Caching is a fundamental concept of computer science. When data is accessed frequently, we put that data in a place where it can be accessed more quickly–we put the data in a cache. When data is accessed less often, we leave it in a place where the access time is slow or expensive.

Netflix has a huge variety of data, and a huge variety of access patterns for how that data gets retrieved from storage. In today’s episode, Scott Mansfield gives an overview of Netflix’s caching architecture, including EVCache, the ephemeral, volatile cache built for Netflix’s cloud architecture.

As with other episodes about Netflix architecture, this show is a deeply technical case study.

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