On this code, you may see how to build `Uni`s and `Multi`s using all the available channels
-- each providing tradeoffs between features and performance.
So, here are performance characteristics of passing our `ExchangeEvent` through all the different channels -- for all `Uni`s and `Multi`s:

Uni:
    Move:
        Atomic    : 15475336.87/s ✓
        Crossbeam : 22040273.44/s ✓
        Full Sync : 35061025.29/s ✓
    Zero-Copy:
        Atomic    : 9175011.26/s ✓
        Full Sync : 19802137.42/s ✓

Multi:
    Arc:
        Atomic    : 3042552.99/s ✓
        Crossbeam : 3765493.93/s ✓
        FullSync  : 2860867.65/s ✓
    OgreArc:
        Atomic    : 2724939.07/s ✓
        FullSync  : 2859997.51/s ✓
    Reference:
        MmapLog   : 7826770.62/s ✓