If you're using a sharded Redis, your problem is a collection of problems satisfying the above law. What I'm getting at is that if performance is seriously a pr

If you're using a sharded Redis, your problem is a collection of problems satisfying the above law. What I'm getting at is that if performance is seriously a problem, few things beat a dedicated service with concurrent, in-process memory--instead of pushing every operation to an external, fully serialized heap.