What is the best configuration for a load balancing server?

Question

Nginx

Now there are 3 servers, they worked separately before, but now the architecture is changing a bit, so it's time to add a 4 server to balance the load.

The question is what to focus on when choosing iron?
What consumes more nginx? processor or RAM

Answer 1

Not the name of any introductory, I will say that more often it runs into the processor than into memory. In your case, neither the percentage nor the memory is important - the load is too low.