Hmm That makes sense, but in my case, i cant figure out why i am experiencing this issue:

IE, 1gb nginx server handles 300 requests per second but a 2gb nginx server handles 700 requests per second. Everything else is identical in the. The weird is that the ram usage on these tests is very low.

So my question is, why would increasing the total system ram affect the server performance if total ram usage is very low in the first place???