When searching for information on what instance type to use, the answer is typically, "it depends." This article boils down instance types with both general data on EC2 types as well as in-depth analysis of KeyDB performance and selection for different types.
The focus of this article will be using KeyDB as an in-memory database. There will be future articles on using KeyDB with FLASH storage, as well as with some of KeyDB-Pro's features, such as FLASH persistence and advanced querying, where many more cores can be taken advantage of under query intensive workloads (O(n) heavy operations, such as KEYS). When AWS Graviton2's are available, we will publish those results too.