.1094 | 287.1094 | 1466.41 KB |