```
|       Method |                           Kind | Items |              Mean |          StdDev |            Median |     Gen 0 | Allocated |
|------------- |------------------------------- |------ |------------------ |---------------- |------------------ |---------- |---------- |
|        Write | CachedReadConcurrentDictionary |  1000 |   225,437.8898 ns |   2,301.2916 ns |   224,307.7639 ns |   19.9219 | 125.19 kB |
| RandomAccess | CachedReadConcurrentDictionary |  1000 |        38.1510 ns |       0.3593 ns |        38.1710 ns |         - |       0 B |
|      ForEach | CachedReadConcurrentDictionary |  1000 |    12,751.5773 ns |     581.2744 ns |    12,767.5491 ns |         - |      48 B |
|    WriteRead | CachedReadConcurrentDictionary |  1000 |        78.9771 ns |       0.9068 ns |        79.0207 ns |         - |       0 B |
|        Write |           ConcurrentDictionary |  1000 |   220,681.6271 ns |   3,044.1570 ns |   220,026.7558 ns |   19.9219 |  125.2 kB |
| RandomAccess |           ConcurrentDictionary |  1000 |     5,807.7157 ns |      41.7800 ns |     5,811.4640 ns |         - |       0 B |
|      ForEach |           ConcurrentDictionary |  1000 |    13,586.0970 ns |     175.7761 ns |    13,615.1609 ns |         - |      56 B |
|    WriteRead |           ConcurrentDictionary |  1000 |        68.9538 ns |       0.7999 ns |        68.8947 ns |         - |       0 B |
|        Write |          CopyOnWriteDictionary |  1000 | 6,350,240.2794 ns | 193,564.5990 ns | 6,330,832.4428 ns | 2412.5000 |  11.35 MB |
| RandomAccess |          CopyOnWriteDictionary |  1000 |        31.4763 ns |       0.6182 ns |        31.4896 ns |         - |       0 B |
|      ForEach |          CopyOnWriteDictionary |  1000 |    11,074.5537 ns |     116.0739 ns |    11,057.0825 ns |         - |      48 B |
|    WriteRead |          CopyOnWriteDictionary |  1000 |    12,470.0901 ns |     192.2935 ns |    12,453.9565 ns |    4.9215 |  22.17 kB |
|        Write |             DictionaryWithLock |  1000 |    31,443.7087 ns |   1,932.9458 ns |    30,448.1770 ns |         - |       0 B |
| RandomAccess |             DictionaryWithLock |  1000 |        54.2393 ns |       1.0159 ns |        54.0626 ns |         - |       0 B |
|      ForEach |             DictionaryWithLock |  1000 |    23,488.3526 ns |     309.3112 ns |    23,436.6925 ns |    3.9795 |  22.21 kB |
|    WriteRead |             DictionaryWithLock |  1000 |        61.3252 ns |       1.9332 ns |        61.0353 ns |         - |       0 B |
```