Memory use. Even though threads / processes are “cheap” right now, it wasn’t the case in the past and they are still quite far from the couple-of-kbs per connec

Memory use. Even though threads / processes are “cheap” right now, it wasn’t the case in the past and they are still quite far from the couple-of-kbs per connection needed in async servers. You’re not getting a million paralel processes processing requests any time soon.