Fair question, and it is the main weakness of what I posted.

The floor tells you what you can rule out, not what you need. If Sonarr will not even start under 190 MB, you know a 512 MB box is already tight before you have indexed a single thing. That is useful for elimination and not much else.

Several people in this thread said the same, so I am running the follow-up now: the same apps, but measuring peak RSS while they are being hit by 24 concurrent clients, plus requests/sec so you can see what the memory bought you. Every app gets an idle number and a working number next to it.

If there is a specific workload you would want simulated rather than a generic HTTP hammer, tell me and I will add it.