In your list RocksDB is most like Redis, but even faster because the data doesn't have to leave the process. Think of it as a high performance sports car like

In your list RocksDB is most like Redis, but even faster because the data doesn't have to leave the process. Think of it as a high performance sports car like a Ferrari. It's not good at taking the kids to school or buying groceries. But if you need to prioritise performance at the expense of all other considerations then it's exactly what you need.