``` ini

BenchmarkDotNet=v0.13.1.1611-nightly, OS=Windows 10.0.19043.1288 (21H1/May2021Update)
Intel Core i7-7700HQ CPU 2.80GHz (Kaby Lake), 1 CPU, 8 logical and 4 physical cores
.NET SDK=6.0.100-rc.2.21505.57
  [Host]     : .NET 6.0.0 (6.0.21.48005), X64 RyuJIT
  Job-RZOYXY : .NET 7.0.0 (42.42.42.42424), X64 RyuJIT

PowerPlanMode=00000000-0000-0000-0000-000000000000  Arguments=/p:DebugType=portable,-bl:benchmarkdotnet.binlog  Toolchain=CoreRun  
IterationTime=250.0000 ms  MaxIterationCount=20  MinIterationCount=15  
WarmupCount=1  

```
|                         Method | repeat | length |          Mean |         Error |        StdDev |        Median |           Min |           Max |   Gen 0 |   Gen 1 |   Gen 2 | Allocated |
|------------------------------- |------- |------- |--------------:|--------------:|--------------:|--------------:|--------------:|--------------:|--------:|--------:|--------:|----------:|
|             **AppendLine_Strings** |      **?** |      **?** |     **283.75 ns** |      **3.941 ns** |      **3.687 ns** |     **282.64 ns** |     **278.99 ns** |     **290.89 ns** |  **0.4098** |       **-** |       **-** |   **1,288 B** |
|              Append_Primitives |      ? |      ? |   1,128.24 ns |     19.550 ns |     16.325 ns |   1,126.86 ns |   1,102.48 ns |   1,157.95 ns |  0.3492 |       - |       - |   1,096 B |
|              Append_ValueTypes |      ? |      ? |   3,314.80 ns |     53.150 ns |     49.716 ns |   3,329.73 ns |   3,248.37 ns |   3,400.37 ns |  0.9904 |       - |       - |   3,120 B |
| Append_ValueTypes_Interpolated |      ? |      ? |   3,917.85 ns |     68.438 ns |     64.017 ns |   3,904.04 ns |   3,841.02 ns |   4,038.74 ns |  0.4948 |       - |       - |   1,584 B |
|                  Append_Memory |      ? |      ? |     557.65 ns |     48.972 ns |     54.432 ns |     546.99 ns |     461.03 ns |     666.49 ns |  1.1560 |       - |       - |   3,632 B |
|                    Append_Span |      ? |      ? |     131.18 ns |      9.010 ns |     10.015 ns |     126.42 ns |     120.22 ns |     159.47 ns |  0.0329 |       - |       - |     104 B |
|              Insert_Primitives |      ? |      ? |  34,214.02 ns |  2,463.839 ns |  2,837.361 ns |  33,663.45 ns |  31,084.14 ns |  39,611.20 ns |  3.1983 |       - |       - |  10,416 B |
|                 Insert_Strings |      ? |      ? |     817.21 ns |     78.363 ns |     90.243 ns |     822.71 ns |     652.52 ns |   1,027.87 ns |  0.4215 |       - |       - |   1,328 B |
|                 **Append_Strings** |      **1** |      **?** |     **297.92 ns** |     **44.072 ns** |     **50.753 ns** |     **288.74 ns** |     **233.56 ns** |     **374.96 ns** |  **0.3973** |       **-** |       **-** |   **1,248 B** |
|                    **ctor_string** |      **?** |    **100** |      **34.88 ns** |      **4.435 ns** |      **4.746 ns** |      **33.99 ns** |      **28.47 ns** |      **44.69 ns** |  **0.0866** |       **-** |       **-** |     **272 B** |
|                  ctor_capacity |      ? |    100 |      21.52 ns |      3.294 ns |      3.662 ns |      19.37 ns |      18.42 ns |      29.16 ns |  0.0867 |       - |       - |     272 B |
|         ToString_SingleSegment |      ? |    100 |      23.93 ns |      2.778 ns |      3.199 ns |      23.47 ns |      20.02 ns |      29.47 ns |  0.0714 |       - |       - |     224 B |
|      ToString_MultipleSegments |      ? |    100 |      31.10 ns |      0.633 ns |      0.561 ns |      31.07 ns |      30.34 ns |      32.28 ns |  0.0713 |       - |       - |     224 B |
|                    Append_Char |      ? |    100 |     247.87 ns |      4.908 ns |      5.041 ns |     249.06 ns |     239.85 ns |     257.85 ns |  0.1730 |       - |       - |     544 B |
|           Append_Char_Capacity |      ? |    100 |     270.47 ns |     16.064 ns |     18.500 ns |     273.57 ns |     227.65 ns |     304.32 ns |  0.0865 |       - |       - |     272 B |
|                 **Append_Strings** |   **1000** |      **?** | **120,036.29 ns** | **10,544.286 ns** | **12,142.815 ns** | **113,297.97 ns** | **106,528.29 ns** | **150,794.46 ns** | **88.2732** | **43.8144** |       **-** | **559,264 B** |
|                    **ctor_string** |      **?** | **100000** |  **15,580.10 ns** |  **1,966.085 ns** |  **2,185.298 ns** |  **14,799.39 ns** |  **13,298.76 ns** |  **20,693.56 ns** | **62.4438** | **62.4438** | **62.4438** | **200,093 B** |
|                  ctor_capacity |      ? | 100000 |   7,811.06 ns |    986.232 ns |  1,135.746 ns |   7,241.78 ns |   6,579.81 ns |   9,665.82 ns | 62.4702 | 62.4702 | 62.4702 | 200,072 B |
|         ToString_SingleSegment |      ? | 100000 |  21,131.51 ns |  1,317.980 ns |  1,464.931 ns |  20,454.88 ns |  19,282.23 ns |  24,222.03 ns | 62.3884 | 62.3884 | 62.3884 | 200,045 B |
|      ToString_MultipleSegments |      ? | 100000 |  20,356.55 ns |    915.329 ns |    979.392 ns |  20,291.63 ns |  18,908.57 ns |  22,732.60 ns | 62.4179 | 62.4179 | 62.4179 | 200,045 B |
|                    Append_Char |      ? | 100000 | 178,574.84 ns | 18,286.151 ns | 21,058.359 ns | 185,844.53 ns | 150,578.12 ns | 216,738.70 ns | 34.2548 | 16.8269 |       - | 209,968 B |
|           Append_Char_Capacity |      ? | 100000 | 238,312.42 ns | 14,633.864 ns | 15,658.070 ns | 236,876.47 ns | 209,668.09 ns | 269,615.72 ns | 61.5530 | 61.5530 | 61.5530 | 200,093 B |