NGINX as load balancer question
I am thinking about splitting my single machine setup into multiple machines. I am thinking of using a NGINX as a load balancer in front of my main PHP+NGINX machines. However, I am not sure how many cores and ram to put on my load balancing node. When my NGINX with PHP is processing the requests, it uses the cpu a lot but I am not sure if this is the same case when NGINX is as a load balancer. My question is, how power hungry is NGINX when the only job it does is load balancing ?
Thanks in advance!