 a large number of Mixer instances, each straining to keep caches primed to satisfy incoming traffic. We expect to eventually introduce intelligent sharding such that Mixer instances become slightly specialized in handling particular data streams in order to increase the likelihood of cache hits. In other words, sharding helps improve cache efficiency by routing related traffic to the same Mixer instance over time, rather than randomly dispatching to any available Mixer instance.</p><h2 id="conclusion">Conc