In system design, we should know QPS as a non-functional requirement. Let's consider we need to design a system that should handle 5000 QPS. But I don't have any idea about the max QPS of databases to use as an indicator for my decision. Any idea how to find more information?
I know we need to specify concurrent users (connections), DB size, and the action type (read/write) of queries, but as I mentioned, I need some indicators generally.